ISO 7010 Mandatory Symbols: Meanings and Uses

This symbol can be used across workplaces, factories, warehouses, construction sites, public buildings and other environments where a mandatory instruction needs to be communicated. It is particularly useful for site-specific rules or unusual safety requirements that are not represented by a dedicated ISO 7010 pictogram.

The M001 symbol is valuable because it provides a standardised visual cue that tells people an action is compulsory rather than optional. When combined with clear supplementary wording, it can draw attention to instructions such as carrying out a particular procedure, using designated equipment or following a specific safety control.

Using the M001 General Mandatory Action symbol helps organisations communicate mandatory requirements in a consistent ISO 7010 format. It is best used where the accompanying instruction is clear and unambiguous, allowing employees, contractors and visitors to understand exactly what action is required before proceeding.

Should be used wherever a person must read operating, safety or maintenance instructions before using equipment, machinery or a product. It is commonly displayed on industrial machinery, power tools, electrical equipment and control panels where incorrect use could create a risk of injury or damage.

It is particularly useful on equipment with specific operating procedures, setup requirements, maintenance instructions or safety precautions that cannot be fully explained on the equipment itself. By directing users to the relevant manual or booklet, the symbol helps ensure important safety information is understood before proceeding.

Using this symbol helps improve workplace safety by providing a clear and internationally recognised instruction to consult the accompanying documentation. It can reduce mistakes, misuse and avoidable accidents by reminding users to follow the correct procedures before operating or servicing equipment.

It is used on electrical equipment, machinery, control systems and installations where a reliable earth connection is required to help protect people and equipment from electrical faults. The symbol is commonly positioned close to the relevant earth terminal so that the required connection can be identified quickly and correctly.

Connecting the earth terminal to ground provides a safe path for fault current if an electrical problem occurs. This can help reduce the risk of electric shock, damage to equipment and other hazards caused by electrical faults or incorrect grounding.

The symbol gives a clear visual instruction that earthing is a required safety measure, helping installers, maintenance personnel and users identify where a protective ground connection must be made. Displaying it clearly also helps reinforce correct electrical safety procedures before equipment is operated or energised.

This symbol should be used on electrical equipment, machinery, appliances and powered systems where the mains supply must be disconnected before cleaning, maintenance, servicing, adjustment or repair work is carried out. It is often positioned close to access panels, service points or operating instructions where isolation is required.

It is particularly useful where equipment could remain energised or start unexpectedly while someone is working on it. By instructing users to remove the plug from the electrical outlet, the symbol helps ensure the equipment is physically disconnected from its mains power source before work begins.

Using the symbol provides a clear and easily recognised safety instruction for operators, maintenance personnel and other users. It helps reinforce safe isolation procedures, reduce the risk of electrical injury and prevent accidental operation while equipment is being inspected, cleaned or serviced.

This symbol is commonly used in food preparation areas, healthcare environments, laboratories, washrooms, production facilities and other workplaces where clean hands are important for hygiene or contamination control. It should be displayed close to sinks, handwashing stations or entry points where the requirement needs to be seen before work begins.

Its usefulness is especially clear in environments where substances, germs or contaminants can be transferred by touch. By giving people a direct visual reminder to wash their hands, the M011 symbol helps reinforce hygiene procedures and reduces reliance on written notices alone.

Using the M011 symbol supports consistent safety and hygiene communication across a site. It can help encourage better handwashing habits among employees, visitors and contractors while making mandatory hygiene requirements easier to recognise and follow.

This sign should be displayed on staircases, access steps, ramps, elevated walkways, platforms and other locations where holding the handrail forms part of the safe method of access. It is commonly used in workplaces, factories, warehouses, public buildings and industrial environments.

The M012 symbol is particularly useful in areas where surfaces may be steep, uneven, exposed or more difficult to navigate safely. By reminding people to maintain contact with the handrail, the sign can improve stability and provide additional support while moving through the area.

Using the M012 symbol helps reinforce safe behaviour and provides a consistent visual instruction that can be understood quickly. It supports safer movement around a site, reduces reliance on written notices and can help lower the likelihood of fall-related injuries.

This symbol should be used on or near machinery, plant and equipment that cannot simply be unplugged from a mains socket. Typical applications include industrial machinery, production equipment, fixed installations, control systems and other powered equipment where a formal isolation procedure is required before work can be carried out safely.

The M021 symbol is particularly useful where hazardous movement, electrical energy, hydraulic pressure, pneumatic power or other energy sources could remain present during servicing. Displaying the sign at access panels, isolation points or maintenance areas helps remind engineers, technicians and operators that the equipment must be fully disconnected before intervention.

Using the M021 symbol reinforces safe maintenance procedures and helps reduce the risk of injury caused by unexpected start-up or the release of stored energy. It also provides a clear, standardised ISO 7010 instruction that supports lockout, isolation and maintenance controls across the workplace.

This symbol may be displayed in workshops, manufacturing areas, laboratories, maintenance facilities and other workplaces where skin protection forms part of the required safety procedure. It is particularly useful near changing points, wash stations or entrances to work areas where barrier cream is provided for employees to apply before starting the task.

The M022 symbol acts as a clear reminder that skin protection should be considered before exposure takes place rather than after irritation has occurred. Where gloves are also required, the sign can reinforce the need to follow the specified skin-care procedure before the gloves are put on.

Using the M022 Use Barrier Cream symbol supports consistent occupational skin-protection practices and makes the requirement easier to recognise at a glance. It can help reduce the risk of skin damage while reinforcing workplace procedures for employees, contractors and other people carrying out activities where barrier cream has been specified.

This symbol is suitable for factories, warehouses, industrial sites, transport areas, construction environments and public spaces where a footbridge has been provided as the safer pedestrian route. It should be positioned at the approach to the crossing point so that users understand they are required to take the elevated route rather than walk through the hazardous area.

The M023 symbol is particularly useful where pedestrian routes intersect with vehicle movements, machinery or uneven ground. By directing people onto the footbridge, the sign helps separate pedestrians from potential sources of impact, collision, tripping or falling.

Using the M023 Use Footbridge symbol provides a clear and standardised mandatory instruction that supports safer pedestrian movement around a site. It can help reduce the risk of accidents, improve route control and make the required safe crossing method easier for employees, contractors and visitors to recognise.

This symbol is well suited to factories, warehouses, distribution centres, industrial sites, loading areas and other workplaces where pedestrians and vehicles or machinery operate in close proximity. It should be positioned at the entrance to the walkway or at decision points where people need to be directed onto the designated pedestrian route.

The M024 symbol is especially useful where taking a shortcut or leaving the marked path could expose someone to moving vehicles, operating equipment or other risks. By clearly instructing pedestrians to remain on the approved walkway, the sign helps reinforce route separation and safer movement around the site.

Using the M024 Use This Walkway symbol supports consistent pedestrian control and provides a simple visual instruction that can be understood quickly. It can help reduce the likelihood of people entering unsafe areas, improve workplace traffic management and make designated walking routes easier for employees, contractors and visitors to follow.

This symbol is particularly suitable for industrial machinery, production equipment, presses, cutting machines and other powered equipment where guards form part of the safety system. It should be positioned where operators can see the instruction before starting or using the machine.

Machinery guards help separate people from moving components such as gears, blades, belts or other dangerous mechanisms. The M027 symbol provides a clear reminder to confirm that these protective measures are in position rather than assuming the machine is safe to operate.

Using the M027 Check Guard symbol can help reinforce pre-use inspection procedures and reduce the risk of injury from exposed moving machinery. It supports consistent operator behaviour and makes the requirement to verify guarding easier to recognise throughout a workplace.

This symbol is suitable for chemical storage cupboards, plant rooms, machinery enclosures, maintenance stores, electrical areas and other locations where access needs to be restricted for safety reasons. It should be positioned on or immediately beside the door, cabinet or enclosure so that the locking requirement is clear before access is attempted.

The M028 symbol is particularly useful where leaving a cabinet or facility unsecured could expose people to harmful materials or equipment. By providing a clear mandatory instruction, it helps reinforce access control procedures and reminds users that the area must be secured again after use.

Using the M028 Keep Locked symbol supports consistent workplace safety management and helps reduce the risk of accidental or unauthorised access. It provides a simple visual reminder to keep hazardous areas secure and can form part of wider procedures for controlling access to equipment, substances and restricted facilities.

This symbol is particularly useful in warehouses, factories, loading areas, construction sites, distribution centres and industrial premises where workplace vehicles operate close to pedestrians. It may be positioned near entrances, blind corners, doorways, crossings or other locations where visibility between vehicles and people is restricted.

At busy junctions or concealed access points, other people may not realise that a forklift, site vehicle or piece of mobile equipment is approaching. The M029 symbol provides a direct reminder to sound the horn, helping give nearby personnel additional warning before the vehicle enters the area.

Using the M029 Sound Horn symbol can help reduce the risk of collisions between vehicles, machinery and pedestrians. It reinforces safe driving procedures, improves awareness in areas with limited visibility and provides a standardised mandatory instruction that operators can recognise quickly.

This symbol can be used in workplaces, schools, transport facilities, public buildings, leisure areas, factories and other locations where litter bins are provided. It should be positioned on or close to the bin, or in areas where people need a visible reminder to dispose of rubbish correctly.

The M030 symbol is especially useful in busy shared spaces where discarded waste could create hygiene problems, obstructions or slip and trip hazards. By directing people to use the correct waste receptacle, it helps reinforce tidy working and public environments.

Using the M030 Use Litter Bin symbol provides a simple and consistent visual message that can be understood quickly without relying on lengthy text. It supports good housekeeping, encourages proper waste disposal and can help keep communal and working areas cleaner and safer.

This symbol is intended for table saws and similar woodworking machinery fitted with an adjustable blade guard. It should be positioned on or close to the machine where the operator can see the instruction before starting work.

The M031 symbol is particularly useful because saw guards can sometimes be moved or adjusted during setup. A clear mandatory sign reminds the operator to return the guard to the correct position and use it whenever the machine is running.

Using the M031 Use Table Saw Adjustable Guard symbol helps reinforce safe machine operation and supports consistent guarding procedures in workshops, factories and woodworking environments. It can reduce exposure to the circular saw blade and make the requirement to use the protective guard easier to recognise at a glance.

This symbol is typically used at ski resorts, mountain transport systems and other locations where chairlifts are operated. It should be displayed at boarding points, on the chairlift itself or in another clearly visible position where passengers can see the instruction immediately after taking their seat.

The M033 symbol is particularly useful because chairlift users may include visitors who are unfamiliar with the equipment or local procedures. A clear mandatory visual instruction helps remind passengers to close the restraint promptly and remain properly secured during the journey.

Using the M033 Close Safety Bar of Chairlift symbol supports consistent passenger safety procedures and helps reinforce correct chairlift use without relying solely on verbal instructions. Clear signage can reduce unsafe behaviour, improve awareness and help operators communicate an important safety requirement quickly and effectively.

This symbol is normally used at ski resorts and other mountain transport systems where chairlifts are in operation. It should be positioned before the unloading zone, giving passengers enough notice to lift the restraint before reaching the exit point.

The M034 symbol is especially useful because opening the safety bar too late can interfere with a safe dismount, while opening it too early may increase the risk of falling. Clear signage helps passengers perform the action at the intended stage of the journey.

Using the M034 Open Safety Bar of Chairlift symbol supports consistent lift operating procedures and helps improve passenger safety. It also reduces reliance on spoken instructions and gives users a simple visual cue that can be understood quickly, including by visitors unfamiliar with the chairlift.

This symbol is mainly used at ski resorts, winter sports centres and other locations where surface lifts or tow-tracks are provided. It should be positioned along the tow route and at points where users are likely to see the instruction before or during use.

The M035 symbol is particularly useful because a person who falls may instinctively remain where they are or try to recover their position on the track. Clear signage reinforces that the safest action is to move out of the tow-track as quickly as possible so following users can continue without collision or delay.

Using the M035 symbol supports safer operation of ski tow systems and helps reduce the risk of secondary accidents after a fall. It provides a simple mandatory instruction that can be understood quickly by skiers and other users, including those who may be unfamiliar with local procedures.

This symbol is mainly used at ski resorts, chairlift stations and other winter sports facilities where ski lifts are in operation. It should be positioned where users need to perform the action, such as near loading or unloading areas, so the instruction is visible at the correct time.

The M036 symbol is especially useful because skiers may otherwise leave their ski tips too low as they approach parts of the lift structure. By giving a clear visual instruction to lift the tips, the sign helps reduce the risk of contact with ramps, platforms or other technical components of the cableway.

Using the M036 Lift Ski Tips symbol supports safer and more consistent use of ski lift systems. It helps operators communicate an important passenger action quickly, reduces reliance on spoken instructions and can help prevent equipment contact or loss of balance during lift use.

This symbol is primarily used in marine environments, including ships, offshore installations and other vessels equipped with lifeboats, fully enclosed rescue boats or rigid liferafts. It should be positioned where crew members can clearly see the instruction while preparing the craft for launching.

Correctly closing and securing hatches is an important stage of the launch sequence because an unsecured opening can compromise the protection provided by the craft. The M037 symbol gives crew members a clear visual reminder to complete this action at the appropriate point before the craft enters the water or leaves the vessel.

Using the M037 symbol supports consistent emergency launch procedures and helps crews follow the required sequence under pressure. It can reduce the risk of water ingress, exposure to hazardous conditions and loss of the protected atmosphere within the craft, while making an important marine safety instruction easier to recognise quickly.

This symbol is mainly used on ships, offshore installations and other marine environments where lifeboats or rescue boats form part of the emergency evacuation arrangements. It should be positioned where crew members can see the instruction while preparing the craft for launch.

The M038 symbol is useful because the timing of engine start-up can affect the safe and orderly deployment of the survival craft. Starting too late could leave the boat without propulsion when required, while starting too early could interfere with the correct launch procedure.

Using the M038 symbol helps reinforce a standardised sequence of actions during lifeboat or rescue-boat launching. It supports crew training, reduces the chance of procedural errors and provides a clear visual reminder of when the engine should be started during an emergency launch.

This symbol is primarily used at lifeboat launching stations on ships, offshore installations and other marine environments where lifeboats form part of the emergency evacuation arrangements. It should be positioned where crew members can see it clearly while carrying out the launch procedure.

The M039 symbol is useful because lowering the lifeboat at the wrong time can disrupt the launch sequence and create additional risk for those involved. By providing a clear visual instruction, it helps trained personnel follow the correct order of actions and recognise when the craft should be lowered into the water.

Using the M039 symbol supports consistent lifeboat launching procedures and helps reduce the likelihood of mistakes during a high-pressure emergency. It also works effectively as part of a sequence of ISO 7010 marine mandatory signs covering other launch actions, such as starting the engine, releasing falls and securing hatches.

This symbol is intended mainly for ships, offshore installations and other marine environments where liferafts are launched using dedicated lowering equipment. It should be displayed at or near the relevant launching station where crew members can clearly see the instruction while preparing the liferaft for deployment.

Following the correct launch sequence is important because lowering the liferaft too early or too late can interfere with other essential preparation steps. The M040 symbol provides trained personnel with a clear visual prompt, helping them recognise when the raft should be lowered towards the water during an emergency launch.

Using the M040 symbol alongside other ISO 7010 launch-sequence signs creates a consistent set of instructions for deploying survival craft. It can help reduce procedural errors, support crew training and make the required actions easier to follow when rapid and coordinated evacuation is necessary.

This symbol is primarily used at rescue boat stations on ships, offshore installations and other marine facilities where dedicated rescue boats are provided. It should be positioned where crew members involved in launching the craft can clearly see the instruction while carrying out the deployment procedure.

Correct timing is important because lowering the rescue boat too early or too late can disrupt the launch process and affect the readiness of the craft. The M041 symbol gives trained personnel a clear visual reminder that the boat should be lowered only at the appropriate stage of the established launch sequence.

Using the M041 symbol helps standardise rescue boat launching procedures and supports faster, more organised action during an emergency. When used alongside the other ISO 7010 launch-sequence symbols, it can reduce procedural mistakes and make the required sequence easier for crew members to recognise and follow.

This symbol is primarily found at lifeboat and rescue-boat launching stations on ships, offshore installations and other marine environments. It should be positioned where crew members involved in the launch can clearly see the instruction while operating the lowering and release equipment.

Releasing the falls at the correct moment is essential because doing so too early or too late can interfere with the safe deployment of the craft. The M042 symbol gives trained personnel a clear visual reminder of this important step and helps them follow the established launch procedure in the correct order.

Using the M042 symbol alongside the other ISO 7010 launch-sequence signs creates a consistent set of visual instructions for emergency deployment. It can help reduce procedural errors, support crew training and make critical actions easier to recognise and follow during a high-pressure evacuation or rescue situation.

This symbol is used mainly on ships, offshore installations and other marine environments where lifeboats are fitted with water spray protection systems. It should be displayed at the relevant control point or launch station so crew members can identify the action clearly while following the emergency launch procedure.

The M043 symbol is particularly important when the lifeboat may need to pass through burning fuel, intense heat or contaminated water during evacuation. Activating the spray system at the correct time helps protect the external surfaces of the craft and supports safer movement away from the vessel.

Using the M043 symbol as part of the wider launch-sequence signage helps crew carry out emergency procedures in the correct order. It reinforces training, reduces the chance of a critical step being missed and provides a consistent visual instruction during a high-pressure marine evacuation.

This symbol is mainly used on ships, offshore installations and other marine environments equipped with lifeboats or similar survival craft that incorporate an independent air supply system. It should be positioned near the relevant control or launch station so crew members can identify the instruction as part of the launch sequence.

The M044 symbol is particularly important where the survival craft may need to operate in smoke, fire or another contaminated atmosphere. Starting the air supply at the correct time helps maintain safer conditions inside the craft and supports the protection of occupants while they move away from the vessel.

Using the M044 symbol alongside the other ISO 7010 launch-sequence signs helps create a clear, standardised set of emergency instructions. It supports crew training, reduces the risk of a critical step being overlooked and makes the required sequence easier to follow during a high-pressure marine evacuation.

This symbol is intended for lifeboat launching stations on ships, offshore installations and other marine environments where lifeboats are secured by gripes while not in use. It should be displayed where crew members can clearly see the instruction while preparing the craft for launch.

The M045 symbol is particularly important because releasing the gripes at the wrong time could interfere with the safe preparation or deployment of the lifeboat. A clear visual instruction helps trained crew recognise when the securing devices should be released as part of the established launch procedure.

Using the M045 symbol alongside other ISO 7010 launch-sequence signs helps create a consistent and easy-to-follow series of emergency instructions. It can reduce procedural errors, reinforce crew training and support a more controlled and organised lifeboat launch when rapid evacuation is required.

This symbol is especially suitable for laboratories, workshops, factories, hospitals, gas storage areas and other workplaces where compressed gas cylinders are stored or used. It should be displayed close to cylinder storage points, racks or work areas where securing devices such as chains, straps or brackets are required.

The M046 symbol is useful because even a relatively small movement can make a pressurised cylinder hazardous if it falls or its valve is damaged. By providing a clear mandatory instruction, it reminds employees and contractors that cylinders must be restrained in a stable position rather than left freestanding or unsecured.

Using the M046 Secure Gas Cylinders symbol supports safer gas handling and storage procedures across a workplace. It can help reduce the risk of injury, accidental release and equipment damage while making the requirement to secure cylinders immediately visible and easy to understand.

This symbol is particularly appropriate for confined spaces, chemical plants, industrial facilities, tanks, process areas and other workplaces where gas concentrations can change or build up without being immediately obvious. It should be positioned at access points or near the relevant work area so that personnel are reminded to test or monitor the atmosphere before proceeding.

The M048 symbol is useful because many dangerous gases cannot be reliably detected by sight or smell. By making gas monitoring a mandatory step, the sign helps workers identify potentially unsafe conditions before exposure occurs and reinforces the need to use properly selected and maintained detection equipment.

Using the M048 Use Gas Detector symbol supports safer entry procedures and more consistent control of hazardous atmospheres. It can help reduce the risk of poisoning, asphyxiation, fire or explosion while providing a clear visual instruction that gas detection is required before or during the task.

This symbol is most appropriate at toboggan runs, alpine coaster facilities, sledging attractions and other leisure installations where riders dismount in a controlled unloading area. It should be positioned before or at the exit point so that users understand which side they are required to leave from.

The M050 symbol is particularly useful where riders leaving in the wrong direction could cross into the path of other toboggans, moving equipment or pedestrian routes. By giving a simple directional instruction, it helps maintain an orderly flow through the unloading area and reduces confusion at the end of the ride.

Using the M050 Alighting from Toboggan to the Left symbol supports safer operation of leisure and transport facilities by making the correct exit direction easy to recognise. Clear signage can help reduce collisions, improve passenger movement and reinforce site procedures without relying solely on spoken instructions.

This symbol is most commonly used at toboggan runs, sledging facilities and other leisure attractions where riders dismount in a controlled unloading area. It should be positioned before or at the exit point so users know in advance which side they must use when leaving the toboggan.

The M051 symbol is particularly useful where alighting to the left could place users close to moving toboggans, barriers, machinery or another hazardous part of the facility. By directing all riders to the right, the sign helps maintain a predictable flow through the unloading area and reduces the chance of people stepping into an unsafe zone.

Using the M051 symbol helps operators communicate the correct unloading direction clearly and consistently. It can reduce confusion, improve passenger movement and support safer operation of toboggan facilities without relying entirely on spoken instructions or local knowledge.

This symbol is most commonly used on toboggan runs, alpine sledging tracks and similar leisure facilities where several riders may be travelling along the same route at the same time. It should be positioned at the start of the run and, where necessary, at points along the track where maintaining separation is particularly important.

The M052 symbol is useful because riders travelling too closely together may have insufficient time to react if the person in front slows suddenly, stops or falls. A clear mandatory sign reinforces the need to leave adequate space and helps promote a more controlled flow of traffic along the course.

Using the M052 Keep Distance Between Toboggans symbol supports safer operation of toboggan facilities and makes an important rider responsibility easy to recognise. Consistent signage can help reduce collisions, encourage more predictable behaviour and reinforce the operating rules of the track without relying solely on verbal instructions.

This symbol is most appropriate at swimming pools, leisure centres, water parks, beaches, paddling areas and other locations where children may enter or play close to water. It should be displayed prominently at entrances, poolside areas or other points where parents and carers are likely to see the instruction before children enter the aquatic environment.

The M054 symbol is especially useful because water-related incidents can develop very quickly, even in relatively shallow areas. A clear visual instruction reinforces that children should not be left unattended and helps remind adults that active supervision is required rather than occasional observation.

Using the M054 symbol supports safer behaviour around water and helps operators communicate supervision rules consistently to families, visitors and carers. It can strengthen drowning-prevention measures, reduce reliance on written notices alone and make an important aquatic safety instruction easy to recognise at a glance.

This symbol is suitable for locations where potentially hazardous items are stored, including laboratories, healthcare environments, workshops, maintenance areas, chemical storage locations and other workplaces where children could conceivably gain access. It may also be used on cabinets, containers or storage points where the requirement needs to be made immediately clear.

The M055 symbol is particularly useful because children may not recognise the danger associated with certain substances, tools or equipment. By giving adults a clear mandatory instruction to keep the item out of reach, the sign helps reinforce safer storage practices and reduces the likelihood of accidental access.

Using the M055 Keep Out of Reach of Children symbol provides a simple and standardised way of communicating an important safeguarding requirement. It can help prevent poisoning, injury or other serious incidents while reminding employees, carers and other responsible adults that hazardous items must be stored securely away from children.

This symbol is particularly suitable for tanks, vessels, containers, enclosed rooms, process areas and other confined or poorly ventilated spaces where dangerous gases may accumulate. It should be displayed at the access point so that personnel see the ventilation requirement before entering the space.

The M056 symbol is useful because a hazardous atmosphere may not always be detectable by sight or smell. Providing sufficient ventilation before entry can help remove or dilute harmful gases, while maintaining ventilation during occupancy helps prevent dangerous conditions from developing again.

Using the M056 symbol supports safer confined-space and restricted-area entry procedures by making ventilation a clear mandatory requirement. It can help reduce the risk of poisoning, asphyxiation and oxygen depletion while reminding workers that adequate airflow must be maintained for as long as someone remains inside the space.

This symbol is particularly suitable for tanks, containers, enclosed rooms, process areas, workshops and other spaces where contaminants may accumulate if ventilation is reduced or interrupted. It should be displayed at access points, ventilation controls or other locations where the requirement to maintain airflow needs to be clearly understood.

The M057 symbol is especially useful where ventilation openings, extraction systems or other airflow measures must remain continuously operational. It reminds workers not to block vents, switch off extraction or otherwise interfere with the ventilation needed to keep the atmosphere safe.

Using the M057 Ensure Continuous Ventilation symbol supports safer control of enclosed or potentially contaminated environments. It can help reduce the risk of exposure to harmful concentrations of emissions while reinforcing the need to keep ventilation systems operating and unobstructed throughout the activity.

This symbol is particularly suitable for tanks, vessels, containers, enclosed rooms and other confined or restricted spaces where someone entering may be unable to leave without assistance. It should be displayed clearly at the access point so that the supervision requirement is understood before entry takes place.

The M058 symbol is especially important where an accident inside the space could prevent the entrant from calling for help themselves. By requiring a supervisor to remain outside with a means of communication, the sign helps ensure that assistance can be summoned quickly if conditions deteriorate or an emergency occurs.

Using the M058 Entry Only With Supervisor Outside symbol supports safer confined-space entry procedures and reinforces the need for continuous external supervision. It can reduce delays in emergency response, improve communication and provide a clear visual reminder that lone entry into the designated space is not permitted.

This symbol is particularly suitable for airports, shopping centres, supermarkets, transport hubs and other locations where trolleys are permitted on inclined moving walkways or escalators. It should be positioned before or at the entrance to the moving walkway so that users see the instruction before travelling.

The M060 symbol is useful because a trolley can move suddenly if the walkway changes speed or stops unexpectedly. Holding the handle firmly helps the user maintain control, reducing the chance of the trolley striking another person, moving backwards or causing the user to lose balance.

Using the M060 Hold the Trolley Handle symbol helps operators communicate a simple but important passenger-safety instruction consistently. Clear signage can improve trolley control, reduce the risk of accidents and remind users of the correct behaviour when travelling on moving walkways or escalators.

This symbol is particularly suitable for hospitals, clinics, laboratories, food preparation areas, care environments, cleanrooms and other locations where hand disinfection is required. It should be displayed close to hand sanitiser dispensers, entrances or hygiene stations where users need to disinfect their hands before proceeding.

The M061 symbol is useful because contamination may be present even when hands appear clean. A prominent visual instruction helps remind employees, visitors and contractors to use an appropriate hand disinfectant at the correct stage of the hygiene procedure.

Using the M061 Disinfect Your Hands symbol supports consistent infection-control practices and makes mandatory hand hygiene requirements easier to recognise. It can help reduce cross-contamination, reinforce workplace hygiene procedures and encourage reliable use of hand disinfection facilities.

This symbol is particularly suitable for healthcare settings, laboratories, food preparation areas, shared workplaces, public facilities and other environments where controlling contamination is important. It should be positioned close to the surface, workstation or cleaning point where disinfection is required.

The M062 symbol is useful in locations where frequently touched or shared surfaces could contribute to the spread of contamination. By providing a clear visual instruction, it reminds staff and users to disinfect the relevant area before or after use according to the local hygiene procedure.

Using the M062 Disinfect Surface symbol supports consistent infection-control practices and makes surface hygiene requirements easier to recognise. It can help reinforce cleaning routines, reduce the risk of cross-contamination and provide a standardised mandatory instruction across different working and public environments.

This symbol is designed for ski resorts and may be displayed at chairlift boarding areas, ski-tows and conveyor belt access points. It should be positioned before users reach the boarding point so they have sufficient time to remove the strap safely.

The M063 symbol is particularly useful because a ski pole can become trapped or pulled unexpectedly while a skier is getting onto or leaving lift equipment. Removing the strap from the wrist helps prevent the pole from pulling on the arm if it catches on part of the lift, tow or surrounding equipment.

Using the M063 symbol gives ski operators a clear and standardised way to communicate an important boarding safety instruction. It can help reduce wrist and arm injuries, improve passenger preparation and make the correct handling of ski poles easier for users to understand before using the lift system.

This symbol is intended mainly for ski resorts and may be used at chairlift loading areas, ski-tows and conveyor belts. It should be displayed before the boarding point so skiers have enough time to place both poles into one hand before entering the lift or transport system.

The M064 symbol is particularly useful because carrying one pole in each hand can make boarding, travelling or unloading more difficult. Holding both poles together gives the skier greater freedom to steady themselves, operate equipment or use the lift safely while reducing the chance of the poles interfering with other passengers.

Using the M064 Hold Two Ski Poles with a Single Hand symbol provides ski operators with a consistent visual instruction for safer lift use. It can help improve boarding and unloading procedures, reduce pole-related injuries and make the expected behaviour clearer to skiers before they use the transport system.

This symbol is particularly suitable for ski resorts, amusement parks, leisure attractions, transport facilities and other environments where children may encounter equipment, moving vehicles, crowds or unfamiliar surroundings. It should be positioned at entrances, access points or before areas where adult supervision is required.

The M065 symbol is useful because children may not always recognise hazards or understand the safety procedures that apply in a particular environment. Requiring adult accompaniment helps provide additional supervision, guidance and assistance where younger users may otherwise be placed at greater risk.

Using the M065 Children Must Be Accompanied symbol gives operators a clear and standardised way to communicate an important supervision requirement. It can help reinforce safeguarding procedures, reduce the likelihood of children entering hazardous areas alone and make the need for adult accompaniment immediately recognisable.

This symbol is particularly suitable for factories, production lines, industrial machinery, conveyor systems, processing equipment and other installations containing moving mechanical parts. It should be positioned at access points, maintenance areas or near relevant isolation controls where personnel need to see the instruction before entering.

The M068 symbol is useful because machinery can remain hazardous even when normal operation has stopped. By requiring moving components to be locked in a safe position, the sign helps prevent unexpected movement while engineers, technicians or maintenance personnel are working nearby.

Using the M068 Lock Moving Mechanical Parts symbol supports safer maintenance procedures and reinforces the need for positive mechanical isolation before access. It can reduce the risk of crushing injuries, improve consistency in lockout practices and provide a clear visual reminder that machinery must be secured before repair work begins.

This symbol is suitable for luminaires, specialist lighting equipment, industrial lighting installations and other applications where a particular lamp requires shielding during operation. It should be positioned on the lamp, luminaire, packaging or close to the relevant equipment so that the requirement is clear before installation or use.

The M070 symbol is especially important where an unprotected lamp could expose people to excessive heat, ultraviolet radiation or fragments if the lamp shatters. A protective shield provides an additional barrier between the light source and anyone nearby, helping control these risks during normal operation.

Using the M070 Use Lamp in Luminaire with Shield symbol provides a clear mandatory instruction for installers, maintenance personnel and equipment users. It helps prevent incorrect lamp installation, reinforces the need to retain the protective enclosure and supports safer operation of lighting equipment that must not be used without suitable shielding.

This symbol is particularly suitable for tall appliances, cabinets, storage units, furniture and other equipment that could become unstable if pulled, climbed on or unevenly loaded. It may be used in homes, workplaces, schools, public buildings and other environments where anti-tip fixing is required as part of safe installation.

The M071 symbol is useful because a heavy object that tips over can cause serious injury, especially where children or other vulnerable users may be present. By drawing attention to the need for wall fixings, brackets or other approved restraint systems, it helps reinforce correct installation before the item is used.

Using the M071 Use Anti-Tip Restraints symbol provides a standardised way of communicating that securing the object is mandatory. It can help reduce tipping accidents, improve installation safety and remind installers and users that the restraint should remain correctly fitted throughout the life of the appliance or furniture.

This symbol is particularly suitable for industrial facilities, laboratories, hazardous-material areas, chemical processing sites and other workplaces where workers may leave a contaminated zone wearing protective clothing. It should be displayed at or close to the decontamination shower so the required action is clear before personnel move into a clean area.

The M072 symbol is useful because contaminated clothing can transfer hazardous material to other people, surfaces or areas if it is not cleaned correctly. Directing personnel through a decontamination shower helps remove or reduce contamination before protective clothing is taken off or the controlled area is left.

Using the M072 Use Decontamination Shower symbol supports consistent decontamination procedures and helps reinforce the separation between contaminated and clean environments. It provides a clear mandatory instruction for trained personnel and can help reduce secondary exposure or the spread of harmful substances beyond the work area.