Protective Clothing & Equipment
 
General
Merchant Shipping Regulations require employers to ensure that every employee engaged in a specified work process, or who may be at risk from such a process, is supplied with suitable protective clothing and equipment. Overalls, gloves and suitable footwear are the proper working dress for most work about the ship but these may not give adequate protection against particular hazards in particular jobs.

Specific recommendations for the use of special protective clothing and equipment will also be found in certain sections of the Code but there will be other occasions when the need for such special protection can only be determined at the time by the officer in charge of the particular operation.

Protective clothing or equipment does nothing to reduce the hazard, it merely sets up a frail barrier against it. The first step in injury prevention should be the elimination of the hazard to the extent that is reasonable and practicable. Personal protective clothing and equipment should be relied upon to afford protection against the hazards that remain.

Defective or ineffective protective equipment provide no defence. It is therefore essential that the correct items of equipment are selected and that they are properly maintained at all times. The manufacturer's instructions should be kept safe with the relevant apparatus and when necessary referred to before use and when maintenance is carried out. The equipment should be kept clean and should be disinfected as and when necessary for health reasons.

A responsible officer should inspect each item of protective equipment at regular intervals and in all cases before and after use. He should ensure that it is returned and properly stowed in a safe place. Personal protective clothing and equipment should always be checked by the wearer each time before use.

All personnel who may be required to use protective equipment should be properly trained in its use and advised of its limitations.

Personal protective clothing and equipment can be classified as follows: Head protection (safety helmets, hair protection); Hearing protection; Face and eye protection (goggles and spectacles, facial shields); Respiratory protective equipment (dust masks, respirators, breathing apparatus); Hand and foot protection (gloves, safety boots and shoes); Body protection (safety suits, safety belts, harnesses, aprons); Protection against drowning (lifejackets, buoyancy aids and lifebuoys).
 
Head protection
Safety helmets
Head Protection Objects falling from a height present a hazard against which safety helmets are most commonly provided. Other hazards include abnormal heat, risk of a sideways blow or crushing, or chemical splashes. These four different types of common risk are given as a guide only and are not intended to be comprehensive.

Since the hazards are so varied in type it will be appreciated that no one type of helmet would be ideal as protection in every case. Design details are normally decided by the manufacturer whose primary consideration will be compliance with an appropriate standard.

The shell of a helmet should be of one piece seamless construction designed to resist impact. The harness or suspension when properly adjusted forms a cradle for supporting the protector on the wearer's head. The crown straps help absorb the force of impact. They are designed to permit a clearance of approximately 25 mm between the shell and the skull of the wearer. The harness or suspension should be properly adjusted before a helmet is worn.

Bump caps
A bump cap is simply an ordinary cap with a hard penetration-resistant shell. They are useful as a protection against bruising and abrasion when working in confined spaces such as a main engine crankcase or a double bottom tank. They do not, however, afford the same protection as safety helmets and are intended only to protect against minor knocks.

Hair nets and safety caps
Personnel working on or near to moving machinery have always to be on their guard against the possibility of loose clothing, jewellery, or their hair becoming entangled in the machinery. In the case of long hair, hair nets or safety caps should be worn where any risk of entanglement exists.
 
Hearing protection
All persons exposed to high levels of noise, e.g. in machinery spaces, should wear ear protectors of a type recommended as suitable for the particular circumstances. Protectors are of three types - ear plugs, disposable or permanent, and ear muffs.

The simplest form of ear protection is the glass-down ear plug. This type however has the disadvantage of limited capability of noise level reduction. Ear plugs of rubber or plastic also have only limited effect, in that extremes of high or low frequency cause the plug to vibrate in the ear canal causing a consequential loss in protection.

In general, ear muffs provide a more effective form of hearing protection. They consist of a pair of rigid cups designed to completely envelope the ears, fitted with soft sealing rings to fit closely against the head around the ears. The ear cups are connected by a spring loaded headband (or neck band) which ensures that the sound seals around the ears are maintained. Different types are available and provision should be made according to the circumstances of use and expert advice.
 
Face and Eye Protection
In selecting eye and combined eye and face protectors, careful consideration should be given to the kind and degree of the hazard, and the degree of protection and comfort afforded.

The main causes of eye injury are:
(a) infra-red rays--gas welding;
(b) ultra-violet rays--electric welding;
(c) exposure to chemicals;
(d) exposure to particles and foreign bodies.
Protectors are available in a wide variety, designed to British Standard specifications, to protect against these different types of hazard.

Ordinary prescription (corrective) spectacles, unless manufactured to safety standard, do not afford protection. Certain box-type goggles are so that they can be worn over ordinary spectacles.
 
Respiratory protective equipment
Respiratory protective equipment of the appropriate type is essential for protection when work has to be done in conditions of irritating, dangerous or poisonous dust, fumes or gases. The equipment may be either a respirator, which filters the air before it is breathed, or breathing apparatus which supplies air or oxygen from an uncontaminated source. The selection of the correct respiratory protective equipment for any given situation requires consideration of the nature of the hazard, the severity of the hazard, work requirements and conditions, and the characteristics and limitations of available equipment. Advice on selection and the use and maintenance of the equipment is contained in the relevant British Standard, which should be available to all those concerned with the use of respiratory protective equipment on board ship.

It is most important that the face-piece incorporated in respirators and breathing apparatus is fitted correctly to prevent leakage. The wearing of spectacles, unless adequately designed for the purpose, or of beards and whiskers is likely to adversely affect the face seal.

Respirators
The respirator selected must be of a type designed to protect against the hazards being met.

The most common type is the dust respirator, affording protection against dusts and aerosol sprays but not against gases. There are many types of dust respirator available but they are generally of the ori-nasal type, i.e. half-masks covering the nose and mouth. Many types of light, simple face masks are also available and are extremely useful for protecting against dust nuisance and non-toxic sprays but should never be used in place of proper protection against harmful dusts or sprays.

The positive pressure powered dust respirator incorporates a face-piece connected by a tube to a battery-powered blower unit carried by the wearer to create a positive pressure in the face-piece and thus make breathing easier and reduce face-seal leakage.

The cartridge-type of respirator consists of a full face-piece or half mask connected to a replaceable cartridge containing absorbent or adsorbent material and a particulate filter. It is designed to provide protection against low concentrations of certain relatively non-toxic gases and vapours.

The canister-type of respirator incorporates a full face-piece connected to an absorbent or adsorbent material contained in a replaceable canister carried in a sling on the back or side of the wearer. This type gives considerably more protection than the cartridge type.

The filters, canisters and cartridges incorporated in respirators are designed to provide protection against certain specified dusts or gases. Different types are available to provide protection against different hazards and it is therefore important that the appropriate type is selected for the particular circumstances or conditions being encountered. It must be remembered, however, that they have a limited effective life and must be replaced or renewed at intervals in accordance with manufacturers' instructions .

Respirators provide NO protection against oxygen deficient atmosphere. They should never be used to provide protection in confined spaces such as tanks, cofferdams, double bottoms or other similar spaces against dangerous fumes, gases or vapours. Only breathing apparatus (self-contained or airline) is capable of giving protection in such circumstances.

Breathing apparatus
The type of breathing apparatus to be used when entering a space that is known to be, or suspected of being deficient in oxygen or containing toxic gases or vapours is given in section "Entering Enclosed or Confined Spaces" - 'Breathing Apparatus and Resuscitation Equipment'.

Breathing apparatus should not be used under water unless the equipment is suitable for the purpose, and then only in an emergency.

Resuscitators
It is recommended that resuscitators of an appropriate kind should be provided when any person may be required to enter a dangerous space.
 
Hand and Foot Protection
Gloves
The correct type of gloves should be chosen according to the hazard being faced and the kind of work being undertaken. For example, leather gloves are generally best when handling rough or sharp objects, heat-resistant gloves when handling, hot objects, and rubber, synthetic or PVC gloves when handling acids, alkalis, various types of oils, solvents and chemicals in general. The exact type selected will depend upon the particular substance being handled, and in these cases expert advice should be followed.

Footwear
Foot injuries most often result from the wearing of unsuitable footwear rather than from failure to wear safety shoes or boots. It is nevertheless strongly advisable that all personnel whilst at work on board ship, wear appropriate safety footwear.

The hazards commonly encountered cause injury as a result of impact, penetration through the sole, slipping, heat and crushing. Safety footwear is available which is designed to protect against these or other specific hazards, manufactured to various British Standards appropriate to the particular danger involved.
 
Protection from falls
Protection from falls All seamen who are working aloft, outboard or below decks or in any other area where there is a risk of falling more than 2 metres, should wear a safety harness (or belt with shock absorber) attached to a lifeline. Likewise if a vessel is shipping frequent seas, persons on deck should wear a harness and, where practicable, should be secured by lifeline as protection from falls and from being washed overboard or against the ship's structure.

Inertial clamp devices allow more freedom in movement.
 
Body protection
Special outerwear may be needed for protection when the seaman is exposed to contact with particular contaminating or corrosive substances. This apparel should be kept for the particular purpose and dealt with as directed in the relevant sections of this Code.
 
Protection against drowning
Where work is being carried out overside or in an exposed position where there is a reasonably foreseeable risk of falling or being washed overboard or where work is being carried out in or from a ship's boat a lifebuoy with sufficient line should be provided. In addition and as appropriate a lifejacket or buoyancy aid should be provided.
 
Ends





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