Showing posts with label goggles. Show all posts
Showing posts with label goggles. Show all posts

Wednesday, 20 April 2011

Safety eyewear:

Eyesight safety provision as well as wearing is a requirement under the Personal Protective Equipment at Work Regulations.

Eyesight Protection
needs to be employed around dangerous environments wherever there is actually a danger regarding projectiles harming the eyes.

Our own selection of Bolle and Peltor Safety Glasses fulfils the requirements associated with EN166, the European Norm with regard to Industrial Eye Protection. This not simply incorporates requirements with regard to liquids, airborne dirt and dust and molten metal protection but additionally impact performance with all of our Bolle and Peltor Safety Glasses ideal for withstanding low energy impact.

Bolle and Peltor Safety Glasses are only able to be offered as low energy impact eye protection. This is primarily because Safety Glasses sit on the wearer’s nose where almost all impact energy needs to be absorbed.

If greater impacts are anticipated then Safety Goggles as well as Safety Face shields will have to be considered.

Bolle Safety Glasses marked EN166 1F satisfy this particular requirement and are also optically correct consequently they might be worn for many hours with no danger associated with headaches.

Prior to you buying the kind of Safety Eyewear you need you'll want to initially think about the kind of hazard being encountered and the ideal type of eye protection suitable for that hazard.

Types of hazard:

Mechanical - Flying particles, airborne dirt and dust or even molten metal.

Chemical - Gases, fumes or perhaps liquid splash.

Radiation - Temperature (Infra-red), uv light or even glare.

Laserlight - Over a broad spectrum of wavelengths from Uv to Infra-red.

Category of eye protection:

Safety Glasses - Comfortable and offered in a number of designs are not going to keep out airborne debris, gas or even molten metal. Bolle designs are obtainable with prescription lenses.

Safety Goggles - Can offer protection for all those forms of hazards. May possibly be put on over spectacles.


Safety Face Shield - Protects the face area along with the eyes nonetheless will not keep out airborne dirt and dust or even gas. Comfortable to make use of for lengthy periods.

In cases where high-impact is anticipated then Safety Goggles or even Safety Face shields will be much more suitable as they distribute the actual force associated with the impact across the face instead of the nose which happens to be exactly what our Bolle and Peltor Safety Glasses accomplish.

Different shades of lenses are available for specialist sectors including Foundries, Glass working as well as with Welding. Bolle also have a comprehensive and high quality range of welding masks for this purpose.

Various lens shades may also improve eyesight with regard to jobs such as examination or low light conditions.

Tuesday, 24 June 2008

Chainsaw Safety Clothing

Regulations generally recommend that chainsaw users wear protective clothing, also known as Personal Protective Equipment or PPE, while operating chainsaws. There is general agreement worldwide on what clothing is suitable, but local jurisdictions have specific rules and recommendations.

Clothing Types

Helmet

The helmet attempts to protect the user's head against impact with the cutter bar of the chainsaw should a kickback occur. This can only be successful if the chain brake has operated to stop the cutter chain. A chain running at full speed easily cuts the helmet.

The helmet also protects against impacts from small falling objects, such as a dead branch from a tree being felled.

The image shows a helmet which integrates visor and ear defenders into one unit. This is a very popular arrangement with chainsaw users.

In the EU, the helmet must meet the requirements of EN397.

Visor or Goggles

A visor or goggles reduce the chance of chips penetrating the user's eyes.

The relatively flimsy visor, with imperfect coverage of the face, is considered acceptable because the chips produced by chainsaws are of relatively uniform size and speed. Unlike other woodworking tools, a chainsaw produces little or no sawdust, only chips. The chips are too large to fit through the visor's mesh.

Some chainsaw users prefer conventional safety goggles. The choice may depend on the environment. The visor provides better ventilation for hard work in hot weather.

In the EU, a visor must comply with EN1731, or goggles must comply with EN166.

Ear defenders

Ear defenders and ear plugs attenuate noise to levels that cause little or no damage to the user's hearing. The chainsaw is very loud, typically 115 dB.

In the EU, ear defenders must comply with EN352.

Trousers

Special fabrics have been developed for chainsaw clothing, and this development is still very active. Conventional fabric is useless at protecting against a running chainsaw, being immediately cut through.

There is a real struggle between making a fabric proof against more violent impact, and making it light, flexible and comfortable enough for the user. Clothes which make the user too hot, or which prevent the user moving easily, are a safety problem in themselves. A worker suffering from heat exhaustion is not safe. Extra fabric layers can be added to clothing to improve cut resistance, but clothes which cannot be cut at all by a powerful saw are impractical, even with modern fibres. What is worse saw and chain technology seems to be outstripping fabric technology. High power saws with aggressively cutting chains are almost impossible to protect against.

A classification scheme has been developed in the EU to rate trousers, and fabric in general, for protection against cutting.

Chainsaw Fabric Classification

Class

Max chain speed m/s

0

16

1

20

2

24

3

28

The chain speed is specified in the manual for a chainsaw. Higher class trousers cost more and are heavier, so there is an advantage to choosing the trousers to match the saw.

There are two standard types of trousers, Type A and Type C. Type A protects only the front of the legs, and can be supplied not as full trousers but as chaps, worn over conventional work clothes. Types C gives protection all round the legs and are almost always worn as ordinary trousers; not over another garment. In the EU, most workers choose to wear type C trousers.

Chainsaw protective fabric works on a number of principles. The outermost layer can be made both tough and slippery, so that the chain skids across it rather than cutting in. Lower layers of fabric can be tough to cut, absorbing saw power. The final defence is that long fibres of the protective fabric (commonly Kevlar) are drawn out by the running saw, not cut through. These long fibres travel with the chain to the saw drive sprocket, where they jam the mechanism and stall the saw. After this, the saw has to be taken apart for cleaning out. Chainsaw protective trousers in the EU must comply with EN381-5.

Gloves

Chainsaw gloves have cut-proof fabric protection like that for trousers, but only on the back of the left hand. It's especially important that work gloves are flexible, which limits how much padding they can have. Experience has shown that most chainsaw injuries to the hands occur on the back of the left hand.

In the EU, chainsaw gloves must comply with EN381-7.

Boots

Chainsaw boots are based on ordinary steel-toe boots, but have layers of chainsaw protective fabric on the exposed front surfaces. They are available in lace-up leather or rubber Wellington boot versions.

In the EU, chainsaw boots must comply with EN345-2.

Logos for Fabric

Chainsaw Logo

In the EU, chainsaw trousers, boots and gloves (the items containing chainsaw protective fabric) must carry a special chainsaw logo. This shows that the fabric is of a type tested to protect properly, and also shows the class of protection, the rated maximum chain speed.

Additional Personal Protective Equipment (PPE)

First Aid Kit

In the UK, workers are required to carry a first aid kit containing at least a large wound dressing.

Whistle

In the UK, workers are recommended to carry a whistle to call for help if they are injured. Colleagues may be close by, but unable to hear over the noise of chainsaw(s) still running. The whistle tends to overcome this.

Wednesday, 5 December 2007

Eyes are Irreplaceable!

Always wear eye protection when grinding, spray painting, drilling, welding, sawing, working in a dusty environment, or handling chemicals. Develop the habit of putting on safety glasses or goggles whenever you work with hand or power tools.

Several types of eye protection devices are available:

Safety glasses

Standard eyeglasses and sunglasses provide frontal protection only. If you wear glasses, make sure they have impact resistant lenses. Safety glasses have heavier lenses that can withstand more shock than ordinary lenses.

Goggles

Plastic goggles protect the eyes against front and side impact. Unvented or chemical splash goggles also offer protection against chemical vapours and liquids.

Always wear goggles when striking hardened metal tools and hardened metal surfaces. This will protect the eyes against flying metal chips.

Face Shields

Face shields protect the face against splashing, dust, and chaff. However, standard designs offer very little protection against impact.

If impact protection is needed, wear safety glasses or goggles under the face shield. Special impact-resistant shields are also available.

Always wear a helmet when arc welding!


The eyes, face, and neck need protection against the burning rays of the arc, and from the splatter of molten metal and slag. To protect vision, make sure the welding helmet has a coloured lens with at least a No. 10 shade when welding up to 200 amps. (Darker shades are needed when using higher currents. Get specialist advice)

Never strike an arc before your helmet is on. Never look at an arc from any distance with naked eyes while someone else is welding.

Remember to use eye protection when chipping slag. The slag is often still hot and breaks away as sharp pieces.

Oxyacetylene welders

The lenses in welding goggles should be a No.5 or 6 grade for welding and cutting, and a No.3 or 4 shade for brazing.

Sun protection also important

Always wear sunglasses to protect you eyes while working outdoors to prevent damage by the sun’s ultraviolet rays.

Don't take your eyesight for granted!

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