2013年10月25日星期五

The proper use of protective devices

Selection of protective devices are based on the types of harmful substances in the environment, present in an amount determined, for use in different environments protective devices, the mutual matching varied. personal protective clothing in the field will be contaminated during use of hazardous substances on the site, if not worn correctly may result due to improper wear off process to bring new pollution and health hazards.

Guards should wear off within a dedicated space, according to the type of harmful substances decision to wear off guard space layout and disposal. The main structure or device shall include forced ventilation, air curtain, shower, drying, disinfection. Items should be in accordance with the contaminated area and clean area partitions placed to avoid cross-contamination. Serious threat of exposure pathogenic factor wear off, you can use Sequential oriented processes, carried out step by step in order to effectively guarantee exempt secondary pollution.

Wear protective equipment to wear off principle is based on the following settings:

(1) Personal protective equipment is clean and safe, to ensure proper use of the individual against pathogen hazards;

(2) Wear protective equipment before setting before the individual is relatively pollution wearing body;

(3) out from the contaminated site, the setting of the outer surface of the protective device has been contaminated.

a) for the existence of particles in the air pathogenic factor (toxic dust, smoke, fog, radioactive dust, pathogenic microorganisms, etc.), wear off guard when the order is:

Wear sequence: First, according to the rules wear respiratory protective devices (protective masks, half face full-face respirator, portable air respirator, etc.), check the tightness and wear a hat or hood, goggles, protective clothing, protective shoes (shoe), and finally to wear protective gloves.

Off sequence: First, remove the blindfold placed in disinfectant, and then removing gloves (off course glove hand can not touch the outer surface), protective clothing, hats, shoes (or shoes), and finally remove the respirator.

Wear off should pay attention to the following points: action to light, avoid harmful contamination raised; in the process of de-pollution of surface to minimize exposure in the environment of the area and time; removing contaminated disposable items should be loaded plastic bag Zhakou, two packaging.

b) A level protection device

Wear sequence

In the dress before protective clothing must be inspected and pressure testing to ensure that clothing in good condition; dress to have another person to help;

If the ambient temperature is low, in protective clothing inside coated eyepiece fogging agent

Protective clothing to wear long underwear, underwear on not to have pens, jewelry, badges and other items of protective clothing may be damaged;

Take off shoes (wear protective clothing comes with boots this step can be omitted when), sock trousers;

Check the gas type required to carry personal protection devices and their connections, but this time do not wear;

Coat your feet into boots, the boots down jacket hood above, will bring pants, stand up bar on the belt;

Open the air supply device, wearing masks, gas supply system is working properly identified;

The arms and head into protective clothing inside, up the zipper, close the zipper cover;

Assistant checks to determine whether the zippers and zipper cover taut mask vision is clear, all the air lines are closely integrated;

Ⅱ. Stripped order

There is sufficient air in the tank to leave the job site;

If the scene lifted the toxic chemicals, pathogenic microorganisms, to take off before the flush (or disinfectant) and other methods to remove the treatment material;

An wear protective clothing in the reverse order removing protective clothing, protective clothing off when not in contact with chemicals that may be contaminated on the place;

If possible, the right to conduct a comprehensive clean protective clothing, testing to prepare for re-use;

If the protective clothing can not be decontaminated, application security approach would discard protective clothing.

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