GOST 12.4.251-2013 occupational safety standards system (ssbt). special clothing for protection against acid solutions. technical requirements (as amended)

Terms of use

In accordance with the current legislation of the Russian Federation and the standards established on the territory of our country, personal protective equipment must be issued to the following categories of workers:

  • foremen and foremen performing the duties of a foreman;
  • any construction and production workers whose duties in one way or another involve the risk of injury.

If an employee at the enterprise combines several specialties at once or performs various functions, he is equipped with personal protective equipment provided for each of these professions.

We draw your attention to the fact that any ZFO has its own operational period, it starts counting from the moment of their actual issue. The duration of this period is established by a decree of the Ministry of Labor of the Russian Federation and current industry standards and depends on the type of work performed.

The period of wearing workwear also includes the period of storage of winter clothing in a warm season.

Overview of types and classes of protection of workwear

There are several types and classes of protective clothing, depending on the type of threats.

Thermal - assumes protection from high temperatures, such a ZFO is especially relevant for welders and metallurgists. Commonly used in this area are overalls made of fire-resistant materials that cover the entire body of the worker.

Overalls can be like this:

Signal. Such ammunition is used by traffic police officers, as well as representatives of road services. Reflective stripes are the main element of such workwear, thanks to which maximum visibility is ensured in the dark.

Peculiarities

The ZFO was originally developed to protect employees of industrial and construction professions, whose work duties are fraught with danger to health and life.

  • Loose fit - overalls, trousers and jackets should not restrict movement, an employee, performing his job duties, should not feel discomfort.
  • Functionality - protective clothing can be additionally equipped with straps, carabiners, patch or built-in pockets to improve ergonomics.
  • Good physical characteristics - the ZFO should be easy to clean, have dirt-repellent properties and not get wet in the rain.
  • Thermal conductivity - when working in winter, the fabric should protect a person from heat loss, and in the summer it should absorb and remove all excess moisture, while maintaining full air exchange.
  • Durability - any workwear should be sewn from durable materials that will protect the employee from minor injuries and mechanical damage.
  • Unlike everyday clothes, overalls are sewn in such a way that one identical suit can be worn by two people of different builds, so visually they are usually “oversized”.

The main categories of the Western Federal District include the following.

Jumpsuits, jackets and trousers - they can be used both indoors and outdoors. Winter models are available from insulated materials, as well as options from lightweight fabrics.

Classification (marking) of personal protective equipment by protective properties

Classification (marking) of personal protective equipment by protective properties is adopted in accordance with GOST 12.4.103-83 "Occupational Safety Standards. Special protective clothing. Personal protective equipment for legs and arms. Classification ", GOST 12.4.013-85" SSBT. Safety glasses. General technical conditions ", GOST 12.4.023-84" SSBT. Protective face shields.General technical requirements and control methods ", GOST R 50849-96" Safety belts. General technical conditions ".

Protection against mechanical stress:

Mi - from abrasion;

Mp - from punctures, cuts;

MV - from vibration (for special footwear, hand protection);

MiMP - from abrasion, from punctures and cuts;

Moon 20 - from blows in the forefoot with an energy of 200 J (for special footwear).

Anti-slip protection:

Sl - from sliding on icy surfaces (for special footwear).

Protection against water and solutions of non-toxic substances:

B - from water, solutions of non-toxic substances (for shoes);

VN - waterproof (for workwear and hand protection);

By - waterproof (for workwear and hand protection).

High temperature protection:

Tr - from sparks, splashes of molten metal, scale;

Тп400 - from contact with heated surfaces from 100 ° С to 400 ° С (for overalls and hand protection).

Low temperature protection:

Тн - from low air temperatures (for special footwear);

Тн20 - from temperatures to minus 20 ° С (for special footwear);

Тн30 - from temperatures up to minus 30 ° С (for special footwear).

Protection against acid solutions:

K50 - from acids of concentration from 20 to 50% (for sulfuric acid) (for workwear, safety footwear and hand protection);

K20 - from acids of concentration up to 20% (for sulfuric acid) (for workwear, footwear and hand protection).

Alkali protection:

Sch20 - from alkali solutions up to 20% concentration (sodium hydroxide) (for workwear, footwear and hand protection).

Protection against general industrial pollution:

З - from industrial pollution (for workwear and safety footwear).

Protection against harmful biological factors:

BM - against microorganisms (for workwear, footwear and hand protection).

Signal protection:

Co - for workwear;

C - for hand protection.

Electric current protection:

En - with voltage up to 1000 V (for safety footwear and hand protection).

Eye protection:

О - open goggles;

G - closed sealed goggles;

ЗП - closed goggles with direct ventilation;

ZNG - closed protective sealed goggles.

Face protection:

NBT - head-mounted shields with a colorless transparent shock-resistant body;

NS - head-mounted shield with a mesh casing;

KN - head-mounted shield with an opaque body;

KS - mesh shield with fastening on the helmet.

Protection against oil, oil products, oils and fats:

Nm - from petroleum oils and products of heavy fractions (for workwear, safety footwear and hand protection).

Dermatological protective agents:

Nm - protective and prophylactic agents against oil and grease;

Mn - skin cleaners from petroleum products;

BM - protective and prophylactic agents against microorganisms.

Protection against toxic substances:

Yat - from solid toxic substances;

Yazh - from liquid toxic substances;

Yaa - from aerosols of toxic substances;

Yazhat - from liquid, solid toxic substances and aerosols.

Protective equipment against several factors:

Тп400Тр - from contact with heated surfaces from 100 ° С to 400 ° С, as well as from sparks, splashes of molten metal and scale (for workwear and hand protection);

ЗМи - from industrial pollution and from abrasion;

СлТн30 - from sliding on icy surfaces and from temperatures up to minus 30 ° С;

K20Shch20 - from acids with a concentration of up to 20% and from solutions of alkalis with a concentration of up to 20%;

K50Shch20 - from acids with a concentration of up to 50% and from solutions of alkalis with a concentration of up to 20%;

VNK20 - from water permeability and from acids with a concentration of up to 50%;

VNK50 - from water permeability and from acids with a concentration of up to 50%;

TrTn - from sparks, splashes of molten metal and scale, as well as from low temperatures.

December 28th, 2015 |

Main conclusions

The classification of personal protective equipment is a very voluminous topic, since each group includes a number of subgroups, but knowing its industry, it is necessary to determine the degree of exposure to harmful substances on the human body and, based on this, begin the selection.

It is not advisable to reduce the level of protection of personal protective equipment, because during the production of hazardous work, a negative impact can lead to the development of occupational diseases, injuries or deaths.

And the use of protective equipment should provide the employee with the necessary protection and be safe in itself, and the latter is confirmed by the passage of mandatory certification TR CU 019/2011.

I wish you safe and efficient work!

flwn.imadeself.com/33/

We advise you to read:

14 rules for saving energy