Gas masks GP-5: description, characteristics and scope

GP-5 gas masks are manufactured in the territory of the Russian Federation, although there are older models that were produced even in the times of the USSR. These gas masks are intended for individual use and protect important human organs from various toxins, microbes, poison gases and other harmful substances that may be in the air.

Specifications

Before choosing gas masks GP-5 or GP-7, it is necessary to study the technical characteristics of at least one of them. For GP-5 models, the main technical characteristics are:

• Weight - 900 g;
• Mass of gas-protective box - 250 g;
• The mass of the front part of the gas mask, depending on the configuration: ШМ-62 - 430 g, ШМ-62У - 400 g;
• Sizes of gas masks GP-5 - 12x12x27 cm;
• The size of the gas-insulated box - 11,2х8 cm (diameter and height);
• Resistance to air - 30 l / min, and also: a gas-masking box - 1.9 cm of water. Pillar; Frontal part - on inhalation <0.2 cm of water. Column, and on exhalation <1 cm of water. Pillar; The gas mask itself - on inhalation and on exhalation <1 cm of water. Pillar.

In addition, each gas-to-gas box, like its front side, must have excellent tightness. This parameter is easily checked. To do this, put the gas mask in a water bath and wait for eight to ten seconds. If air bubbles do not appear during this time, then the gas mask is suitable for protection.

Principle of operation and design features

The device of gas masks GP-5 is created on the principle that any harmful mixtures with which air is contaminated are absorbed by special absorbing filters. In this case, the contaminated air is not simply absorbed by the filter, but also cleansed, which allows a person to breathe without harm to health. The main distinguishing feature of any gas mask GP-5 is that it does not have a connecting corrugated tube, which is completed with most GP models. That is, the front part of the protective equipment is directly connected to the gas mask box.

In addition, gas masks GP-5 have a more convenient design, unlike analogues. A more convenient design allows you to take off and dress the protective equipment at times faster. The constructions of the membrane for conversations, the system of the valves of respiration are also improved.

All this and much more not only increases the protection of gas masks, but also extends the period of their operation.

Choosing a gas mask

Before using a gas mask in practice, it is necessary to choose it correctly under the parameters of a person's face, and also to test the suitability of the protective equipment. To select the appropriate size of the gas mask mask, you must first measure the head along the circumference, from the crown to the chin. The dimensions that have turned out can be checked with the proposed list below:

• Less than 630 mm - mask of zero size (or mask 0);
• From 635 to 655 mm - the mask of the first size (or mask 1);
• From 660 to 680 mm - mask 2;
• From 685 to 705 mm - mask 3;
• More than 705 mm - the fourth size of the mask.

If the gas mask fits snugly to the face, nowhere is there any gaps, then it is selected correctly and fully protects the owner from the polluted air. But before you start using a gas mask, you should check its suitability. If there are insignificant cracks or punctures on the mask, the glasses of the glasses are broken or damaged, and the gas-mask box has dents, then such a gas mask is considered unsuitable and is strictly forbidden for use in an unsafe environment.

Application in practice

The selected gas masks GP-5 are used in the following positions:

• "Marching";
• "ready";
• "Militant".

A "marching" position is a bag with a gas mask over your shoulder so that you can easily adjust the buckles of the shoulder strap and check the reliability of the protective equipment while walking. To do this, it is recommended to hold the bag on the left side so that its upper edge is approximately level with the waist belt. In some cases, it is allowed to wear a gas mask not in a bag, but on a belt.

The "ready" position is a gas mask in hands, ready for further operation.

In order to transfer the remedy to a "combat" position, it is necessary to wait for the appropriate command or, after sensing the threat yourself, put on a gas mask on the head.

Recommendations for care and storage

In order to keep the GP-5 gas masks for a long time, it is necessary to adhere to some simple rules. For example:

• Storage is possible only in a special bag, assembled to avoid any damage;
• Keep the gas mask away from heaters;
• Do not store the protective equipment in damp areas, or near moisture;
• From dust and dirt, in the first place, it is necessary to protect the negotiating membrane, the valves of inspiration and exhalation;
• Do not touch the outside of the unit with unprotected hands after exiting the contaminated environment.

In addition, for personal safety reasons, it is forbidden to touch the outer parts of the protective equipment with your bare hands after the gas mask has been in the contaminated environment.