Dimensions (edit)
The choice and fitting of the mask is one of the key components of the operation of the described devices. Initially, you need to define both key head sizes. To find the horizontal size, you should draw a conditional line along the eyebrows and the most protruding part of the back of the head, 2-3 centimeters above the ears. To determine the vertical size, a line is drawn through the chin and crown.
Based on the measurement results, a suitable size is determined. In this case, we are talking about the growth of the gas mask, as well as the position of the stops of the headband straps. Now, on the vastness of the World Wide Web, you can easily find tables that greatly facilitate the sizing procedure.
If the sum of the two mentioned sizes reaches 1 210 mm, then the straps are set at 3-7-8.
For growth No. 2, with the total girths within 1215-1235 mm, the stops are set at 3-7-1, and if the total value of these dimensions reaches 1260 mm, then the straps should be fixed according to the 3-6-7 scheme.
With the third size, the following options are possible:
- in the range from 1,265 to 1,285 mm - 3-7-7;
- up to 1 310 mm - 3-5-6;
- more than 1315 mm - 3, 4, 5.
It is worth focusing on the numbering of the belts. In this situation, the first, second and third numbers are the frontal, temporal and buccal straps, respectively.
Carbon monoxide poisoning. Symptoms and first aid.
Well, at the end, a few words about carbon monoxide poisoning.
Symptoms
Poisoning occurs when carbon monoxide enters the bloodstream through the respiratory system. CO molecules bind hemoglobin, which loses its ability to deliver oxygen to tissues. Oxygen starvation begins.
This process has two stages.
At the first, there is a headache, shortness of breath, weakness, dizziness, nausea.
In this state, you can still move independently, but the person is already one step away from losing consciousness, which is fraught with what you know.
Urgently for fresh air. Then to the hospital.
The second stage - the person is already unconscious. There is an urgent need to stop exposure to carbon monoxide. Next are the standard resuscitation measures:
- lay on one side to prevent tongue sinking,
- give a sniff of a cotton swab with ammonia,
- if necessary, artificial respiration and indirect heart masses
- urgently call an ambulance
Stages of carbon monoxide poisoning.
Gas mask in case of fire.
But there are situations when a gas mask can save lives. And you should at least know about it.
In the event of a fire, and we will talk about this force majeure situation, it is necessary to leave the fire and smoke zone as quickly as possible.
If there is an emergency exit, the issue is resolved. But if you find yourself in a trap, which is most likely in an apartment building with one exit from the front door, then it becomes difficult to get out on your own without special protective equipment.
A dilemma arises: which is better - to stand on the balcony and wait for the rescue service in the person of firefighters, slowly poisoning yourself with smoke, or to take a risk and move down.
You cannot use the elevator, and the smoke in the stairwell is the risk of not reaching the saving exit.
The main enemy in a fire, except for an open fire, is carbon monoxide (carbon monoxide (CO)).
It is colorless and odorless. Poisonous. It is released in large quantities with incomplete combustion of combustion products. Incomplete combustion occurs when there is a lack of oxygen, which is typical when burning indoors, that is, during a fire.
That is, until the doors to the apartment, where there is a fire, are knocked out, and the flame has not flashed on the stairwell, there is a temptation to run downstairs. And like, be saved.
Tempting but deceiving.
The room is already filled with carbon monoxide in a lethal concentration.
Theoretically, you can hold your breath and fly down like a bullet. In practice, this will not work. Heart palpitations, breathing, stress, all in smoke, corrodes the eyes. You will breathe in two meters after the start of the movement.
Stove heating, if used improperly, is also fraught with this misfortune, but it is considered in special articles, as well as the waste of motorists in garages.
In the last two cases, you just need to follow basic security measures.
But in case of fire, protective equipment is needed. It is much easier to suffocate in this way than to burn out, which is actually confirmed by statistics.
Professional firefighters have special protective equipment that allows them to work fully in a smoky room, and an ordinary person, as a rule, lacks a few minutes to run out into the street and survive.
Here a gas mask comes to our rescue.
But!
ANTI-GAS IN STANDARD COMPLETE SET DOES NOT PROTECT AGAINST CARBON MONOXIDE!
The filter that comes with a gas mask is designed to protect against certain types of agents (toxic substances), the list of which does not include carbon monoxide.
Of course, if there is nothing, then a gas mask is better than a gauze bandage or wet towel. But he will not save you if you need to do a rather long way from some ninth floor.
Shelf life of gas masks
Each element of the gas mask has its own expiration date. GOST considers the product as a whole according to the characteristics. The fact does not negate the timely replacement of individual parts. For devices, 2 standards are currently in force - 22919-2014 and 124121-2015.
What is the difference:
Do you keep a gas mask at home?
Not really
The shelf life of a civilian gas mask when stored in a warehouse is 12 years, industrial means from 5 years. But with active operation, the devices fail in 1.5-2 years, often earlier. Regular replacement of filters is required, check of serviceability.
GP7
Functional civilian model. Differs in high wear resistance. The shelf life is 10-12 years. Successfully passes the survey after the end of this period. Often the shelf life is increased by another 2-2.5 years. Sometimes there is a factory mark "Ш". She talks about the appointment - for schoolchildren.
GP5
Old-style civilian gas mask. It was produced from the middle to the end of the last century. Today GP5 has lost its relevance. The device breaks down quickly. Shelf life 3-5 years. With active use, it does not exceed 1.5 years. It was this model that was actively used in training sessions. She was present in the OBZh offices.
According to laboratory studies, GP5 did not protect from vapors and gases many substances. Among them are methane, ammonia, isobutane, nitric oxide.
Storage
It must be remembered that a GPU, like any other device, has a definite full service life. The creators of the devices under consideration have developed special rules for operation and storage. And we are talking, in particular, about the following important points.
It is required to prevent damage to structural elements as much as possible
This applies not only to the filter module, but also to the shut-off devices of the inspiratory and expiratory blocks.
Particular attention should be paid to the intercom, the membrane of which should not get dirt, sand and dust.
It is necessary to prevent even the slightest ingress of moisture into the filter element. In other words, the gas mask should be kept as dry as possible.
All such devices designed to protect against harmful substances must be stored away from heat sources at least 3 meters.
It is worth considering that the shelf life of the described type of civil protective equipment guaranteed by the manufacturer is 12 years. At the same time, the maximum indicator in this case can reach 25 years from the date of release of the device. After this period, GP-7 is subject to mandatory replacement.
For an overview of the GP-7 gas mask, see below.
User manual
After you receive a gas mask of the appropriate size, you need to pay attention to its completeness. The algorithm of actions includes the following steps
- Remove the device from the package.
- Pull out the insert by placing it back in the box.
- Thoroughly inspect all parts of the structure to identify defects and incompleteness. In particular, we are talking about the presence of all buckles.
- Remove the screen and unscrew the outer saddle of the exhalation valve to check the condition of its petals. In parallel, the presence and integrity of the sealing element is checked.
- Examine carefully glasses of glasses and clamping elements for films (rings or cords) in order to identify cracks, chips and other damage. The clamping elements must be inserted into the corresponding grooves of the goggle assembly.
- Make sure that the inhalation assembly and the fairing fasteners are in good working order. A ring-shaped gasket must be present in the valve seat.
The next step will be the assembly of a civilian gas mask of the GP-7 series, carried out according to the manufacturer's instructions. The procedure is presented below.
Thoroughly wipe the front of the device inside and out with a damp, clean cloth or cotton wool.
Dry the treated mask completely.
Remove the rubber shield and unscrew the outer saddle to purge the expiratory block shut-off device.
Unscrew the cap, equipped with a sealing gasket, from the filter box, and from its bottom - the plug. After dismantling, all of the listed elements must be placed in a plastic wrap from under the front part and put into one of the compartments of the bag.
Putting the mask in one hand, connect the filter element with the other, screwing it in until it stops.
Remove the clamping elements (rings or cords made of rubber) from the seating grooves of the glasses block.
Wipe down the glass.
Open the NPN and remove the 2 anti-fog elements. The rest of the films together with the box must be tightly closed and placed in one of the compartments of the bag.
Gently taking the film, place it in the grooves of the glasses. In this case, it does not matter which side of the film will be turned to the glass.
Reinsert the hold-down cord or ring
In this case, it is important to carefully tuck them into the corresponding grooves.
With the second anti-fog film, you must do the same.
It is important to remember to be able to properly wear a gas mask. The procedure for putting on the device provides for a number of simple steps, namely:
The procedure for putting on the device provides for a number of simple steps, namely:
- place a gas mask in your hands, placing your thumbs inside;
- place the chin in the recess of the obturator formed in its lower part;
- put on the headgear by moving up and at the same time back;
- tighten and fix the cheek straps as much as possible;
- if even small distortions of the mask, obturator or belts are detected, they must be eliminated.
If there are distortions in the chin area, you will need to remove the gas mask and adjust the length of the corresponding straps.
Modifications
Today the GP-7 is already considered an outdated model of civilian gas masks. The new versions are more reliable, efficient, easier to use and more functional.
This protection has the following advantages:
- the presence of a coal-based catalyst;
- maximum resistance of FPC to corrosion and aggressive environment;
- tightness provided by the plasticity of materials;
- compact size and minimum weight;
- wide scope;
- the possibility of using in case of contamination of the environment with ammonia.
The GP-7BTV modification is distinguished by the maximum quality of transmitted sounds
Among other things, it is worth paying attention to such operational properties as increased strength and durability.
Peculiarities
Among other means of personal protection of the respiratory organs, the civilian gas mask GP-9 stands out favorably. Along with the lungs and respiratory tract, the device helps to protect the skin of the face and eyes. Visible mucous membranes will also be reliably covered. A special headband is used to hold it on the head. No ear protection is provided.
GP-9 will be able to stop:
- toxic substances;
- aerosol biological agents;
- radioactive dust;
- vapors of mercury and mercury in liquid form.
It supports protection from both special poisonous agents and chemically hazardous substances that have arisen as a result of accidents. Gas mask users can talk and listen to other people, including using various technical means. The device is intended for use by civilians and non-staff civil defense units in various emergency situations.
The mask of this gas mask is of the volumetric type. It is equipped with an "independent" obturator, which is formed in close connection with the mask body. Additionally, there is:
- spectacle block;
- valves for inhalation and exhalation;
- cowl;
- negotiation element;
- headgear.
The face block features a 5-point headband. The cheek attachment is quite solid. Its rigidity is increased by an original connection - a metal buckle that tightens itself. Additionally, the cheek straps are equipped with plastic clamps. The filtration and absorption box is shaped like a cylinder, with a height of 8 cm and a diameter of 11.2 cm.
The thread of the neck and cap on the filter-absorbing box is fully compatible with previously released gas masks. FPC material is deformed (not destroyed). In this case, testing is not required to detect probable defects. Some modifications of the front part are equipped with drinking devices.
A typical delivery set for GP-9 includes:
- anti-fog film;
- cuff for insulation;
- carry bag;
- rubber cords;
- instruction manual.
Technical specifications:
- GVW is 0.9 kg;
- overall dimensions - 28.5x21x10 cm;
- permissible temperatures: from -40 to +40 degrees.
What is it and what is it for?
Initially, it is worth paying attention to the history of the appearance of means for protection against various toxic substances. More than a century ago, back in 1915, German troops began to actively use chlorine and other agents during the conduct of hostilities.
Based on this, an immediate development of a device was required that protects against chlorine, ammonia and other poisons. It was then that Academician Zelinsky created a coal-based filter element for protective equipment.
Now one of the most common modifications is the GP-7. We are talking about civilian equipment, the main purpose of which is timely and most effective protection against negative effects:
- radiation;
- hazardous chemicals;
- bioaerosols.
A civilian gas mask of this type, like all similar devices, belongs to the category of filtering
It is important to take into account that the basic configuration does not provide for protection against ammonia, which requires a DPG-3 cartridge. The latter should be connected to the FPK, which is part of the standard set
It should be noted that ROM-PC cartridges can be used autonomously.
Having studied the instructions of the manufacturers, as well as the detailed descriptions of the analyzed devices and devices available on the World Wide Web, we can conclude that the basic configuration consists of:
- masks;
- FPK;
- 6 anti-fog glasses films;
- 2 clamping elements in the form of rings or rubber cords;
- 2 sealing elements;
- bags;
- instructions.
It should be noted that the described model has become an intermediate link in the line between GP-5 and GP-9 devices. Compared to its predecessor, it has the following advantages:
- minimum resistance of the filter box, which makes breathing easier;
- maximum valve reliability;
- maximally increased tightness and significantly reduced exposure of the mask during the operation of the apparatus;
- high level of voice transmission quality.
How to know if a gas mask is expired
With proper organization of the conditions of detention, the device does not show signs of deterioration for 10-12 years, it can be stored longer. In the absence of a suitable place, visible damage appears, signs of wear.
Instructions for determining the expired shelf life:
- Open the bag. Get out, inspect the helmet, breathing bag, and other structural elements for cracks, scratches.
- Check the tightness of the tubes, cartridge.
- Examine the breathing tubes, the integrity of the bags.
- Check the serviceability of the pressure valve, starting briquette.
Unsuitable personal protective equipment, like batteries, must be disposed of. They are written off by the storekeeper, accountant. The use of expired gas masks should not be allowed. This threatens the health and life of employees.
Sometimes new, unused products are allowed to use after the expiration date. For this, a technical check is carried out. On the basis of a survey with a positive conclusion, confirmation of serviceability, 2.5 years are added.
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Isolating gas mask IP 4MK
Regenerative insulating gas mask IP 4 MK is designed for complete isolation of the respiratory system from harmful environmental influences. The use of a gas mask is shown, in particular, with a lack of oxygen in the air. IP 4 modifications with the letter "M" should be considered as self-contained breathing apparatus for working underwater at depth. The principle of operation of the IP 4 MK insulated gas mask is that oxygen for human breathing is released from chemicals when CO2 and water are absorbed by a person. |
Complete set of the IP 4 insulated gas mask:
- face mask MIA-1, which in turn consists of a mask and an intercom
- five regenerative cartridges (RP-4, RP-7b) and a breathing bag (located inside a special frame)
- overpressure valve
- connecting tube
- reinforcing cuff
- anti-fog films and bags.
Technical characteristics of the insulating IP 4 gas mask:
working temperature, ºС | -40..+40 | |
time for work on one RP-4, no more, min | hard work | 45 |
easy job | 78 | |
rest | 180 | |
maximum permissible continuous operation time | 8 ocloc'k | |
daily use time within two weeks, no more, hours | 3..4 | |
time spent in a gas mask, no more, min | hard work | 30 (45*) |
easy job | 60 (75*) | |
rest | 180 | |
mask | weight, kg | 4 |
dimensions, mm | 340x163x290 | |
regenerative cartridge RP-4 | weight, kg | 2,2 |
dimensions, mm | 125x250 | |
breathing bag capacity, l | 4,5 | |
starting briquette | duration of action, sec | 60..160 |
amount of O2 released, l | 10 | |
valve resistance is too high. pressure at a flow rate of 1.5 dm3 / min, no more, Pa | 392 | |
overpressure valve closing pressure, not less, Pa | 98 | |
breathing resistance of an insulating gas mask, no more, Pa | 1176 |
* in brackets the time without skin protection is indicated. Longer can be sustained in light clothing and without gloves.
Modifications of the IP-4MK insulating gas mask
Isolating gas mask IP-4 and modification B for operation only on land, and modification M - also for water. Recently, IP-5 and IP-6 gas masks began to appear.
How to store a gas mask correctly
The protective filters of the gas mask deteriorate with excessive humidity. Personal protective equipment is negatively affected by high, low temperatures. You cannot drop an item on a shelf in a closet. Such storage is possible only for training species. The main goal is to understand the principle of work, to learn how to put on correctly, quickly in conditions of danger.
Consider how to properly store a gas mask. It is strictly forbidden to store near flammable liquids, chemicals. Gasoline, diesel fuel, antifreeze are not the best neighbors. You cannot place fire extinguishers in a warehouse with gas masks. They must be placed in accordance with fire safety regulations.
Storage conditions and rules
According to GOST standards, gas masks are stored in special rooms with emergency lighting and serviceable ventilation. Each piece is placed in a case / bag in a special way for quick removal and putting on.
Requirements for conditions:
Methods for storing gas masks
In addition, there is a special requirement for floors. Hard coating is used. Ideal is concrete. Cleanliness is maintained. Cleaning is carried out regularly, periodically deratization.
Deratization is a procedure for the destruction of insects, rodents. It is not always required, it is appointed if necessary. Most often it occurs in the summer season.
Where can you store at home:
- cool storage rooms;
- dry, ventilated basements;
- mezzanines in corridors, outbuildings.
Where the gas mask cannot be stored:
- Living spaces;
- garage;
- automobile.