For the protection of water penetration, substances that can block moisture can be used. The moisture barrier material protective clothing should be able to be preserved completely in the presence of water vapor through the outer clothing. So as not to hinder the evaporation of sweat. Appropriate clothing can enable firefighters to work long hours in dangerous situations. However, it is not possible to compare the level of performance achieved in the laboratory with the level of protection in practical applications, because the variability under high temperature hazard conditions is large.
Additional personal protective equipment is to protect the head, hands and feet, and in many firefighting conditions must wear a respirator. Additional equipment must be worn in specific situations, such as chemical spills. In these cases, it is necessary for the user to combine personal protective equipment and one type of equipment with another to improve protection.
Because the concept of firefighters' protective clothing is built on a level of use, the firefighter needs to be trained to understand the suitability of each specific occasion. He may need to add additional clothing to specific tasks. He should also know when is the limit for clothing use and what measures should be taken. This may be to define a defined area, which is a lower level of flame retardant multi-layer thermal protection level and which alerts the wearer to advance warning of potential hazards.
In this standard, the basic safety requirements are based on the level of protection that firefighters' protective clothing can perform in general firefighting operations. This does not prevent a designated garment from having a higher performance level when used in particularly vulnerable parts of the body or in specific hazards. For firefighter protective clothing in other standards there are different performance levels for special applications, such as forest fire fighting and access to fire.
Scope
This standard describes the test methods and minimum requirements for clothing to be worn when there are heat and fire hazards in firefighting work and related activities. This standard covers the design of general clothing, and the minimum performance level of materials. Performance levels may have to be applied to one or more garments to be effective.
However, it does not include special clothing for use in high-risk situations, such as clothing for entering a fire, or clothing for long-term fire-fighting work under ambient high temperature conditions, such as forest fire fighting. It does not include head and hand protection, such as against chemical, biochemical, radiation and electrical hazards. These aspects may be addressed in other standards.
general reference
This European Standard incorporates by convention or non-conventional reference in other editions, this general reference at the appropriate place under testing and by reference in the edition at which point it is listed below. References to conventions, and subsequent amendments are only amendments or amendments to the contents incorporated therein, and are amendments to the requirements of these editions of the European Standard. Basic references will be mentioned in the latest version.
EN 20811 Textile fabrics - Determination of permeability to water - Test for hydrostatic pressure (ISO 811:1981)
ISO 3175 Textiles -- Determination of dimensional changes and dry cleaning per vinyl chloride -- Mechanical methods
ISO 4674:1997 Coated fabrics and rubber or plastics - Determination of tear strength
EN 24920 Textile fabrics - Determination of surface moisture resistance of fabrics (spray test) ISO 4920:1981).
ISO 5077 Textiles - Determination of dimensional changes under washing and drying.
ISO 5081 Textile fibers - Woven fabrics - Determination of breaking strength and elongation, (strip method)
ISO 6330:1984 Textiles - Tests for domestic washing and drying procedures for textiles
EN340 Protective clothing - general requirements
EN 366:1993 Protective clothing - Protection against heat and fire - Test method: Determination of heat transfer and flame contact
EN 368 Protective clothing - Protection against liquid chemicals - Test method: Resistance to liquid penetrating materials.
EN 532 Protective clothing - Protection against heat and fire - Test method for limiting the spread of fire
EN 31092 Textile mouths - Physical effects - Resistance to heat and water vapour tested under stable conditions (test of sweat protection) (ISO 11092:1993)
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