Protective clothing - flame retardant protective clothing
1 Scope
This standard specifies the grading, requirements, test methods, inspection rules, identification, packaging and storage of flame retardant protective clothing.
This standard applies to flame retardant protective clothing used in places with open flames, sparks, flammable substances and flashover risks.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 250 Textiles - Tests for colour fastness - Grey scale for assessing change in colour
GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1:Free and hydrolyzed formaldehyde(water extraction method)
GB/T 3291.3 Textiles -Terms of textile material properties and test - Part 3: General
GB/T 3916-2013 Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester
GB/T3917.3 Textiles - Yarns from packages - Determination of single end breaking force and elongation at break using constant rate of extension (CRE) tester
GB/T 3920 Textiles - Tests for colour fastness - Colour fastness to rubbing
GB/T 3921 Textiles - Tests for colour fastness - Colour fastness to washing with soap or soap and soda
GB/T 3922 Textiles - Tests for colour fastness - Colour fastness to perspiration
GB/T 3923.1 Textiles - Tensile properties of fabrics - Part 1: Determination of maximum force and elongation at maximum force using the strip method
GB/T 4802.1 Textiles - Determination of fabric propensity to surface fuzzing and to pilling - Part 1: Circular locus method
GB/T 4802.3 Textiles - Determination of fabric propensity to surface fuzzing and to pilling - Part 3: Pilling box method
GB/T 5296.4 Instructions for use of products of consumer interest - Part 4: Textiles and apparel
GB/T 5453 Textiles - Determination of the permeability of fabrics to air
GB/T 5455-2014 Textiles - Burning behaviour - Determination of damaged length, afterglow time and afterflame time of vertically oriented specimens
GB/T 7573 Textiles - Determination of pH of the aqueous extract
GB/T 7742.1 Textiles - Bursting properties of fabrics - Part 1:Hydraulic method for determination of bursting strength and bursting distension
GB/T 8628 Textiles - Preparation, marking and measuring of fabric specimens and garments in tests for determination of dimensional change
GB/ T8629-2017 Textiles - Domestic washing and drying procedures for textile testing
GB/T 8630 Textiles - Determination of dimensional change in washing and drying
GB/T 12704.1 Textiles - Test method for water-vapour transmission of fabrics - Part 1: Desiccant method
GB/T 12903 Personal protective equipment terminology
GB/T 13640 Size designation of protective clothing
GB/T 17592 Textiles - Determination of the banned azo colourants
GB 18401-2003 National general safety technical code for textile products
GB/T 20097 Protective clothing - General requirements
GB 20653 Protective clothing - High visibility warning clothing for professional use
GB/T 21294 Testing methods of physical and chemical performance of garments
GB/T 23344 Textiles - Determination of 4-aminoazobenzene
GB/T 38302-2019 Protective clothing - Thermal protective performance test method
FZ/T 70007 Method of test for determining the underarm seam strength of knitted garments
FZ/T 81007 Casual wear
ISO 13506-1 Protective clothing against heat and flame-part 1: Test method for complete garments-Measurement of transferred energy using an instrumented manikin
ISO 13506-2 Protective clothing against heat and flame-part 2: Skin burn injury prediction - Calculation requirements and test cases
3 Terms and definitions
For the purposes of this document, the terms and definitions in GB/T 12903 and GB/T 3291.3 as well as the followings apply.
3.1
flame retardant protective clothing
protective clothing that can prevent itself from igniting, burning with or without flame within certain time after contacting with flames and hot objects.
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3.2
afterflame time
persistent flame burning time of material after the ignition source is removed under specified test conditions
Note 1: in seconds (s).
Note 2: rewritten from definition 2.145 in GB/T 3291.3-1997.
3.3
afterglow time
persistent flameless burning time of material after flame burning ends or the ignition source is removed in case of flameless burning under specified test conditions
Note 1: in seconds (s).
Note 2: in this standard, smoldering refers to flameless combustion which occurs at the edge of the damaged area and spreads along with the damaged area. In the damaged area, red heat will occur in some areas due to continuous release of the heat absorbed at the early stage, and the duration of the red heat will not be counted into the smoldering time.
Note 3: rewritten from definition 2.146 in GB/T 3291.3-1997.
3.4
damaged length
maximum length of the damaged part of material in specified direction at stated test conditions
Note1: in mm.
Note 2: rewritten from definition 2.157 in GB/T 3291.3-1997.
3.5
thermal protective performance; TPP
accumulated energy determined by the intersection of the measured heat transfer reaction curve and Stoll curve of the material in accumulated time during testing of thermal protective material
Note 1: in kW·s/m2.
Note 2: rewritten from definition 3.1 in GB/T 38302-2019.
3.6
inherent flame retardant fabric
flame retardant fabric with corresponding flame retardant performance grade only by forming flame retardant fiber materials or the combination of flame retardant fiber materials of fabric, without any flame retardant after-treatment
3.7
after treatment flame retardant fabric
fabric with flame retardancy obtained by chemically treating fibers, yarns and fabrics that have no flame retardancy or have insufficient flame retardancy
3.8
outer shell/layer
material used for the outermost layer of clothing
3.9
lining
the innermost layer of clothing used to cover the inner surface of clothing in whole or in part
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Grading
5 Requirements
6 Test method
7 Inspection rules
8 Identification, packaging and storage
Annex A (Normative)
Bibliography
