GB/T 29511-2013 English PDF (GB/T29511-2013)

GB/T 29511-2013: Protective clothing -- Chemical protective clothing against solid particulates
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GB/T 29511-2013
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 12.340.10
C 73
Protective clothing - Chemical protective clothing
against solid particulates
ISSUED ON: MAY 09, 2013
IMPLEMENTED ON: FEBRUARY 01, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Technical requirements ... 5 
5 Test method ... 10 
6 Identification ... 11 
7 Packaging, transportation and storage ... 12 
Appendix A (Normative) Test method for inward leakage of chemical protective
clothing against solid particulates ... 13 
Appendix B (Normative) Test method for anti-particulate penetration efficiency
of fabrics ... 25 
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard refers to ISO 13982.1: 2004 "Protective clothing for use against
solid particulates - Part 1: Performance requirements for chemical protective
clothing providing protection to the full body against airborne solid particulates
(type 5 clothing)", ISO 13982.2: 2004 “Protective clothing for use against solid
particulates - Part 2: Test method of determination of inward leakage of aerosols
of fine particles into suits”.
This Standard converts the contents of ISO 13982.2: 2004 into Appendix A of
this Standard.
This Standard was proposed by the State Administration of Work Safety.
This Standard shall be under the jurisdiction of National Technical Committee
112 on Personal Protective Equipment of Standardization Administration of
China (SAC/TC 112).
The drafting organizations of this Standard: China Academy of Safety Science
and Technology, People's Liberation Army Institute of Chemical Defense, Du
Pont China Holding Co., Ltd., Beijing Yingtelai Technology Co., Ltd., the Second
Artillery Equipment Academy of Chinese People's Liberation Army.
The drafters of this Standard: Zhao Yang, Ding Songtao, Jin Junchao, He
Qingfang, Li Shuanghui, Li Hubin, Ding Zhixin, Yang Peiying.
Protective clothing - Chemical protective clothing
against solid particulates
1 Scope
This Standard specifies the gradation, basic performance requirements, test
methods and identification of chemical protective clothing against solid
particulates.
This Standard applies to the protective clothing that is required for the skin
protection of workers who are exposed to chemical contamination of
particulates in the workplace environment.
This Standard does not include technical requirements for supporting personal
protective equipment such as respiratory protective equipment, protective
gloves, protective shoes and other personal protective equipment.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
document.
GB/T 3917.3, Textiles - Tear properties of fabrics - Part 3: Determination of
tear force of trapezoid-shaped test specimens
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 4744, Textiles - Testing and evaluation for water resistance -
Hydrostatic pressure method
GB/T 12586, Rubber or plastics-coated fabrics - Determination of resistance
to damage by flexing
GB/T 13640, Size designation of protective clothing
GB/T 13773.1, Textiles - Seam tensile properties of fabrics and made-up
textile articles - Part 1: Determination of maximum force to seam rupture
using the strip method
GB/T 20655, Protective clothing - Mechanical properties - Determination of
the resistance to puncture
GB/T 21196.2, Textiles - Determination of the abrasion resistance of fabrics
by the Martindale method - Part 2: Determination of specimen breakdown
GB 24539-2009, Protective clothing - Performance requirements of chemical
protective clothing
3 Terms and definitions
The following terms and definitions are applicable to this document.
3.1 Particle
Solid suspended matters or solid particles in the gas medium, of which the
landing speed can be ignored.
Note 1: It does not include volatile or permeable toxic particles.
Note 2: "The landing speed can be ignored" usually refers to the landing speed
lower than 0.25 m/s.
3.2 Inward leakage
The ratio OF the concentration of pollutants that leak into clothing from various
parts of protective clothing, including fabrics and connections TO the
concentration of pollutants in the environment.
Note: The inward leakage is expressed in percentages.
3.3 Penetration efficiency
The percentage of particle that penetrates the protective clothing fabric.
4 Technical requirements
4.1 General
4.1.1 The fabrics and accessories that are used in chemical protective clothing
against solid particulates (hereinafter referred to as protective clothing) shall be
non-irritating to the skin and harmless to health.
4.1.2 For protective clothing, under the premise of ensuring the protection, the
comfort of the protective clothing shall be fully considered. The comfort of the
fabric shall be evaluated on the basis of full consideration and assessment of
the material's air permeability, moisture and heat resistance. On the premise of
ensuring the strength of the material and the protective performance of the
protective clothing, try to use materials of small mass per unit area.
4.1.3 The protective clothing shall be compatible with other relevant personal
protective equipment as much as possible.
4.1.4 After maintenance according to the method that is recommended by the
manufacturer, protective clothing that can be used multiple times shall meet the
requirements that are specified in 4.3.
4.2 Design requirement
The design of protective clothing shall:
a) at least provide protection to the wearer's torso, head, arms and legs;
b) The fabric and style of protective clothing shall meet the requirements to
prevent the penetration of particles.
4.3 Performance requirements
4.3.1 Overall protective performance of protective clothing
Perform the overall protective performance test of protective clothing according
to the provisions of 5.1. It is required that the inward leakage of protective
clothing to particulate matter Ljmn, 82/90 ≤ 30%; the total inward leakage of each
protective clothing LS, 8/10 ≤ 15%.
Note 1: Ljmn, 82/90: inward leakage that is expressed in percentages. 82/90 refers
that when all 90 leakages are arranged in order from small to large,
take the 82nd inward leakage. The data includes all test actions,
collection points and inward leakage of protective clothing.
Note 2: LS, 8/10: the total inward leakage of each piece of protective clothing.
8/10 refers to the 8th value of the total inward leakage of all 10 pieces
of protective clothing in order from small to large.
Note 3: If more than 10 pieces of protective clothing are tested, for the Ljmn, 82/90
data, select at 91% from all leakages in ascending order; for the LS, 8/10
data, select at 80% from all total inward leakages in ascending order.
4.3.2 Fabric penetration resistance to particles
According to the provisions of 5.2, perform the test of protective clothing fabric
penetration resistance to solid particles. According to the lowest value of the
fabric penetration efficiency test result, it is graded and identified according to
Table 1; the fabric penetration efficiency shall not be lower than grade 1.
Table 1 -- Gradation of penetration efficiency
4.3.3 Resistance to water penetration of fabric
The requirements of the resistance to water penetration of the protective
clothing fabric are as follows:
a) Perform the test of resistance to water penetration of the protective
clothing fabric according to the provisions of 5.3; according to the lowest
value of test result of resistance to water penetration, it is graded and
identified according to Table 2; the resistance to water penetration of the
fabric shall not be less than grade 1;
b) Pretreat the fabric of the protective clothing according to the provisions of
GB/T 21196.2; for the abrasive, use standard wool cloth; the pressure is
9 kPa; after the sample is subjected to 100 times of friction treatment,
perform the test of resistance to water penetration according to the
provisions of 5.3; the resistance to water penetration drop shall not exceed
50%.
Table 2 -- Resistance to water penetration performance gradation
4.3.4 Fabric wear resistance
According to the provisions of 5.4, perform the fabric wear resistance test. The
test pressure is 9 kPa; according to the number of cycles that is required for
fabric damage, grade and identify the test results as Table 3. The wear
resistance of protective clothing shall not be lower than grade 1.
Grade Penetration efficiency η/ %
Grade Resistance to water penetration/ kPa
Table 3 -- Wear resistance gradation
4.3.5 Fabric flexural failure resistance
According to the provisions of 5.5, perform the fabric flexural failure resistance
test. According to the average value of flexural failure cycle number test results,
it is graded and identified according to Table 4. The requirements of the fabric
flexural failure resistance are shown in Table 4. The protective clothing fabric
flexural failure resistance shall not be lower than grade 1.
Table 4 -- Flexural failure resistance gradation
4.3.6 Fabric tear strength
According to the provisions of 5.6, perform the fabric tear strength test.
According to the minimum value of the fabric tear strength test result, it shall be
graded and identified according to Table 5. The tear strength of the fabric of the
protective clothing requires that the strength shall not be lower than grade 1.
Grade Number of cycles that is required to produce damage
Grade Number of cycles
Table 5 -- Tear strength gradation
4.3.7 Fabric breaking strength
According to the provisions of 5.7, perform the fabric breaking force test.
According to the test results of fabrics, the average value of breaking strength
is graded and identified according to Table 6. The breaking strength of the
protective clothing fabric requires that the breaking strength of the fabric shall
not be lower than grade 1.
Table 6 -- Breaking force gradation
4.3.8 Fabric puncture resistance
According to the provisions of 5.8, perform the fabric puncture resistance test.
According to the average value of the fabric puncture resistance test results, it
is graded and identified according to Table 7. The fabric puncture resistance
shall not be lower than grade 1.
Grade Tear strength/ N
Grade Breaking force/ N
Table 7 -- Puncture resistance gradation
4.3.9 Fabric high temperature resistance and low temperature resistance
According to the provisions of 5.9, after the fabric is pretreated at 70 °C or -
40 °C for 8 h, the breaking strength drop shall not exceed 30%.
4.3.10 Seam strength
According to the provisions of 5.10, perform the protective clothing seam
strength test. According to the average value of seam strength test results, it is
graded and identified according to Table 8. Seam strength shall not be lower
than grade 1.
Table 8 -- Seam strength gradation
5 Test method
5.1 The overall protective performance of protective clothing against particles
shall be tested according to the method that is specified in Appendix A.
5.2 The fabric penetration resistance to solid particles is tested according to the
provisions of Appendix B.
5.3 The resistance to water penetration of the fabric is tested according to the
method that is specified in GB/T 4744.
Grade Puncture resistance/ N
Grade Seam strength/ N
5.4 The wear resistance of the fabric is tested according to the method that is
specified in GB/T 21196.2; the sandpaper is required to be in accordance with
the provisions of Appendix F of GB 24539-2009.
5.5 The fabric flexural failure resistance is tested according to the method that
is specified in GB/T 12586.
5.6 The fabric tear strength is tested according to the method that is specified
in GB/T 3917.3.
5.7 The fabric breaking force is tested according to the method that is specified
in GB/T 3923.1.
5.8 The fabric puncture resistance is tested according to the method that is
specified in GB/T 20655.
5.9 The fabric high temperature resistance and low temperature resistance is
tested according to the method that is specified in 6.15 of GB 24539-2009.
5.10 The seam strength of protective clothing is tested according to the method
that is specified in GB/T 13773.1.
6 Identification
6.1 Permanent identification
The protective clothing shall have the product name, implementation standard,
product category code, production date, manufacturer name and address, and
size specifications.
6.2 Certificate of quality
The content of the certificate of quality shall include at least the product name,
size specifications, batch or production date, factory name and factory address.
6.3 Packaging
The protective clothing and its independent outer packaging shall have the
product name, trademark, product category code, and size specifications.
6.4 Instruction book
Product instruction book shall be included in the individual packaging of the
protective clothing; the product instruction book shall include at least:
a) restrictions on use;
b) product type and main performance grade;
c) size;
d) period of validity;
e) test program before use;
f) maintenance information;
g) failure and disposal recommendations.
7 Packaging, transportation and storage
The product shall be stored in a dry and ventilated place. During transportation,
the packaging must not be damaged, and shall be kept clean, free from
pressure, heat ...