TB/T 3237-2010 (TBT 3237-2010)

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TB/T 3237-2010
GB
RAILWAY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 45.060.01
S 30
Flame retardant technical specification of
decorating materials for multiple unit train
ISSUED ON. AUGUST 22, 2010
IMPLEMENTED ON. FEBRUARY 01, 2011
Issued by. Ministry of Railways of the People’s Republic of China
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Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Technical requirements ... 5
4 Test methods ... 7
Foreword
This Standard is proposed by and shall be under the jurisdiction of Institute of Standard
Metrology of Ministry of Railways.
Drafting organizations of this Standard. Institute of Metals and Chemistry of China
Academy of Railway Sciences, Institute of Standard Metrology of Ministry of Railways,
Qingdao Sifang Vehicle Research Institute Co., Ltd., Yangzhou Huatong Rubber &
Plastic Co., Ltd.
Main drafters of this Standard. Wu Shaoli, Cui Dongfang, Chen Chuanzhi, Yu
Quanying, Yin Chaoqing.
Flame retardant technical specification of
decorating materials for multiple unit train
1 Scope
This Standard specifies the requirements and test methods for flame retardant
performance of decorating materials for multiple unit train.
This Standard applies to decorating materials for multiple unit train with an operating
speed greater than or equal to 200 km/h.
2 Normative references
The following standards contain provisions which, through reference in this Standard,
constitute provisions of this Standard. For dated reference, subsequent amendments
to (excluding corrections to), or revisions of, any of these publications do not apply.
However, the parties to agreements based on this Standard are encouraged to
investigate the possibility of applying the most recent editions of the standards. For
undated references, the latest edition of the normative document referred to applies.
GB/T 2406.2-2009 Plastics - Determination of burning behaviour by oxygen index -
Part 2. Ambient-temperature test (ISO 4589-2.1996, IDT)
GB 5085.3-2007 Identification standards for hazardous wastes - Identification for
extraction toxicity
GB/T 5454-1997 Textile - Burning behaviour - Oxygen index method (neq ISO
4589.1984)
GB/T 8323.2-2008 Plastic - Smoke generation - Part 2. Determination of optical
density by a single-chamber test (ISO 5659-2.2006, IDT)
GB/T 8924-2005 Test method for flammability characteristics of fiber reinforced
plastics - Oxygen index method
GB/T 10707-2008 Rubber - Determination of the burning
GB/T 15262-1994 Ambient air - Determination of sulfur dioxide - Formaldehyde
absorbing-pararosaniline spectrophotometry
GB/T 17096-1997 Hygienic standard for nitrogen oxides in indoor air
a) Gas sampler. the maximum flow rate of sampling shall be not less than 2 L/min;
b) Infrared analyzer. for CO, CO2 gas analysis, the range for CO. 0.01 % ~ 1 %, for
CO2. 0.1 % ~ 20 %;
c) Gas detection tube. for the detection of HCN harmful gases after combustion;
d) Gas collection bag;
e) Potentiometric titrator. the accuracy is 0.1 % and above;
f) Ion chromatograph.
4.4.3 Gas analysis
4.4.3.1 Analysis of CO and CO2
The collected harmful gases are absorbed by the aqueous solution, dried by a drying
apparatus with CaCl2, and then connected to a CO and CO2 infrared analyzer for gas
analysis.
4.4.3.2 Preliminary analysis of harmful gases
The gas collected in the gas collection bag is preliminarily analyzed by the gas
detection tube to determine the type of harmful substances in the gas. This method is
for qualitative analysis, not for quantitative analysis (except for HCN).
4.4.3.3 Analysis of HCl, HBr, HF
The test method is in accordance with the provisions of GB 5085. 3-2007.
4.4.3.4 Analysis of SO2 gas
The gas in the gas collection bag is passed through the gas sampler to absorb it into
the formaldehyde buffer absorption solution. The volume of the gas is 2 L. The test
method is in accordance with the provisions of GB/T 15262-1994, and the gas
concentration is measured.
4.4.3.5 Analysis of HCN gas
The HCN gas analysis is carried out using the detection tube.
4.4.3.6 Analysis of NOx (in NO1) gas
The NOx gas analysis is carried out according to the provisions of GB/T 17096-1997.
4.4.4 Result processing