TB/T 3139-2021 PDF English
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TB/T 3139-2021: Limit of harmful substance of non-metallic materials and indoor air for railway locomotive and vehicle ---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/TBT3139-2021
RAILWAY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 45.060.01
S 30
Replacing TB/T 3139-2006
Limit of harmful substance of non-metallic materials and
indoor air for railway locomotive and vehicle
Issued on. MARCH 05, 2021
Implemented on. OCTOBER 01, 2021
Issued by. National Railway Administration
Table of Contents
Foreword... 4
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 9
4 Limits and test methods of harmful substances in non-metallic materials used in
vehicles... 10
5 Requirements and test methods for prohibited and restricted substances in non-
metallic materials for railway locomotive and vehicle... 21
6 Limits, detection methods, inspection rules of harmful substances in indoor air of
railway locomotive and vehicle... 26
Appendix A (Normative) Test method of weight loss after heating... 31
Appendix B (Normative) Substance composition of prohibited substances and restricted
substances in non-metallic materials for railway locomotive and vehicle... 33
Appendix C (Informative) Requirements for restricted substances in non-metallic
materials for railway locomotive and vehicle... 35
Appendix D (Normative) Detection of ozone depleting substances (ODS)... 37
Appendix E (Normative) Detection of 4-nitrobiphenyl content... 41
Appendix F (Normative) Detection of halobenzylmethane content... 44
Appendix G (Normative) Detection of phosphorus flame retardant content... 48
Appendix H (Normative) Detection of man-made mineral fibers... 51
Appendix I (Normative) Talc detection... 57
Appendix J (Normative) Detection of medium-chain chlorinated paraffins... 63
Appendix K (Normative) Detection of content of phthalates... 67
1 Scope
This document specifies the limits and test methods of harmful substances in non-
metallic materials, which are used in railway locomotive and vehicle, the limits and test
methods of prohibited and restricted substances in non-metallic materials, which are
used in railway locomotive and vehicle, as well as the limits and test methods of harmful
substances in indoor air of railway locomotive and vehicle.
This document applies to the limits of harmful substances in non-metallic materials for
locomotives, passenger trains, EMUs; the indoor air of driver's cabs and passenger
compartments; the limits of prohibited and restricted substances of non-metallic
materials for locomotives, passenger trains, EMUs.
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. For the dated documents, only the
versions with the dates indicated are applicable to this document; for the undated
documents, only the latest version (including all the amendments) is applicable to this
standard.
GB/T 1725-2007 Paints varnishes and plastics - Determination of non-volatile-
matter content
GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1.Free and
hydrolyzed formaldehyde (water extraction method)
GB/T 2918-2018 Plastics - Standard atmospheres for conditioning and testing
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 6750-2007 Paints and varnishes - Determination of density - Pycnometer
method
GB/T 17592 Textiles - Determination of the banned azo colorants
GB/T 17657-2013 Test methods of evaluating the properties of wood-based panels
and surface decorated wood-based panels
GB/T 18204.2-2014 Examination methods for public places - Part 2.Chemical
pollutants
GB/T 18414.1 Textiles - Determination of the content of chlorinated phenols - Part
1.Gas chromatography/mass spectrography
GB/T 18446 Binders for paints and varnishes - Determination of monomeric
diisocyanates in isocyanate resins
GB 18583 Indoor decorating and refurbishing materials - Limit of harmful
substances of adhesives
GB 18586 Indoor decorating and refurbishing materials - Limit of harmful
substances of polyvinyl chloride floor coverings
GB 18587 Indoor decorating and refurbishing materials - Limitations of harmful
substances emitted from carpets, carpet cushions and adhesives
GB/T 18883 Indoor air quality standard
GB/T 19719 Jewellery - Determination of the release of nickel - Method of
spectrometry
GB/T 19942 Leather and fur - Chemical tests - Determination of banned azo
colorants
GB/T 20384 Textiles - Determination of the residual chlorobenzenes and chlorinated
toluenes
GB/T 22807 Leather and fur - Chemical tests - Determination of chromium VI
content
GB/T 23263 Determination of asbestos in products
GB/T 23322 Textiles - Determination of surfactant - Alkylphenols and alkylphenol
ethoxylates
GB/T 23985-2009 Paints and varnishes - Determination of volatile organic
compound (VOC) content - Difference method
GB/T 23986-2009 Paints and varnishes - Determination of volatile organic
compound (VOC) content - Gas-chromatographic method
GB/T 23990-2009 Determination of the contents of benzene toluene ethylbenzene
and xylene in coatings by gas chromatography
GB/T 23992-2009 Determination of chlorohydrocarbon content in coatings - Gas
chromatographic method
GB/T 23993-2009 Determination of formaldehyde content of waterborne coatings -
Spectrophotometric method with acetylacetone
GB 24409-2020 Limit of harmful substances of vehicle coatings
GB/T 26125 Electrical and electronic products - Determination of six regulated
substances (lead, mercury, cadmium, hexavalent chromium, polybrominated
biphenyls, polybrominated diphenyl ethers)
GB/T 28189 Textiles - Determination of polycyclic aromatic hydrocarbons
GB/T 29784.2 Determination of polycyclic aromatic hydrocarbons in electrical and
electronic products - Part 2.Gas chromatographic method with mass spectrometric
detection
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Weight loss after heating
At a certain temperature, the mass change of the material, before and after heating.
3.2
CAS Number, CAS No.
The unique numerical identification number of the substance.
3.3
Volatile organic compounds, VOC
Organic compounds, which participate in atmospheric photochemical reactions, OR
organic compounds, which are determined according to relevant provisions.
[Source. GB 24409-2020, 3.23]
3.4
Volatile organic compound content, VOC content
The mass of organic compounds, which present in an adhesive or coating, as
measured under specified conditions.
[Source. GB 33372-2020, 3.1, with modifications].
3.5
Total volatile organic compounds, TVOC
Volatile organic compounds, which have retention time between n-hexane and n-
hexadecane, when using Tenax GC or Tenax TA sampling, and analyzing by non-
polar columns (polarity index less than 10).
[Source. GB/T 18883-2002, 3.3]
3.6
Bulk adhesive
Adhesives, which have a dispersing medium content of less than 5% of the total.
[Source. GB 33372-2020, 3.4]
4 Limits and test methods of harmful substances in non-metallic materials used in vehicles
4.1 Basic requirements
For non-metallic materials, which have a usage amount of less than 500 g in a single
compartment, no test of weight loss after heating shall be carried out. Other
environmental protection requirements shall meet the corresponding requirements of
this standard.
4.2 Panel materials
4.3 Flooring materials
4.4 Adhesive
4.4.1 Limits of harmful substances
The content limit of harmful substances, in solvent-based adhesives, shall comply with
the provisions in Table 3.
4.4.2 Test method
Test of weight loss after heating is carried out, in accordance with the provisions of
Appendix A.
The test of volatile organic compound content (VOC content) is carried out, in
accordance with the provisions of GB 33372.
The rest of the tests are carried out, in accordance with the provisions of GB 18583.
4.5 Coatings
4.5.1 Solvent-based coatings
4.5.2 Water-based paints
4.5.2.1 Limits of harmful substances
The content limit of harmful substances, in water-based coatings, shall comply with the
provisions in Table 7.
4.5.2.2 Test method
4.5.2.2.1 VOC content
First, test the moisture content in the water-based paint, according to the provisions of
Appendix A in GB 24409-2020.
If the moisture content in the paint is greater than or equal to 70% (mass fraction), it
shall be carried out, in accordance with the provisions of GB/T 23986-2009.Weigh
about 1 g of the specimen. The chromatographic column adopts a medium polarity
chromatographic column (6% cyanopropylphenyl/94% polydimethylsiloxane capillary
column). The marker is diethyl adipate. VOC content is calculated, according to 10.4
in GB/T 23986-2009.
If the moisture content, in the paint, is less than 70% (mass fraction), it shall be carried
out, according to the provisions of GB/T 23985-2009.Non-volatile content is
determined, according to the provisions of GB/T 1725-2007.Weigh about 1 g of the
specimen; the baking condition is 105 °C ± 2 °C; the baking time is 1 h. The VOC
content is calculated, according to 8.4 in GB/T 23985-2009.
The density is carried out, according to the provisions of GB/T 6750-2007.The test
temperature is 23 °C ± 0.5 °C.
4.5.2.2.2 Total content of benzene series
It is carried out, according to the provisions of the method B in GB/T 23990-2009.For
the calculation of benzene series content, it shall be carried out, according to 9.4.3 in
GB/T 23990-2009; then converted into mass fraction (%).
4.5.2.2.6 Total content of alkylphenol polyoxyethylene ether
The determination of the total content of alkylphenol polyoxyethylene ether is carried
out, according to the provisions of GB/T 31414-2015.
5 Requirements and test methods for prohibited and restricted substances in non-metallic materials for railway locomotive and vehicle
5.1 Substance composition of prohibited and restricted substances in
non-metallic materials for railway locomotive and vehicle
The substance composition of prohibited substances and restricted substances of non-
metallic materials, for railway locomotive and vehicle, shall comply with the provisions
of Appendix B. For a single product, which has a mass of not more than 50 g, it may be
exempted from the test of prohibited or restricted substances.
5.2 Requirements for prohibited substances and restricted substances
of non-metallic materials for railway locomotive and vehicles
The requirements for prohibited substances of non-metallic materials, which are used
in railway locomotive and vehicle, shall comply with the provisions in Table 17.The
requirements for restricted substances are as shown in Appendix C.
5.3.2.3 10 Beryllium and its compounds (by total amount of beryllium) Various All Shall not use
5.3 Inspection methods for prohibited and restricted substances in
non-metallic materials for railway locomotive and vehicle
5.3.1 General rules for inspection methods
5.3.2 Inspection methods for prohibited and restricted substances
6 Limits, detection methods, inspection rules of harmful substances in indoor air of railway locomotive and vehicle
6.1 Requirements for indoor air quality limit of railway locomotive and vehicle
Harmful substances, in the indoor air of railway locomotive and vehicle, shall comply
with the provisions of Table 18.
6.2 Detection method of indoor air quality of railway locomotive and
vehicle
6.2.2 Sampling method
6.2.2.1 Sampling height
When sampling, it shall avoid the vent duct and ventilation opening. The distance from
the wall shall be greater than 0.5 m. The height of the sampling point, in the passenger
compartment, is 1.2 m ± 0.2 m from the floor; the sampling point, in the business area,
is 0.8 m ± 0.2 m above the floor; the sampling point, in the sleeper compartment, is 15
cm ~ 20 cm above each sleeper; the sampling point, in the driver’s cab, is 1.4 m ± 0.2
m above the floor; the sampling point of the dining compartment is 1.2 m ± 0.2 m above
the floor; the sampling point of the bar of the dining compartment is 1.6 m ± 0.2 m
above the floor.
6.2.2.2 Number of sampling points
According to the size of the indoor area of the vehicle and the specific conditions of the
site, 1 ~ 3 points are set for the area, which is less than 50 m2; 3 ~ 5 points are set for
the area, which is between 50 m2 and 100 m2; the sampling points are distributed in
diagonal or plum-shape. A schematic diagram of the sampling layout is as shown in
Figure 1.For the sleeper train, it takes one private room each from the end and the
middle, for the test; the number of measurement points in the private room is consistent
with the number of sleeper layers. One test point is taken in the driver's cab; one test
point is taken in the bar area of the dining compartment.
6.2.2.3 Sampling requirements
When sampling the air quality inside the vehicle, the vehicle shall be placed in an area,
that does not affect the test results.
Condition 1.Under the condition that the temperature inside the vehicle is not lower
than 35 °C, close the doors and windows, the fresh air of the air conditioner and the
exhaust air outlet; close it for 12 hours; then turn on the air conditioner to the automatic
operation position OR set the target temperature of the air conditioner to 24 °C ± 2 °C;
carry out the sampling test after 2 h; the sampling temperature is not lower than 16 °C.
Condition 2.Before the vehicle sampling, close the doors and windows, fresh air and
waste air outlet of air conditioner, in natural state; close it for 12 hours; turn on the air
conditioning to the automatic operation position OR set the air conditioning target
temperature to 24 °C ± 2 °C; conduct the sampling test after 2 hours; the sampling
temperature is not lower than 16 °C.
Formic acid sampling time is 20 min; the sampling volume is 10 L. The TVOC
sampling time is 45 min; the sampling volume is 1 L ~ 10 L.
DNPH (2,4-dinitrophenylhydrazine) tube sample collection formaldehyde system
generally consists of constant flow gas sampler, sampling conduit, DNPH (2,4-
dinitrophenylhydrazine) sampling tube, etc. The schematic diagram of the composition
of the sampling system is as shown in Figure 2.The flow rate of the constant flow gas
sampler is adjustable, within the range of 50 mL/min ~ 1000 mL/min; the flow rate is
stable. When adjusting the gas flow rate, by a DNPH (2,4-dinitrophenylhydrazine)
sampling tube, AND calibrating the flow, by using a one-stage flowmeter (such as a
Sampling point. the area abovethe bar of the dining compartment Bar of the dining
compartment Aisle Sampling pointone-stage soap film flowmeter), the flow rate shall meet the requirement, that the error
of the two measurements before and after is less than 5%.
6.2.2.4 Atmospheric sampler
The internal aperture of the air sampler's inlet is 3.0 mm ~ 3.2 mm. The equipment shall
meet the requirements of GB/T 18883.
6.3 Inspection rules for indoor air quality of railway locomotive and vehicle
...... Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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