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GB/T 3780.28-2020: Carbon black - Part 28: Determination the content of polycyclic aromatic hydrocarbons
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3780.28-2020 | English | 189 |
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Carbon black - Part 28: Determination the content of polycyclic aromatic hydrocarbons
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GB/T 3780.28-2020
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Basic data | Standard ID | GB/T 3780.28-2020 (GB/T3780.28-2020) | | Description (Translated English) | Carbon black - Part 28: Determination the content of polycyclic aromatic hydrocarbons | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G49 | | Classification of International Standard | 83.040.20 | | Word Count Estimation | 10,124 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-10-01 | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 3780.28-2020: Carbon black - Part 28: Determination the content of polycyclic aromatic hydrocarbons
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Carbon black-Part 28.Determination the content of polycyclic aromatic hydrocarbons
ICS 83.040.20
G49
National Standards of People's Republic of China
Carbon black. Part 28.Determination of polycyclic aromatic hydrocarbon content
2020-11-19 released
2021-10-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Foreword
GB/T 3780 "Carbon Black" is divided into the following parts.
---Part 1.Test method of iodine absorption value;
---Part 2.Determination of oil absorption value;
---Part 4.Determination of the oil absorption value of the compressed sample;
---Part 5.Determination of specific surface area by CTAB method;
---Part 6.Determination of tinting strength;
---Part 7.Determination of pH;
---Part 8.Determination of heating loss;
---Part 10.Determination of Ash;
---Part 12.Inspection of impurities;
---Part 14.Determination of sulfur content;
---Part 15.Determination of light transmittance of toluene extract;
---Part 17.Indirect determination of particle size and reflectance method;
---Part 18.Identification method in natural rubber (NR);
---Part 21.Determination of the residue on the sieve with water washing method;
---Part 22.Use process control data to calculate process capability index;
---Part 23.Sampling and identification of fugitive carbon black or other environmental particles;
---Part 24.Determination of void volume;
---Part 25.Determination of carbon content;
---Part 26.Determination of carbon content in carbon black feedstock oil;
---Part 27.Determination of aggregate size distribution by disc centrifugal optical sedimentation measurement;
---Part 28.Determination of polycyclic aromatic hydrocarbon content.
This part is part 28 of GB/T 3780.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the China Petroleum and Chemical Industry Federation.
This part is under the jurisdiction of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35).
Drafting organizations of this section. Double Coin Group Shanghai Tire Research Institute Co., Ltd., Shandong Nice Carbon Black Co., Ltd., Anhui Heiyu Pigment New
Materials Co., Ltd., Sichuan University of Light Chemical Technology, Zhonghao Heiyuan Chemical Research and Design Institute Co., Ltd., Hangzhou C&K Testing Technology Co., Ltd. (C&C
Testing), Jiangxi Black Cat Carbon Black Co., Ltd., Longxing Chemical Co., Ltd., Shandong Huadong Rubber Material Co., Ltd., Dongying Best
Chemical Technology Co., Ltd., Maoming Huanxing New Material Co., Ltd., Jiangsu Tianrui Instrument Co., Ltd.
The main drafters of this section. Dong Wenwu, Jiang Qi, Zhang Jianmin, Wu Baosong, Zhang Jingyu, Li Changhai, Nie Suqing, Lu Junying, Hou Hegang,
Guo Lingzhi, Wang Shanshan, Chen Lindong, Ai Ming.
Carbon black. Part 28.Determination of polycyclic aromatic hydrocarbon content
Warning---The personnel using this section should have practical experience in formal laboratory work. This section does not point out all possible safety issues
question. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.
1 Scope
This part of GB/T 3780 specifies the use of gas chromatography-mass spectrometry (GC-MS) to determine the content of polycyclic aromatic hydrocarbons (PAHs) in carbon black
Methods.
This section applies to the qualitative and quantitative testing of 18 polycyclic aromatic hydrocarbons for rubber carbon black and pigment carbon black.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 3778 Carbon black for rubber
GB/T 7044 Pigment Carbon Black
GB/T 8170 Numerical rounding rules and the expression and determination of limit values
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Polycyclic aromatic hydrocarbons; PAHs
A hydrocarbon containing two or more benzene rings in the molecule.
Note. According to the connection mode of the benzene ring, polycyclic aromatic hydrocarbons can be divided into three types. polyphenyl substituted aliphatic hydrocarbons, biphenyl and fused polycyclic aromatic hydrocarbons.
4 Principle
The sample is mixed with toluene to extract polycyclic aromatic hydrocarbons in an ultrasonic water bath. After cooling, the components to be tested are obtained by membrane filtration.
Measured by GC-MS and quantified by internal standard method.
5 Reagents and materials
5.1 Toluene, above analytical grade.
5.2 Internal standard substance 1, commercially available certified octa-deuterated naphthalene (Naphthalene-d8), used to calibrate the No. 1 PAHs in Appendix A.
5.3 Internal standard substance 2, commercially available certified deuterated pyrene (Pyrene-d10), or deuterated anthracene (Anthracene-d10), or deuterated phenanthrene (Phenan-d10)
threne-d10), used to correct the PAHs No. 2 to No. 10 in Appendix A.
5.4 Internal standard 3, commercially available certified Perylene-d12, or Benzo(a)pyrene [Benzo(a)pyrene-d12], three
Triphenyl-benzene is used to calibrate PAHs No. 11 to No. 18 in Appendix A.
5.5 18 kinds of PAHs mixed standard solution, mass concentration is 1000μg/mL, or containing 18 kinds of polycyclic aromatic hydrocarbons (see Appendix A)
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