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GB/T 3780.23-2016: Carbon black -- Part 23: Sampling and testing of carbon black fugitive emissions or other environmental particulate
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GB/T 3780.23-2016: Carbon black -- Part 23: Sampling and testing of carbon black fugitive emissions or other environmental particulate

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Carbon black - Part 23. Sampling and testing of carbon black fugitive emissions or other environmental particulate ICS 83.040.20 G49 National Standards of People's Republic of China Carbon black Part 23. Efforts Carbon or other environments Particle sampling and identification Carbonblack-Part 23. Samplingandtestingofcarbonblackfugitive 2016-12-13 released 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

GB/T 3780 "Carbon black" is divided into the following parts. - Part 1. Test method for iodine absorption; - Part 2. Determination of oil absorption; - Part 4. Determination of oil absorption of compressed specimens; - Part 5. Determination of specific surface area - CTAB method; - Part 6. Determination of color strength; - Part 7. Determination of pH; - Part 8. Determination of heating reduction; - 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 Reflectance method; - Part 18. Identification methods in natural rubber (NR); - Part 21. Determination of sieve residue Water rinsing method; - Part 22. Calculating the process capability index with process control data; - Part 23. Sampling and identification of disperse carbon blacks or other environmental particles. This part is part 23 of GB/T 3780. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This section is proposed by the China Petroleum and Chemical Industry Association. This part is headed by the National Committee for the Standardization of Rubber and Rubber Products Standardization Technical Committee (SAC/TC35/SC5). This part of the drafting unit. China Rubber Group Carbon Black Industry Research and Design Institute, Ningbo De Tai Chemical Co., Ltd., Sichuan Institute of Technology, Shandong Branch New materials co., Ltd. The main drafters of this part. Deng Yi, Wang Dingyou, Huang Xifu, Jin Yongzhong, Zhang Youwei, Wang Cheng. Carbon black Part 23. Efforts Carbon or other environments Particle sampling and identification Caution - Personnel using this section should have practical experience in formal laboratory work. This section does not indicate all possible security questions question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.

1 Scope

This part of GB/T 3780 specifies the sampling and identification of carbon black and other environmental particulates in the production process of carbon black. This part applies to the identification of carbon black or other environmental particulates in the production of carbon black.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Carbon black - Part 14. Determination of sulfur content GB/T 3780.14

3 terms and definitions

The following terms and definitions apply to this document. 3.1 String of grape-like aciniform Shaped like a bunch of grapes. Note. The black particles of carbon black particles into the colloidal size of the aggregates, and grape morphology. 3.2 String of grape-like carbon aciniformcarbon Colloidal carbon, aggregated by globular primary particles (or nodules) into colloidal sizes and aggregated, with grape-like or open dendrites structure. 3.3 Carbon black An engineering material, mainly composed of carbon elements, from the incomplete combustion of hydrocarbons and thermal cracking derived from spherical primary particles Into a cluster of grape-like aggregates exist. For a given aggregate, the primary particles are homogeneous and the inside of the original particles structure. Note. Particle size and aggregate size (including the number of particles per aggregate) are distributed and vary with the variety of carbon black. Its electron microscopy As noted in Appendix A, although the size of the aggregates in a designated carbon black variety varies widely, the size of the primary particles in each aggregate is essentially Is consistent. 3.4 Sample supervision and delivery chainofcustody A set of documents describing the conditions for sample collection, analysis, and processing. ...