GB/T 3780.24-2017 English PDF

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GB/T 3780.24-2017: Carbon black -- Part 24: Determination of void volume
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Basic data

Standard ID: GB/T 3780.24-2017 (GB/T3780.24-2017)
Description (Translated English): Carbon black -- Part 24: Determination of void volume
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G49
Classification of International Standard: 83.040.20
Word Count Estimation: 10,116
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 3780.24-2017: Carbon black -- Part 24: Determination of void volume

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Carbon black-Part 24. Determination of void volume ICS 83.040.20 G49 National Standards of People's Republic of China Carbon black Part 24. Determination of void volume Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

GB/T 3780 "carbon black" is divided into the following sections. --- Part 1. Iodine absorption test method; --- Part 2. Determination of oil absorption; --- Part 4. Determination of compressed sample absorption value; --- Part 5. Determination of specific surface area CTAB method; --- Part 6. Determination of color strength; --- Part 7. Determination of pH value; --- 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 toluene extractable transmittance; --- Part 17 - Indirect determination of particle size reflectance method; --- Part 18. Identification of natural rubber (NR); --- Part 21. Determination of sieve residue water washing method; --- Part 22. Calculation of process capability index using process control data; --- Part 23. Sampling and identification of fugitive carbon black or other environmental particles; --- Part 24. Determination of void volume. This section GB/T 3780 part 24. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by China Petroleum and Chemical Industry Federation. This part of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35) centralized. This part of the drafting unit. Hao Zhongyuan Black Chemical Research and Design Institute Co., Ltd., Lone Star Chemical Co., Ltd., Shandong Huadong Rubber Materials Limited, Sichuan Institute of Technology. The main drafters of this section. Wang Dingyou, Deng Yi, Hou Hailiang, Guo Lingzhi, Kim Young-chung. Carbon black Part 24. Determination of void volume

1 Scope

GB/T 3780 provisions of this part of the carbon black void volume determination method. This section applies to carbon black.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 3778 carbon black rubber GB/T 3780.2 Carbon black Part 2. Determination of oil absorption HG/T 2725 Standard Methods for Sampling Bulk Carbon Black

3 Terms

The following terms and definitions apply to this document. 3.1 Compressed volume (carbon black) compressedvolume (carbonblack) A certain amount of carbon black in the cylinder body by exerting a predetermined pressure on the apparent pressure after the apparent volume. 3.2 Theoretical volume (carbon black) theoreticalvolume (carbonblack) Assuming that there is no void space in the carbon black, a certain amount of carbon black has the volume. Carbon black, as measured by a given mass and a specific test method, is true Density ratio derived. 3.3 Void volume (carbon black) voidvolume (carbonblack) Volume of all closed pores in the carbon black primary structure. By carbon black aggregate particles of irregular and non-spherical characterization, expressed as one The difference (compression volume - theoretical volume), as a function of bearing pressure, is normalized to 100 g mass. Note Carbon black is subject to packaging, compression and breakage due to irregularities and entanglements of its aggregates, particle size distribution and aggregate strength or interparticle interconnections within the aggregate branches broken. The void volume of carbon black compression is also affected by the reaction forces of the cylinder wall and the piston head, which forces in turn depend on the morphology of the sample Height to cylinder diameter) or interfacial area, which will affect the uniformity of compaction density. Due to the compressed void volume depends on the cylinder geometry Inch and may depend on the area of the cylinder wall (ie, the effect of friction), the measured compression volume may not be the true compression volume unless these factors are obtained Correction or may not count.

4 Method summary

The compressed volume measured with a dry sample is a function of applied pressure and can be measured with a manufacturer or user calibrated vial volume analyzer measuring. Based on the measured compression volume, the theoretical volume was subtracted from the compression volume to give the void volume and expressed as normalized 100 g The value of quality. The true void volume can be corrected for empty measurements by the device's geometry, sample quality and possible frictional effects Gap volume is obtained. ......

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