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GB/T 3780.12-2007: Carbon black -- Part 12: Inspection of impurity material
Status: Valid GB/T 3780.12: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3780.12-2007 | English | 139 |
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Carbon black -- Part 12: Inspection of impurity material
| Valid |
GB/T 3780.12-2007
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| GB/T 3780.12-1995 | English | 199 |
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Carbon black--Inspection of impurity material
| Obsolete |
GB/T 3780.12-1995
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| GB 3780.12-1983 | English | 199 |
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Carbon black--Inspection of impurity material
| Obsolete |
GB 3780.12-1983
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PDF similar to GB/T 3780.12-2007
Basic data | Standard ID | GB/T 3780.12-2007 (GB/T3780.12-2007) | | Description (Translated English) | Carbon black -- Part 12: Inspection of impurity material | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G49 | | Classification of International Standard | 83.040.20 | | Word Count Estimation | 5,579 | | Date of Issue | 2007-11-28 | | Date of Implementation | 2008-06-01 | | Older Standard (superseded by this standard) | GB/T 3780.12-1995 | | Regulation (derived from) | China National Standard Approval Announcement No. 12, 2007 (No. 112) | | Issuing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 | | Summary | This standard specifies the method for carbon black 850��m sieve pass the inspection of non- carbon material. This section applies to carbon black for rubber, acetylene black and carbon black pigment. | GB/T 3780.12-2007: Carbon black -- Part 12: Inspection of impurity material---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 12. Inspection of impurity material
ICS 83.040.20
G49
National Standards of People's Republic of China
Replacing GB/T 3780.12-1995
Carbon black - Part 12. Impurity checks
Posted 2007-11-28
2008-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 3780 "black" is divided into the following parts.
--- Part 1. Iodine adsorption test method;
--- Part 2. Determination of oil absorption value;
--- Part 4. Determination of oil absorption value and sample preparation (compressed sample);
--- Part 5. Determination of the specific surface area CTAB method;
--- Part 6. Determination of color strength;
--- Part 7. Determination of pH;
--- Part 8. Determination of heating loss;
--- Part 10. Determination of ash;
--- Part 12. Check the 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 of natural rubber (NR) in;
--- Part 21. Rubber compounding ingredients - Determination of sieve residue - Water washing method.
This part of GB/T 3780 Part 12.
This Part replaces GB/T 3780.12-1995 "black impurity inspection."
This section compared with the GB/T 3780.12-1995, main changes are as follows.
a) modify the standard name;
b) increase the standard catalog series;
c) increasing the security warning language;
d) an increase of normative references introductory phrase file (Chapter 2 of this edition);
e) reference standard added "acetylene black" and "black dye" two standards (see Chapter 2);
f) samples increased GB/T 3782, GB/T 7044 (see section 5.1);
g) increased by a magnet impurity species identification methods (edition 6.4);
h) the accuracy of scales to 5g (see 4.3);
i) increase and funnel filled sample container (Excerpts of 4.4, 4.5).
This part is proposed by the China Petroleum and Chemical Industry Association.
This part of the National Rubber and rubber products Standardization Technical Committee of carbon black Technical Committee (SAC/TC35/SC5) centralized.
This section is responsible for drafting unit. China Rubber Group Carbon Black Research & Design Institute, Tianjin dolphins Carbon Black Co., Ltd.
The main drafters of this section. Yuyan, Zhang Kai, Zhong Lei.
This section 1983, first published in 1995, the first revision.
Carbon black - Part 12. Impurity checks
Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that all possible security issues.
Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This section provides the carbon black passed inspection method 850μm sieve non-black substance.
This section applies to carbon black for rubber, carbon black and acetylene carbon black pigment.
2 Normative references
The following documents contain provisions by GB/T 3780 reference in this part of the provisions of this section. For dated references,
All subsequent amendments (not including errata content) or revisions do not apply to this section, however, encourage the agreement on this section
Whether the parties can study the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB 3778 carbon black for rubber
GB/T 3782 acetylene black
GB/T 7044 carbon black pigment
GB/T 6003.1 woven wire mesh test sieve (GB/T 6003.1-1997, eqv ISO 3310-1.1990)
HG/T 2725 standard method for sampling bulk carbon black
Principle 3
Weigh a certain amount of carbon black, non-pass check black substance 850μm sieve --- hard carbon, sand, rust, etc., if that is
Impurities.
4 Instrument
4.1 Test sieve, sieve with a bronze or stainless steel, the basic mesh size 850μm, in line with GB/T 6003.1 regulations.
4.2 brush, flat, long hair ≥2cm.
4.3 scales, precision 5g.
4.4 funnel stainless steel funnel catchy with an inner diameter of the outer diameter test sieves in close agreement, under the funnel cone mouth in close agreement with black packing containers.
4.5 container capacity of 1000cm3 wide-mouth glass jar or other suitable container.
5 Sampling
5.1 Carbon black bagged by GB 3778, GB/T 3782, the relevant provisions of GB/T 7044 will be.
5.2 bulk carbon black according to the provisions of HG/T 2725's.
Step 6 Analysis
6.1 The test sieve (4.1) placed in a funnel catchy, lower cone funnel inserted into the container mouth (4.5).
6.2 with the scales weighed about 500g samples, accurate to 5g, is poured into the test sieve.
6.3 brush gently brushing the carbon black sample, until all the carbon black sample through the screen up, pass the screen (that is to remain in the web) non
Carbon black is the substance impurities.
6.4 decanted impurities, with the naked eye, and hand types (hard carbon, sand, rust, etc.) pressure, magnet and other methods for the identification of impurities.
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