This standard specifies the method for determining the content of carbon black fine powder in rubber pellets. This standard is applicable to the determination of the content of carbon black fine powder in all types of rubber pellets. GB/T 14853.2-2002 Determination of the content of carbon black fine powder in rubber pellets GB/T14853.2-2002 Standard download decompression password: www.bzxz.net

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National Standard of the People's Republic of China
GB/T14853.22002
e4IS0 1435:1996
Rulher compounding ingredients-Carbon black.pelletized-Determination of fines content2002-05-29Published
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2002- 12- 01 Implementation
B/T14653.2-2C2
This standard is equivalent to the international standard 15143:135 determination of black powder content in granulation of compounding agent. The national standard GH/14853.2-1993 determination of fine powder content in granulated carbon for use in rubber is a whole piece: This standard is equivalent to the international standard 150)1235:19% The main difference is: This standard stipulates that the sample is full of medicine mixing points and the dividing machine is used at least twice. This standard stipulates that the test value is to take half of the average of the two measured values. The technical difference between this standard and GH/T1433.2-199 is: The test is carried out at 1S21135.5.
: In the referenced standards, \GB3779\ shall be changed to \(%$778—339-\. At the same time, the standard GB14833.3-6.14 shall be deleted:
one precision one case training, reproducibility.
This standard shall be implemented from the beginning, replace /4833.21993, this standard is proposed by the National Association of Rubber and Nuclear Rubber Products Standard The Chemical Technology Committee is a sub-technical committee of the Chemical Industry Committee. The drafting unit of this standard is China Rubber Group Corporation. The main contributors of this standard are: Meng Jinming, Ran Haoqing, Xiao Da. This standard was issued in January 1993. /T14853.2-202
ISO Foreword
The International Organization for Standardization (TS>) is a world-wide joint organization of national standards bodies (1S (member bodies). The work of formulating international standards is usually It is established by the technical committees of TS. All members who are interested in the technical requirements of the committee have the right to participate in the decision-making committee. They can also participate in the work of relevant governmental and non-governmental international organizations. They are responsible for all aspects of technical standardization. [S] cooperates with the International Electrotechnical Commission (EC). The international standard adopted by the technical committee shall be sent to the most member bodies for voting. When the international standard is issued, it requires at least 5% of the votes of the member bodies. The international standard <15)> 1435 was prepared by the Technical Committee of IS1/TC:45 Rubber Products Technical Committee, 5C Rubber Industry Raw Materials including Latex. The semi-standard is the first edition, and the third edition has been technically corrected. And the third edition (ISO145, %) is taken. National Standard of the People's Republic of China
Determination of the content of fine powder in granulated carbon for rubber
Rhher rnmmuuding ingredientsCarhon hlack.pallelized-Deterninatinn nf finey contcntCB/T 14853.22002
eqv1801435:1996
Note: Personnel using this standard should be familiar with laboratory procedures. This standard does not involve any safety issues in use. Users are responsible for taking appropriate safety and quality measures and ensuring compliance with national regulations. 1 Scope
This standard specifies the method for determining the content of black fine powder in nuclear rubber pellets. This standard is applicable to the determination of the content of black fine powder in various types of nuclear rubber pellets. 2 Reference standards
The following referenced articles are intended to become the text of this standard by being referenced in this standard. When the standard is used, the referenced article is indicated. All versions are valid. All standards are subject to revision. The parties using this standard should promptly use the following standard to measure the possible new version. G937781994 Carbon black for rubber
G36403.1—1957 Test sieve of wire mesh: q15033101:190(0G8170—1987 Numerical conversion rules
3 Method According to requirements
Weigh a certain amount of carbon with a rod, transfer it to a test sieve with a diameter of 12:T, remove it from the sieve in a sieving machine, and the carbon that passes the sieve is taken as the fine powder content of carbon black. The result is expressed as a percentage of the original amount. 4. Equipment and facilities
4.1 Mechanical screening machine: With uniform rotation, it can simultaneously strike a stack of 200mn test sieves. The ball rotation speed is 2~32Ct/min. The belt end is 2.3~2.7Hz (14u~160mia1). The screen must be made of a cork. Rubber and other materials cannot be used instead. The cork is 3-9m higher than the screen cover. 4.2 Test compensation: $200×25/125. Symbol (H/6003.1R40/series 6 4.3 Test acceptance: 5.
4.4 Sieve cover. bzxZ.net
4.5 Sieve plate,
1.6 Sample divider, the divider has 6 or more parallel methods, the gray and black samples are divided into two parts. 4.7 Small shovel or sample spoon
.8 No balance is 5.1 and 1:
4.5 Sand table or timer
Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on 2002·0529 and implemented on 2002-12-01
Sampling is carried out according to G33779.
6. Sample preparation
CB/T 14853-2202
6.1.2 Accurately weigh the test sample 85%, weigh to (0.1 month 6.2.2. Transfer the good carbon test sheet to the 2H×2525 test sieve, and install the test sieve on the machine. If there is an empty sieve in the magnetic sieve machine, replace the sieve with the sample on the upper part of the test group. Calculation: The storage efficiency will be affected by the position of the test sample, so whether it is appropriate, the test results are as follows: 6.3 The vibrating sieve machine is used to beat the sieve for 5 minutes.
6.4 Take the sieve from the vibrating sieve machine and weigh the receiving plate. The whole receiving plate is weighed to 111g. 7 Results are expressed as
The content of fine powder is expressed as mass percentage, calculated according to formula (1): G
武十: ara
The quality of carbon sample:
The receiving plate is higher than the quality of the condensed sample
The sweet powder content is more,
The test result is the average of the two test results, and then corrected by /T51. Test standard: accurate to 1. B. Precision
B.1 Repeatability: The difference between the results of two tests is greater than 0.8.2 Reproducibility: The difference between the two test results is less than 1% of the common average value. 9 Test report
The test report should include the following contents:
a) The standard number of the test;
b) The variety and number of the sample;
The average value of the two test results;
d) The operating steps not specified in this standard;
e) Record the abnormal information during the test;
Test period.
Sampling purpose description,
17I501:35 meters are specified in effect.
2.154) 1:35 specifies that only one sample is measured to achieve the specified level.2
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