HG/T 2797.7-1996 Determination of heating loss of silicon aluminum carbon black HG/T2797.7-1996 Standard download decompression password: www.bzxz.net

HG/T 2797.7—1996bZxz.net
This standard is a method standard, equivalent to the international standard IS01126:1992\Rubber compounding-carbon black-heating reduction plate determination" The main difference between this standard and ISO1126 is: This standard stipulates that the difference between two determination results shall not exceed ±0.3%, while the international standard ISO1126 does not make any provisions. ISO1126 stipulates two temperature levels (105t or 125c) while this standard only uses one level 105℃. This standard was proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China: This standard is under the jurisdiction of the Carbon Black Industry Research and Design Institute of the Ministry of Chemical Industry: This standard was drafted by the Carbon Black Industry Research and Design Institute of the Ministry of Chemical Industry; The main drafters of this standard: Yu Lian, Xue Fan, 37
ISO before
ISO (International Organization for Standardization) is a worldwide organization of countries A joint body of standards bodies (ISO member bodies). The work of formulating international standards is usually carried out by ISO technical committees. Any member body interested in a specialty of an established technical committee has the right to participate in the committee. International organizations, whether governmental or non-governmental, that have ties to ISO may also participate in this work. ISO has close ties with the International Electrotechnical Commission (IEC) in terms of electrotechnical standards. Draft international standards adopted by the technical committee are sent to member bodies for voting. According to ISO requirements, at least 75% of the member bodies must vote in favor of the standard before it can be formally adopted.
International standard ISO1126 was formulated by ISO/TC45 Rubber and Rubber Products Subcommittee SC Raw Materials for Rubber Industry (including Latex).
This standard is the third edition with minor modifications to the second edition, replacing and replacing the Second edition (ISO1126: 1985) 38
1 Scope
Chemical Industry Standard of the People's Republic of China
Determination of heating loss of silicon aluminum carbon black
This standard specifies the determination method of heating loss of silicon aluminum carbon black. This standard is applicable to the determination of heating loss of various types of silicon aluminum carbon black. 2 Referenced standards
HG/T2797.7—1996
cqISo1126: 1992
The following standards contain provisions, which constitute the provisions of this standard through reference in this standard. When the standard is published, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards. HG/T2795-1996 Silicon aluminum carbon black packaging, storage, transportation, sampling and acceptance method 3 Original Process
Heat the silicon aluminum carbon black sample at 105℃ for 1h in a weighing bottle. Cool the weighing bottle in a desiccator and calculate the percentage of heating loss after weighing.
4 Equipment
4.1 Constant temperature dry media box: the temperature can be controlled at 105±2℃, 4.2 Weighing bottle: short type, 30mm high, 60mm true diameter, equipped with ground glass cover, 4.3 Analytical balance: accurate to 0.1m g,
4.4 Dryer.
5 Sample
Perform according to Chapter 5 of HG/T2796
6 Steps
6.1 Open the bottle cap, place the weighing bottle and cap in a constant temperature drying oven at 105±2℃, and heat for 30 minutes. Then put the weighing bottle and cap in a dryer and cool them to room temperature. Weigh the bottle and cap to the nearest 0.1mg. 6.2. Weigh about 2g of silicon aluminum carbon black into the weighing bottle, and weigh to the nearest 0.1mg. 6.3 Place the weighing bottle containing the sample in a constant overflow drying oven, open the bottle cap, and dry it at 105±2℃ for 1h. 6.4 Put the cap back on, move the weighing bottle into a desiccator, open the cap again, let it cool to room temperature, put the cap back on and weigh it, accurate to 0.1mg.
Note: 1) Place the sample in a glass bottle with a sealing stopper or a container with a ground-mouth cap. Before starting the test, let the sealed container reach room temperature. 2) When the weighing bottle is taken out of the desiccator or put in, the cap should be closed to avoid loss of the sample due to air flow. Instructions:
1) International standard IS01126 stipulates 105±2 or 125±2℃, approved by the Ministry of Chemical Industry of the People's Republic of China on April 10, 1996 and implemented on January 1, 1997
Nesting representation
HG /T 2797.7 —1996
7.1 Heating loss is expressed as a percentage of mass and is calculated as follows: m,-mz
Where: mo
-mass of weighing bottle and cover, g:
7.2 Permissible difference
-mass of weighing bottle, cover and sample before heating, more than one weighing plate of weighing bottle, cover and sample after heating, g. The difference between two measurement results shall not exceed ±0.3%2) Test report
The test report shall include the following items:
Standard number on which this test is based;
Complete sample number and place of origin;
Average value of two measurement results;
Abnormal phenomena occurring during the test;
Operation steps not specified in this standard;
Test date.
Instructions for adoption:
2) International standard ISO1126 does not specify the permissible difference. 40
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