HG/T 2060-1991 Test method for weight gain and pore filling rate of impregnated graphite

HG/T 2060-1991 Test method for weight gain and pore filling rate of impregnated graphite HG/T2060-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG/T2060-91
Weight gain rate and pore filling rate of impregnated graphite
Test method
1991-07-06 Issued
Ministry of Chemical Industry of the People's Republic of China
1992-01-01 Implementation
: Issued
Chemical Industry Standard of the People's Republic of China
Weight gain rate and pore filling rate of impregnated graphite
Test method
Subject content and scope of application
HG/T2060-91
This standard specifies the test specimens, test instruments and equipment, and test methods used in determining the weight gain rate and pore filling rate of impregnated graphite. This standard applies to the determination of the weight gain rate and pore filling rate of impregnated graphite. 2 Reference standards
GB/T13465.1 General test methods for mechanical properties of impermeable graphite materials YB908 Determination of bulk density and apparent porosity of carbon materials 3 Test specimens
3.1 The sampling method of the test specimens shall comply with the provisions of 4.1 in GB/T13465.1. 3.2 Test specimen size: @ (45±0.12mm) × (45±0.12mm) 3.3 Number of test specimens: not less than 5 pieces.
3.4 ​​The surface roughness of the test specimens shall reach Ra≤3.2μm. 4 Test instruments and equipment
4.1 Industrial balance: 0~200g, sensitivity 0.01g. 4.2 Electric oven: 0~150℃.
4.3 Dryer.
5 Test steps
5.1 The sample is marked with advertising pigment or paint. 5.2 Place the sample in an electric oven and bake at 105-110°C for 2 hours. Take out the sample and place it in a dryer, cool it to room temperature, 5.3 Weigh it with an industrial balance, accurate to 0.01g. 5.4 The sample is impregnated and heat-treated twice according to the process conditions. The sample must be wiped clean of the resin on its surface after each impregnation, and cool it to room temperature after the second heat treatment.
5.5 Weigh it with an industrial balance, accurate to 0.01g. 5.6 The apparent porosity is determined according to YB908. 6 Result processing
The weight gain rate of impregnated graphite is calculated according to formula (1):61
Approved by the Ministry of Chemical Industry of the People's Republic of China on July 6, 1991 and implemented on January 1, 1992
Wherein: G—weight gain rate of impregnated graphite, %;
Mass of sample before impregnation, g;
Mass of sample after impregnation, g
6.2 The porosity of impregnated graphite is calculated according to formula (2):HG/T2060-
Wherein: P—porosity of impregnated graphite, %;
—bulk density of graphite material, g/cm3;
—resin density, g/cm3;
H—apparent porosity, %;
G—weight gain rate of impregnated graphite, %
6.3 The test results are rounded to three significant figures and the arithmetic mean is calculated. 7 Test report
The test report shall include the following contents:
Test name, number, sample delivery unit and sample delivery date: b.
Instrument and equipment name and model;
Sample size and quantity;
Test results: valid test data and conclusion of the sample; test date and test personnel.
Additional remarks:
This standard was proposed by China National Chemical Equipment Corporation91
This standard is under the jurisdiction of the National Technical Committee for Standardization of Non-metallic Chemical Equipment, and was drafted by Shenyang Chemical Machinery Factory. The drafter of this standard is He Huiqing.
From the date of implementation of this standard, the former Chemical Industry Ministry standard HG5-1336-80 "Test method for weight gain rate (pore filling rate) of impregnated graphite" shall be invalid.
People's Republic of Chinabzxz.net
Chemical Industry Standard
Test method for weight gain and porosity of impregnated graphite HG/T2060-91
Editor: Chemical Industry Standard Editorial Department
(Institute of Standardization, Ministry of Chemical Industry)
Postal code: 100013
Printer: Institute of Standardization, Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format: 880×12301/16 Number of words on a sheet: 4000 First edition in June 1993
First printing in June 1993
Number of copies: 1-300
16090010
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