GB/T 3007-1982 Test method for moisture content of ordinary aluminum silicate refractory fiber felt GB/T3007-1982 standard download decompression password: www.bzxz.net

1. Specification
National Standard of the People's Republic of China
Test method tor moisture' conteat of ordinaryatumino-silicate refractory fiber felts
Moisture content refers to the weight loss of the sample after drying at 110℃, expressed as a percentage of the original sample. 2. Equipment
a. Balance, maximum weighing 208 Å, pH value b. Electric drying oven:bZxz.net
c. Dryer,
3. Sample preparation
Perform according to the provisions of GB3008-82 for sample preparation of ordinaryatumino-silicate refractory fiber felts. Rate test steps
UDC 666.76
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:543.81.06
GB3007-82
Put the weighing scale at 110±5℃ and dry it to the value. Weigh about 10g of the sample on the weighing scale with an accuracy of 0.001g. Put the weighing scale with the sample in an electric drying oven. Dry it at 110±5℃ for 1 hour. Take it out and put it in a desiccator to cool it to room temperature. Then weigh it. Then put the weighing scale with the sample Weigh the sample, dry it for half an hour, cool it, and weigh it. Repeat this operation until constant weight is achieved (the difference between the last two weighings is not greater than 0.002g).
.5 Result calculation
5, 1 The moisture content is calculated according to the following formula:
Moisture content = (W=W×100%
Wherein: W is the weight of the sample before drying, g; W, is the weight of the sample after drying, g; W. is the weight of the sample, g.
The average value of the three samples is taken as the result of one test. 5.2 The moisture content is calculated to the first decimal place, and the numbers after the decimal place are processed according to the digital dining rules in Appendix C of GB1.1-81 "General Provisions for the Preparation of Standards in the Guidelines for Standardization Work". 6 Test report
The test report should include:
a, Commissioning unit:
b, Sample name and number:
Published by the General Administration of Standardization of China on March 29, 1982||t t||1983-01-01
Average value of test results;
d. Test unit;
, Test personnel:
Test date.
Additional remarks,
GB3007-82
This standard is proposed by the Ministry of Metallurgical Industry of the People's Republic of China. This standard is drafted by the Ministry of Metallurgical Industry Yang Refractory Materials Research Institute. The main drafters of this standard are Ma Wenyan and Wu Shuqin. 2
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