GB/T 8324-1987 Test method for volume coefficient of molding materials

This method is a test method for determining the volume coefficient of a material by using the apparent density of the molding material before molding and the density after molding. GB/T 8324-1987 Test method for volume coefficient of molding materials GB/T8324-1987 Standard download decompression password: www.bzxz.net

1.131: 678-5/.8-027.7: 551.7551
National Standard of the People's Republic of China
GBB324—87
Test method for bulk factor of moulding materials
Test methad for bulk factnr
of moulding materials
Published on December 1, 1987
National Standard
Implemented on August 1, 1988
National Standard of the People's Republic of China
Test method for bulk factor of moulding materialswwW.bzxz.Net
Test method for bulk factor of moulding materials
This standard is equivalent to the international standard 1S0171—198V Determination of volume coefficient of materials UDC 678.5/.8.027
GB8324--87
This method is to use the surface density of the molded material at the time of technical shaping and the density after molding to determine the volume coefficient of the material.
The volume coefficient of the molding plastic refers to the ratio of the volume of a certain plastic to its volume after molding into a plastic product, which is also equal to the ratio of the density of the molded product to the apparent density of the molding plastic. 2.1 Determine the apparent density of the molding plastic before molding according to GB [36] 2.2 Determine the apparent density of the molding plastic after molding according to GF3 plastic relative density test method: 3 Results display
Press or calculate the volume coefficient of the molding plastic:
The volume coefficient of the plastic after molding:
The density of the plastic after molding: 8/ml:
.. The apparent density of the molding plastic before molding contains /m3, and the test results are taken in two valid digits.
, Test report
The test report includes the following items:
, indicate the technical standard:
b, the name, specification, brand and manufacturer of the test material, etc. c. Test duration
d The apparent density of the model material:
. The degree of plastic mold after molding,
Dual use instructions:
1] GB1636 [S60.15061,
Ministry of Chemical Industry of the People's Republic of China 1987-11-15 approved 1986-08-01 purchase #
. The volume of the same sample is the test period of one month, personnel, etc.,
Additional instructions:
GE 832487
This standard is under the jurisdiction of the Physical and Mechanical Test Method Branch of the National Technical Committee for Standardization of Materials. This standard was drafted by the Nine Quality Branches of the Institute of Light and Chemical Engineering of the Ministry of Chemical Industry, and the quality standards are required to be normal.
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