GB/T 4509-1984
Test method for needle penetration of petroleum bitumens
Be replaced
1999-02
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Std.
GB/T 4509-1984
Standard No.
GB/T 4509-1984
Language
Chinese
Release Date
1984
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Replace By
GB/T 4509-1998
Lastest
GB/T 4509-2010
GB/T 4509-1984 history
2011
GB/T 4509-2010
Standard test method for penetration of bitumen
1998
GB/T 4509-1998
Bitumen--Determination of penetration
1984
GB/T 4509-1984
Test method for needle penetration of petroleum bitumens
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