General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 17669.3-1999
Scope
This standard specifies the methods for measuring the flexural strength, compressive strength and gypsum hardness of building gypsum. This standard applies to building gypsum without aggregates.
GB/T 17669.3-1999 history
1999GB/T 17669.3-1999 Gypsum plasters--Determination of mechanical properties