JIS R 9151:1979
Gypsum for portland cement retarder
- Standard No.
- JIS R 9151:1979
- Release Date
- 1979
- Published By
- Japanese Industrial Standards Committee (JISC)
- Status
- 2009-02
- Replace By
- JIS R 9151 AMD 1:2009
- Latest
- JIS R 9151 AMD 1:2009
- Scope
- This standard specifies natural gypsum (hereinafter referred to as gypsum) that is conveniently used in cement.
JIS R 9151:1979 history
- 2009 JIS R 9151 AMD 1:2009 Gypsum for Portland Cement Retarder (Amendment 1)
- 1979 JIS R 9151:1979 Gypsum for portland cement retarder
