GB/T 2022-1980
Replaced
GB/T 39701-2020
Active
National standards
GB/T 39701-2020 Limit and test method of ammonium ion content in fly ash
GB/T 39701-2020 Limit and test method of ammonium ion content in fly ash
Basic Information
Standard Code:
GB/T 39701-2020
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Cement
ICS Name:
Cement, gypsum, lime, and mortar
Publish Date:
2020-12-14
Implement Date:
2021-11-01
Pages:
15 pages
Scope
This standard specifies the limit for the ammonium ion content in fly ash and the testing method for it.
This standard applies to fly ash used as a cement additive, mortar, and concrete admixture, as well as other materials designated to comply with this standard.
Development Information
Referenced Standards
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
GB/T 8170-1987 Rules for rounding off of numberical values
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values
GB 12573-1990 Sampling method of cement
GB/T 12573-2008 Sampling method for cement
Related Standards
GB/T 177-1985
Abolished
GB/T 177-1985 Test method for strength of hydraulic cement mortar
GB/T 6645-1986
Replaced
GB/T 6645-1986 Granulated electric furnace phosphorous slag used for cement production
GB/T 7897.1-1987
Replaced
GB/T 7897.1-1987 Test method of mechanical properties of mortar for ferrocement General principle
GB/T 7897.2-1987
Replaced
GB/T 7897.2-1987 Test method of mechanical properties of mortar for ferrocement Test of bending strength
GB/T 7897.3-1987
Replaced