GB/T 4293-1984
abolished_transferred
YS/T 637-2007
Replaced
Industry standards-Non-ferrous metals
YS/T 637-2007 Lithium phosphate for production of colored phosphor powder
YS/T 637-2007 Lithium phosphate for production of colored phosphor powder
Basic Information
Standard Code:
YS/T 637-2007
Standard Type:
Industry standards
Standard Status:
Replaced
is_force_gb:
no
CCS Name:
Inorganic salts
ICS Name:
Salt
Publish Date:
2007-04-13
Implement Date:
2007-10-01
Pages:
5 pages
Scope
This standard specifies the requirements, test methods, inspection rules, and marking, packaging, transportation, and storage of lithium phosphate for use in color phosphors.
This standard applies to lithium phosphate prepared by the phosphate precipitation method using industrial monohydrate lithium hydroxide or industrial lithium carbonate as raw materials, which is intended for the production of color phosphors.
Development Information
Superseded by the following standards
Referenced Standards
Related Standards
GB/T 6275-1986
Abolished
GB/T 6275-1986 Ammonium hydrogen carbonate for industrial use
GB/T 6276.1-1986
Replaced
GB/T 6276.1-1986 Ammonium hydrogen carbonate for industrial use—Determination of total alkalinity—Volumetric method
GB/T 6276.2-1986
Replaced
GB/T 6276.2-1986 Ammonium hydrogen carbonate for industrial use—Determination of chloride content—Potentiometric method
GB/T 6276.3-1986
Replaced
GB/T 6276.3-1986 Ammonium hydrogen carbonate for industrial use—Determination sulphide content—Visible turbidimetric method
GB/T 6276.4-1986
Replaced