GB/T 20252-2006
Replaced
YS/T 256-2009
Active
Industry standards-Non-ferrous metals
YS/T 256-2009 Cobalt oxide
YS/T 256-2009 Cobalt oxide
Basic Information
Standard Code:
YS/T 256-2009
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Heavy metals and their alloys
ICS Name:
Cadmium and cobalt products
Publish Date:
2009-12-04
Implement Date:
2010-06-01
Pages:
5 pages
Scope
This standard specifies the requirements for cobalt oxide, testing methods, inspection rules, and marking, packaging, transportation, and storage. This standard is applicable to cobalt oxide used in the production of hard alloys, magnetic materials, glass and enamel, ceramic colors, glazes, and other applications.
Development Information
Replace the following standards
Referenced Standards
GB/T 1250-1989 Rules for expression and judgement of limiting values
GB/T 5060-1985 Metallic powders—Determination of apparent density—Part 2:Scott volumeter method
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
YS/T 710.1-2009 Method for chemical analysis of cobalt oxide—Part 1:Determination of cobalt content—Potentiometric method
YS/T 710.2-2009 Method for chemical analysis of cobalt oxide—Part 2:Determination of sodium content—Flame atomic absorption spectrometry method
YS/T 710.3-2009 Method for chemical analysis of cobalt oxide—Part 3:Determination of sulphur content—High frequency combustion-infrared absorption method
YS/T 710.4-2009 Method for chemical analysis of cobalt oxide—Part 4:Determination of arsenic content—Atomic fluorescence spectrometry
YS/T 710.5-2009 Method for chemical analysis of cobalt oxide—Part 5:Determination of silicon content—Molybdenum blue spectrophotometry
YS/T 710.6-2009 Method for chemical analysis of cobalt oxide—Part 6:Determination of calcium,cadmium,copper,iron,magnesium,manganese,nickel,lead,zinc content—Inductively coupled plasma-atomic emission spectromertry