GB/T 11199-1989
Replaced
GB/T 11213.4-2006
Active
National standards
GB/T 11213.4-2006 Sodium hydroxide for chemical fiber use—Determination of silicon content—Reduced molybdosilicate spectrophotometric method
GB/T 11213.4-2006 Sodium hydroxide for chemical fiber use—Determination of silicon content—Reduced molybdosilicate spectrophotometric method
Basic Information
Standard Code:
GB/T 11213.4-2006
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Inorganic acids and alkalis
ICS Name:
\nAlkali
Publish Date:
2006-12-29
Implement Date:
2007-06-01
Pages:
8 pages
Scope
This standard specifies the method for determining the silicon content in sodium hydroxide used for chemical fiber production. This standard is applicable to the determination of silicon dioxide (calculated as SiO2) in sodium hydroxide products with a content of 2μg to 200μg in the test sample.
Development Information
Same series standard
Replace the following standards
GB/T 11213.4-1989
Referenced Standards
Adopt standards
ISO 6382:1981
Related Standards
GB/T 11213.1-1989
Replaced
GB/T 11213.1-1989 Sodium hydroxide for chemical fiber—Determination method of mass fraction
GB/T 11213.2-1989
Replaced
GB/T 11213.2-1989 Sodium hydroxide for chemical fiber use—Determination of sodium chloride content—Spectrometric method
GB/T 11213.7-1989
Replaced
GB/T 11213.7-1989 Sodium hydroxido for chemical fiber use—Determination of copper mass fraction—Spectrometric method
GB 209-1993
Replaced
GB 209-1993 Sodium hydroxide for industrial use
GB/T 4294-1997
Replaced