GB/T 5327-1985
Replaced
GB/T 6367-2012
Active
National standards
GB/T 6367-2012 Surface active agents—Preparation of water with known calcium hardness
GB/T 6367-2012 Surface active agents—Preparation of water with known calcium hardness
Basic Information
Standard Code:
GB/T 6367-2012
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Basic standards and general methods for surfactants
ICS Name:
Surfactants and other auxiliary agents
Publish Date:
2012-12-31
Implement Date:
2013-08-01
Pages:
7 pages
Scope
This standard specifies the preparation method for water with known calcium hardness.
This standard is applicable to the preparation of water with known calcium hardness used in testing surfactants and products containing surfactants.
In many surfactant hard water tests, there is no essential difference between calcium hardness and magnesium hardness, so these tests can usually be conducted in a chloride calcium solution with known calcium hardness.
Development Information
Replace the following standards
Referenced Standards
Adopt standards
ISO 2174:1990
Related Standards
GB/T 5328-1985
Active
GB/T 5328-1985 Surface active agents—Simplified classification
GB/T 5553-1985
Replaced
GB/T 5553-1985 Surface active agents—Textile auxiliaries—Method for determination of water repellency of waterprooting agents—Hydrostatic pressure test
GB/T 5554-1985
Replaced
GB/T 5554-1985 Surface active agents—Textile auxiliaries—method for determination of water repellency of waterprooting agents—Spray test
GB/T 6365-1986
Replaced
GB/T 6365-1986 Surface active agents—Determination of free alkalinity or free acidity—Titrimetric method
GB/T 6369-1986
Replaced