GB/T 39621-2020
Active
National standards
GB/T 39621-2020 Textiles—Quantitative chemical analysis—Mixture of cross-linked lyocell fibres and viscose or cupro or modal (method using formic acid and zinc chloride)
GB/T 39621-2020 Textiles—Quantitative chemical analysis—Mixture of cross-linked lyocell fibres and viscose or cupro or modal (method using formic acid and zinc chloride)
Basic Information
Standard Code:
GB/T 39621-2020
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Baseline standards and general methods
ICS Name:
Comprehensive Textile Products
Publish Date:
2020-12-14
Implement Date:
2021-07-01
Pages:
11 pages
Scope
This standard specifies the method for determining the fiber content in a mixture of two components, cross-linked lyocell fibers and viscose fibers, cuprammonium fibers, or modal fibers, after removing non-fiber substances using the formic acid/zinc chloride method.
This standard applies to mixtures of two components, cross-linked lyocell fibers and viscose fibers, cuprammonium fibers, or modal fibers.
This standard does not apply to mixtures containing cross-linked lyocell fibers that have been severely chemically degraded, nor to mixtures containing certain viscose fibers, cuprammonium fibers, or modal fibers that cannot be completely dissolved.
Development Information
Referenced Standards
Related Standards
GB/T 14575-1993
Replaced
GB/T 3920-1997
Replaced
GB/T 3920-1997 Textiles—Tests for colour fastness—Colour fastness to rubbing
GB/T 3921.1-1997
Replaced
GB/T 3921.1-1997 Textiles—Tests for colour fastness—Colour fastness to washing:Test 1
GB/T 3921.2-1997
Replaced
GB/T 3921.2-1997 Testiles—Tests for colour fastness—Colour fastness to washing:Test 2
GB/T 3921.3-1997
Replaced
GB/T 3921.3-1997 Textiles—Tests for color fastness—Color fastness to washing:Test 3
GB/T 3921.4-1997
Replaced