GB/T 7568.3-2008 English PDF (GBT7568.3-2008)

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GB/T 7568.3-2008: Textiles -- Tests for colour fastness -- Standard adjacent fabrics -- Part 3: Polyamide
GB/T 7568.3-2008
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.01
W 04
Replacing GB 11403-1989
Textiles - Tests for color fastness -
Standard adjacent fabrics - Part 3: Polyamide
(ISO 105-F03:2001, Textiles - Tests for color fastness - Part F03: Specification
for polyamide adjacent fabric, MOD)
ISSUED ON: AUGUST 06, 2008
IMPLEMENTED ON: JUNE 01, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Materials ... 6 
4 Requirements for polyamide adjacent fabric ... 6 
5 Evaluation of staining performance of tested polyamide adjacent fabric ... 7 
Foreword
GB/T 7568 is divided into 7 parts:
- Part 1: Wool;
- Part 2: Cotton and viscose;
- Part 3: Polyamide;
- Part 4: Polyester;
- Part 5: Acrylic fabric;
- Part 6: Silk fabric;
- Part 7: Multi-fiber.
This part is the part 3 of GB/T 7768.
It modifies and uses the ISO 105-F03:2001 Textiles - Tests for color fastness -
Part F03: Specification for polyamide adjacent fabric (English version).
The main differences between this part and ISO 105-F03:2001 are as follows:
- REPLACE the international standards in normative references by the
national standards; ADD the GB/T 251, FZ/T 01023, FZ/T 01024;
- ADD the requirements for the performance of polyamide-stained reference
fabric;
- ADD the requirements for the number of folding layers when measuring the
whiteness;
- ADD the use of instrument grading method to evaluate the tested adjacent
fabric and reference adjacent fabric after staining;
- DELETE the foreword, notes, references of ISO 105-F03:2001.
This part replaces the GB 11403-1989 Textiles - Tests for color fastness -
Specification for standard adjacent fabric: Polyamide. As compared with GB
11403-1989, the main changes are as follows:
- CHANGE the standard name into “Textiles - Tests for color fastness -
Standard adjacent fabrics - Part 3: Polyamide”;
- CHANGE it from mandatory standard into recommended standard;
Textiles - Tests for color fastness -
Standard adjacent fabrics - Part 3: Polyamide
1 Scope
This part specifies the specifications and requirements for the unstained
polyamide standard adjacent fabric suitable for use in assessing staining in
color fastness tests.
The staining characteristics of the polyester adjacent fabric to be tested shall,
together with the polyamide reference adjacent fabric, be determined by
comparing with polyamide-stained reference fabric. Both reference fabrics shall
be obtained from the prescribed supply.
2 Normative references
The provisions in following documents become the provisions of this part
through reference in this part of GB/T 7568. For the dated references, the
subsequent amendments (excluding corrections) or revisions do not apply to
this part; however, parties who reach an agreement based on this part are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB 250 Textiles - Tests for color fastness - Grey scale for assessing change
in color (GB 250-2008, ISO 105-A02:1993, IDT)
GB 251 Textiles - Tests for color fastness - Grey scale for assessing staining
(GB 251-2008, ISO 105-A03:1993, IDT)
GB/T 3921-2008 Textiles - Tests for color fastness - Color fastness to
washing with soap or soap and soda (ISO 105-C10:2006, MOD)
GB/T 4669 Textiles - Woven fabrics - Determination of mass per unit length
and mass per unit area (GB/T 4669-2008, ISO 3801:1977, MOD)
GB/T 7573 Textiles - Determination of pH of the aqueous extract (GB/T 7573-
2002, ISO 3071:1980, MOD)
GB/T 8424.1 Textiles - Tests for color fastness - General principles for
measurement of surface color (GB/T 8424.1-2001, eqv ISO 105-J01:1997)
GB/T 8424.2 Textiles - Tests for color fastness - Instrumental assessment of