GB/T 32598-2016 English PDF (GBT32598-2016)

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GB/T 32598-2016: Textiles -- Tests for colour fastness -- Method for the instrumental assessment of staining of adjacent fabrics
GB/T 32598-2016
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.01
W 04
Textiles - Tests for colour fastness - Method for the
instrumental assessment of staining of adjacent fabrics
(ISO 105-A04:1989, Textiles - Tests for colour fastness - Part A04: Method
for the instrumental of the degree of staining of adjacent fabrics, MOD)
ISSUED ON: APRIL 25, 2016
IMPLEMENTED ON: NOVEMBER 01, 2016
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Principle ... 4 
4 Instruments ... 4 
5 Sample ... 5 
6 Operating procedures ... 5 
7 Test report ... 6 
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard uses redrafting method to modify and adopt ISO 105-A04:1989
“Textiles - Tests for colour fastness - Part A04: Method for the instrumental of
the degree of staining of adjacent fabrics” (English version). Main technical
differences between this Standard and ISO 105-A04:1989 are as follows:
-- deleted ISO 105-F10:1989, ISO 105-J01:1989 from normative references,
added GB/T 3978, GB/T 7568 (all parts), GB/T 8424.3, GB/T 13765;
-- added relevant national standard references in Clause 4;
-- modified the operating method in 6.2 from “When the staining is uneven, it
shall be measured multiple times. When calculating, it shall use its
arithmetic mean” to “When the staining is uneven, it is recommended to
measure the darkest part of the adjacent fabric”;
-- modified the measuring conditions in 6.3 to “The recommended instrument
measuring geometric conditions are (di:8°), CIE10° observer and D65 light
source. After consultation in various aspects, it may also use other
measurement conditions and CIE2° observers specified in GB/T 3978”;
-- added number of calculation formulas in 6.4 and 6.5;
-- added sample description, testing instruments, testing conditions, date of
test in Clause 7.
This Standard was proposed by China Textile Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee
on Textiles of Standardization Administration of China (SAC/TC 209).
The drafting organizations of this Standard: Shanghai Entry-Exit Inspection and
Quarantine Bureau, China Textile Standard (Beijing) Inspection and
Certification Center Co., Ltd., Shanghai Aili Garment Inspection and Repair Co.,
Ltd.
Main drafters of this Standard: Sun Meirong, Yuan Zhilei, Wei Mengyuan, Cai
Jiashi, Zhou Zhiping, Liang Guobin.
Textiles - Tests for colour fastness - Method for the
instrumental assessment of staining of adjacent fabrics
1 Scope
This Standard specifies the method for the instrumental assessment of staining
of adjacent fabrics in tests for textile colour fastness.
This Standard is applicable to staining assessment in tests for colour fastness
of various textiles. It is also applicable to other textile materials.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 3978, Standard illuminants and geometric conditions
GB/T 7568 (all parts), Textiles - Tests for colour fastness - Standard adjacent
fabrics
GB/T 8424.3, Textiles - Tests for colour fastness - Calculation of colour
differences (GB/T 8424.3-2001, eqv ISO 105-J03:1995)
GB/T 13765, Textiles - Tests for colour fastness - Specification for
STANDARD adjacent fabric of linen and ramie
3 Principle
Respectively measure the colour of adjacent fabrics that are in contact with the
sample and the colour of adjacent fabrics that are not in contact with the sample
in the colour fastness test. The colour difference between the two is calculated
in a unit of CIELAB and is converted to the number of levels used to access the
staining through formula calculation.
4 Instruments
Spectrophotometer or colorimeter: With irradiation conditions for standard