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GB/T 250-2008 English PDF (GBT250-2008)

GB/T 250-2008 English PDF (GBT250-2008)

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GB/T 250-2008: Textiles -- Tests for colour fastness -- Grey scale for assessing change in colour

GB/T 250-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
GB/T 250-2008 / ISO 105-A02.1993
Replacing GB 250-1995
Textiles - Tests for colour fastness -
Grey scale for assessing change in colour
(ISO 105-A02.1993, IDT)
ISSUED ON. AUGUST 06, 2008
IMPLEMENTED ON. JUNE 1, 2009
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Forward ... 3
1 Scope ... 4
2 Principle ... 4
3 Describing colour changes in fastness tests ... 6
Forward
This Standard, using translation method, equivalently adopts ISO 105-A02.1993 “Textiles - Test for colour fastness - Part A02. Grey scale for assessing change in colour” (English version) and its Technical Corrigendum 2.2005.
This Standard makes the following editable modifications.
- The term “this part of ISO 105” is replaced by “this Standard”;
- Forward of ISO 105-A02.1993 is deleted;
- The content of ISO 105-A02.2005-Technical Corrigendum 2 is integrated into the relevant clauses.
This Standard replaces GB 250-1995 “Grey scale for assessing change in colour”. Comparing this Standard with GB 250-1995, the main changes are shown as follows. - Change the standard name to be “Textiles - Test for colour fastness - Grey scale for assessing change in colour”;
- Change this Standard from mandatory standard to recommended standard; - Add, when using grey scale, the surrounding field and covering material color’s requirements.
This Standard was proposed by China National Textile and Apparel Council. This Standard shall be under the jurisdiction of Basis Branch of National Textile Standardization Technology Committee (SAC/TC 209/SC 1).
Drafting organizations of this Standard. Shanghai Textile Industry Technology Supervision Firm, Shanghai Textile Science Research Institution.
Chief drafting staffs of this Standard. Chen Xiao hen, Zhang Zheng, Wang Zhongzhao. The issuing status of the historical version of the standards that are replaced by this Standard is as follows.
- GB 250-1964, GB 250-1984, GB 250-1995.
Y Yellower J
Str
Br
Weaker
Stronger
Duller
Brighter
Pu

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