GB/T 35259-2017: Textiles -- Tests for colour fastness -- Method for the instrumental assessment of the colour inconstancy of a specimen with change in illuminant (CMCCON02)

Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Get Quotation: Click GB/T 35259-2017 (Self-service in 1-minute)
Newer / historical versions: GB/T 35259-2017

Preview True-PDF

Scope

This Standard specifies a colorimetric method to calculate the assessment value of the
extent (and direction) of change in colour of the test specimen when the chromaticity
of the illuminant changes, that is, to assess the color inconstancy of the specimen.
Note 1: Color inconstancy and metamerism are related but distinct. It is related to
changes in the illuminant,
a) Color inconstancy is the extent of change in the colour appearance of a
single specimen.
b) Metamerism is the extent of change in the color difference between two
specimens.
This Standard provides a method for assessing a) but not b).
Note 2: The results of this method and the results of the visual assessments are
comparable only if the visual assessment is carried out under the following
conditions:
a) Illumination with the same spectral power distribution as the colorimeter is
used;
b) The illuminance of the illuminator irradiating the specimen is 1 000 lx ~ 4
000 lx;
c) It is evaluated by persons who fully meet the relevant observation conditions.
This Standard applies to textile fabrics.

Basic Data

Standard ID	GB/T 35259-2017 (GB/T35259-2017)
Description (Translated English)	Textiles -- Tests for colour fastness -- Method for the instrumental assessment of the colour inconstancy of a specimen with change in illuminant (CMCCON02)
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	W04
Classification of International Standard	59.080.01
Word Count Estimation	10,131
Date of Issue	2017-12-29
Date of Implementation	2018-07-01
Regulation (derived from)	National Standards Bulletin 2017 No. 32
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China