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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 5714-1997 Textiles—Tests for colour fastness—Colour fastness to sea water and the following main technical changes have been made with respect to GB/T 5714-1997:
——“This standard is applicable to various textiles” is added in Scope (see Clause 1).
——GB/T 6682, GB/T 13765, GB/T 32598 and GB/T 32616 are added in the reference; GB 250-1995, GB 251-1995 and GB/T 6151-1997 are modified to GB/T 250, GB/T 251 and GB/T 6151-2016 respectively; GB 7564 ~ 7568-1987 is adjusted to GB/T 7568.1 ~ GB/T 7568.6; and GB 11404-1989 is adjusted to GB/T 7568.7 (see Clause 2 hereof, Clause 2 of 1997 edition);
——The expression of “the change in colour of the specimen and the staining of the adjacent fabric(s) are assessed by instruments” is added (see Clause 3 hereof);
——The title of Clause 4 is modified from "apparatus and reagents" to "apparatus and materials" (see Clause 4 hereof, and Clause 4 of 1997 edition);
——The tolerances are added for the specimen size and the pressure of the specimen device; "other devices may be used provided that equivalent results are obtained” is adjusted from note to text (see 4.1 hereof, 4.1 of 1997 edition);
——"GB/T 6151-1997, 8.1" is adjusted to "GB/T 6682"; the requirement of "sodium chloride shall be chemically pure or above” is added; the note "sodium chloride solution should be prepared immediately before use” is added (see 4.3 hereof, 4.2 of 1997 edition);
——The note “other types of fibers may be used with reference to the same or similar adjacent fibers” is added (see 4.4.2 hereof);
——Acetate or triacetate fiber standard adjacent fabric is deleted (see Table 1 hereof, Table 1 of 1997 edition);
——The contents of 4.5 are divided into 4.5 and 4.6 (see 4.5 and 4.6 hereof, 4.5 of 1997 edition);
——4.7, 4.8, 4.9 and 4.10 are added (see 4.7, 4.8, 4.9 and 4.10 hereof);
——The tolerances are added for the specimen size (see Clause 5 hereof);
——The requirements of "liquor ratio is about 50:1" and "allow it to remain in the solution at room temperature for 30 min. Press and move it from time to time to ensure good and uniform penetration of the liquor” are added; and the words of “if less than 10 specimens are prepared, all 11 plates must still be used to maintain the correct nominal pressure” are added. (see 6.1 hereof);
——The requirements of “positioning the test device so that the test specimens are in either the horizontal position or the vertical position depending on the type of device available” are added; Figure 1 and Figure 2 are added (see 6.2 hereof);
——The requirements of “assess the change in colour of each specimen and the staining of the adjacent fabric(s) by instruments” are added (see 6.4 hereof);
——The instrumental assessment is added in c), d), e) of the test report respectively; f) and g) are added (see Clause 7);
——"Bibliography" is added (see Bibliography).
This standard is modified in relation to ISO 105-E02: 2013 Textiles—Tests for colour fastness—Part E02: Colour fastness to sea water by redrafting method.
Technical deviations between this standard and ISO 105-E02: 2013 and their reasons are as follows:
——The adjustments of technical difference are made for the normative references in this standard so as to adapt to the technical conditions in China. The adjustment conditions are mainly reflected in Clause 2 "Normative references"; the specific adjustments are as follows:
? GB/T 250 identical to the international standard is used to replace ISO 105-A02;
? GB/T 251 identical to the international standard is used to replace ISO 105-A03;
? ISO 105-A01: 2010 is replaced by GB/T 6151-2016, which is modified in relation to international standard.
? ISO 3696 is replaced by GB/T 6682, which is modified in relation to the international standard;
? GB/T 7568.1 identical to the international standard is used to replace ISO 105-F01;
? ISO 105-F02 is replaced by GB/T 7568.2, which is not identical to the international standard.
? ISO 105-F03 is replaced by GB/T 7568.3, which is modified in relation to the international standard;
? ISO 105-F04 is replaced by GB/T 7568.4, which is modified in relation to the international standard;
? ISO 105-F05 is replaced by GB/T 7568.5, which is modified in relation to the international standard;
? ISO 105-F06 is replaced by GB/T 7568.6, which is modified in relation to the international standard;
? ISO 105-F10 is replaced by GB/T 7568.7, which is modified in relation to the international standard;
? ISO 105-A04 is replaced by GB/T 32598, which is modified in relation to the international standard;
? ISO 105-A05 is replaced by GB/T 32616, which is modified in relation to the international standard;
? Referenced document GB/T 13765 is added.
——Hemp adjacent fabric is added to Table 1.
——“Balance” (4.10) is added.
The following editorial change has been made in this standard:
——The name of the standard is changed to “Textiles—Tests for colour fastness—Colour fastness to sea water”.
This standard was proposed by China National Textile and Apparel Council.
This standard is under the jurisdiction of the National Technical Committee on Textiles of Standardization Administration of China (SAC/TC 209).
The previous editions of this standard are as follows:
——GB 5714-1985, GB/T 5714-1997.
Textiles—Tests for colour fastness—
Colour fastness to sea water
1 Scope
This standard specifies the method for determining the colour fastness to sea water of various textiles.
This standard is applicable to various textiles.
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 250 Textiles—Tests for colour fastness—Grey scale for assessing change in colour (GB/T 250-2008, ISO 105-A02:1993, IDT)
GB/T 251 Textiles—Tests for colour fastness—Grey scale for assessing staining (GB/T 251-2008, ISO 105-A03, 1993, IDT)
GB/T 6151-2016 Textiles—Tests for colour fastness—General principle of testing (GB/T 6151-2016, ISO 105-A01: 2010, MOD)
GB/T 6682 Water for analytical laboratory use—Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)
GB/T 7568.1 Textiles—Tests for colour fastness—Specification for wool adjacent fabric (GB/T 7568.1-2002, ISO 105-F01: 2001, MOD)
GB/T 7568.2 Textiles—Tests for Colour Fastness—Standard Adjacent Fabrics—Part 2: Cotton and Viscose (GB/T 7568.2-2008, ISO 105-F02: 2009, NEQ)
GB/T 7568.3 Textiles—Tests for colour fastness—Standard adjacent fabrics—Part 3: Polyamide (GB/T 7568.3-2008, ISO 105-F03: 2001, MOD)
GB/T 7568.4 Textiles—Tests for colour fastness—Specification for polyester adjacent fabric (GB/T 7568.4-2002, ISO 105-F04: 2001, MOD)
GB/T 7568.5 Textiles—Tests for colour fastness—Specification for acrylic adjacent fabric (GBT 7568.5-2002, ISO 105-F05: 2001, MOD)
GB/T 7568.6 Textiles—Tests for colour fastness—Specification for silk adjacent fabric (GBT 7568.6-2002, ISO 105-F06: 2000, MOD)
GB/T 7568.7 Textiles—Tests for colour fastness—Standard adjacent fabrics—Part 7: Multifibre (GB/T 7568.7-2008, ISO 105-F10: 1989, MOD)
GB/T 13765 Textiles—Tests for colour fastness—Specification for standard adjacent fabric of linen and ramie
GB/T 32598 Textiles—Tests for colour fastness—Method for the instrumental assessment of staining of adjacent fabrics (GB/T 32598-2016, ISO 105-A04: 1989, MOD)
GB/T 32616 Textiles—Tests for colour fastness —Instrumental assessment of change in colour for determination of grey scale rating (GB/T 32616-2016, ISO 105-A05: 1996, MOD)
3 Principle
A specimen of the textile in contact with either two single-fibre adjacent fabrics or a multifibre adjacent fabric is immersed in sodium chloride solution, drained and placed between two plates under a specified pressure in a test device. The specimen and the adjacent fabric(s) are dried separately. The change in colour of the specimen and the staining of the adjacent fabric(s) are assessed by comparison with the grey scales or instrumentally.
4 Apparatus and materials
4.1 Test device
It consists of a frame of stainless steel into which a weight-piece of mass approximately 5kg and a base of 60 mm×115 mm is closely fitted and glass or acrylic-resin plates measuring approximately 60 mm×115 mm×1.5 mm. A pressure of (12.5±0.9)kPa can be applied on composite specimens measuring (40±2)mm×(100±2)mm placed between plates. The test device shall be constructed so that, if the weight-piece is removed during the test, the pressure remains unchanged.
If the dimensions of the composite specimen differ from the size of (40±2)mm×(100±2)mm, the weight-piece used shall be such that a nominal pressure of (12.5±0.9)kPa is applied to the specimen.
Other devices may be used provided that equivalent results are obtained.
4.2 Oven
Its temperature is maintained at (37±2)℃.
4.3 Sodium chloride
It is 30 g/L sodium chloride solution, prepared using grade 3 water, complying with GB/T 6682. The sodium chloride is chemically pure or above.
Note: Sodium chloride solution should be prepared immediately before use.
4.4 Adjacent fabric (see GB/T 6151)
Note: Either 4.4.1 or 4.4.2.
4.4.1 A multifibre adjacent fabric complying with GB/T 7568.7.
4.4.2 Two single-fibre adjacent fabrics, complying with the relevant standards of GB/T7568.1~GB/T7568.6 and GB/T 13765. The first adjacent fabrics shall be made of the same kind of fibre as that of the textile to be tested and the second piece made of the fibre as indicated in Table 1. In the case of blends or intertexture, the first is made of predominating fibre while the second is made of the kind of fibre second in order of predominance or as otherwise specified.
Foreword i
1 Scope
2 Normative references
3 Principle
4 Apparatus and materials
5 Test specimen
6 Procedure
7 Test report
Bibliography
