GB/T 25802-2017Disperse brilliant blue E-4R (C.I. Disperse blue 56) (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 25802-2010 "Disperse Brilliant Blue E-4R (CI Disperse Blue 56)", compared with GB/T 25802-2010, in addition to The main technical changes outside the editorial changes are as follows.

--- Increased colorimetric color index (see 3.1);

--- Modify the dispersion index (see 3.1, 2010 edition 3.2);

--- Modify harmful aromatic amine control indicators and test methods (see 3.1, 5.8, 2010 edition of 3.2, 5.8);

--- Appearance assessment method to increase the provisions of the light source (see 5.1, 2010 version 5.1);

--- Modify the bath ratio requirements, dye bath preparation methods and color light and strength assessment method (see 5.2, 2010 edition 5.2).

1 Scope

This standard specifies the requirements of the scattered brilliant blue E-4R (CI Disperse Blue 56, Disperse Blue 2BLN) products, sampling, test methods, inspection rules As well as logos, labels, packaging, shipping and storage.

This standard applies to Disperse Brilliant Blue E-4R product quality control.

Molecular formula: C14H9BrN2O4. Relative molecular mass: 349.14 (By International Relative Atomic Weight in 2013). CAS RN: 31810-89-6.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 2374-2017 dye determination of the general conditions for dyeing

Disperse dyes GB/T 2394-2013 Determination of color intensity and light

Determination of GB/T 2397 disperse dye lifting force

Textiles - Tests for color fastness - Color fastness to rubbing GB/T 3920-2008

Textiles - Tests for color fastness - Color fastness to washing - GB/T 3921-2008

Textiles - Tests for color fastness - Color fastness to perspiration GB/T 3922-2013

GB/T 4841.1-2006 Dyeing standard depth color card 1/1

GB/T 5540 Disperse dispersions - Determination of two - layer filter paper filtration

GB/T 5541 disperse dyes Determination of high temperature dispersion stability Double filter paper filtration

Textiles Tests for color fastness Color fastness to dry heat (except hot pressing) GB/T 5718-1997

Textiles Tests for color fastness Color fastness to hot press GB/T 6152-1997

General principles of sampling of chemical products GB/T 6678-2003

Textiles Tests for color fastness - Color fastness to artificial light - Xenon arc

Determination of coloring rate of high temperature dyeing of disperse dyes

Determination and determination of 23 kinds of harmful aromatic amines in GB 19601 dye products

GB 20814 dye products in the determination of heavy metal elements

GB/T 24101 dye products 4-amino-azobenzene limit and determination

GB/T 27597 Determination of dye diffusion properties