GB/T 21890-2015Acid brilliant yellow P-4R 150%(C.I. Acid yellow 42) (English PDF)

Foreword

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

This standard replaces GB/T 21890-2008 "Acid brilliant yellow P-4R150% (CI Acid Yellow 42)", and GB/T 21890-2008 phase Ratio, in addition to editorial changes outside the main technical changes are as follows.

--- Modify the scope of representation (see Chapter 1, Chapter 1 of the 2008 edition);

--- Increased shade color measurement indicators (see 3.1);

--- Modify harmful aromatic amine control requirements and test methods (see 31, 57, the 2008 edition of 3.2,5.7.);

--- Remove the water color fastness, increasing the resistance to chlorinated water fastness, color fastness to modify some of the indicators (see 3.2, 2008 Version 3.3);

--- Modify the appearance of expression evaluation method (see 51, 2008 version 5.1.);

--- Altered the bath ratio of representation (see 5.2. 1.1, 5.2. 2.1, the 2008 edition of 5.2.1.1,5.2.2.1).

The standard proposed by China Petroleum and Chemical Industry Association.

1 Scope

This standard specifies the acidic brilliant yellow P-4R150% requirement (CI Acid Yellow 42, weak acid yellow R) products, sampling, test methods, inspection Rules and signs, labels, packaging, transport and storage.

This standard applies to the acidic brilliant yellow P-4R150% product quality control. Structure.

Molecular formula. C32H24N8Na2O8S2 Molecular weight. 758.69 (according to 2009 international relative atomic mass) CASRN. 6375-55-9

2 Normative references

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

General conditions GB/T 2374-2007 Determination of dyes provisions

Determination of GB/T 2378-2012 acid dyes shade and intensity

GB/T 2381-2013 Determination of substance content of dye and dye intermediates insoluble

Determination of GB/T 2386-2014 dyes and dye intermediates moisture

Determination of GB/T 3671.1-1996 water-soluble dye solubility and solution stability

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

GB/T 3921-2008 Textiles Tests for color fastness Colour fastness to soaping

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

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

GB/T 6152-1997 Textiles Tests for color fastness Colour fastness to hot pressing

GB/T 6678-2003 General Principles for Sampling Chemical Products

Determination of GB/T 6688-2008 relative dye strength and color of the instrumental method

GB/T 6693-2009 Determination of dye dust

GB/T 8427-2008 Textiles Tests for color fastness Colour fastness to artificial light. Xenon arc