GB/T 25808-2010Sulphur black 2BR, 3B 200-percent (English PDF)

Foreword

This standard replaces HG/T 3427-2001 "Sulphur black 2BR, 3B (200%)".

This standard was proposed by the China Petroleum and Chemical Industry

Association.

This standard shall be under the jurisdiction of the National Dye

Standardization Technical Committee (SAC/TC 134).

The drafting organizations of this standard. Tianjin Dyeing Chemical Co., Ltd.,

Shanxi Linfen Dyeing (Group) Co., Ltd., Henan Luoyang Dyeing Co., Ltd.,

Dalian Dyestuff Chemical Co., Ltd., China Salt Yabulai Dyestuff Co., Ltd.,

Shanxi Yinlv Chemical Co., Ltd., Shenyang Chemical Industry Research

Institute Co., Ltd.

1 Scope

This standard specifies the requirements, sampling, test methods, inspection

rules, marking, labeling, packaging, transportation and storage of sulphur black

2BR, 3B 200% (C.I. sulphur black 1, double sulfide black) products.

This standard applies to the product quality control of sulphur black 2BR, 3B

200%.

Structure. the sulfides of the following intermediates.

CAS RN. 1326-82-5

2 Normative references

The provisions in following documents become the provisions of this Standard

through reference in this Standard. For the dated references, the subsequent

amendments (excluding corrections) or revisions do not apply to this Standard;

however, parties who reach an agreement based on this Standard are

encouraged to study if the latest versions of these documents are applicable.

For undated references, the latest edition of the referenced document applies.

GB/T 2374-2007 General rules for test dyeing of dyestuffs

GB/T 2376-2003 Sulphur dyes - Determination of dyeing shade and relative

strength

GB/T 2381-2006 Dyestuffs and intermediate of dyestuffs - Determination of

content of insoluble matters

GB/T 2386-2006 Dyestuffs and intermediate of dyes - Determination of

moisture content

GB/T 3920-2008 Textiles - Tests for colour fastness - Colour fastness to

rubbing (ISO 105-X12.2001, MOD)

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

washing with soap or soap and soda (ISO 105-C10.2006, MOD)

GB/T 3922-1995 Textiles - Testing method for colour fastness to perspiration

(eqv ISO 105-E04.1994)

Light

black 6 3 ~ 4 4 4 ~ 5 4 4 ~ 5 4 ~ 5 4 4 ~ 5 4 ~ 5

2 ~

1 ~

Note. 6% (owf) is equivalent to light black stain standard depth.

4 Sampling

TAKE samples by batch, using the products mixed uniformly by the

manufacturer for one time as a batch. The number of barrels sampled per

batch shall comply with the requirements of 7.6 in GB/T 6678-2003.The

packaging of the sampled product must be intact AND do not allow external

contaminants to fall into the product during sampling. USE the probe to take

sample from the top, middle, and bottom parts of the barrel; the total amount of

sample taken is not less than 200 g. Fully MIX the sample uniformly; CONTAIN

it into two clean, dry and sealed vessels; ATTACH labels; INDICATE the

product name, lot number, manufacturer name, sampling date and location;

USE one for inspection and another for reference.

5 Test method

5 g of dyeing cotton or cotton yarn, bath ratio 1.40, AND dyeing depth. 1.5%

(owf).