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GB/T 1652-2014: Naphthol AS
Status: Valid GB/T 1652: Evolution and historical versions
PDF similar to GB/T 1652-2014
Basic data | Standard ID | GB/T 1652-2014 (GB/T1652-2014) | | Description (Translated English) | Naphthol AS | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G57 | | Classification of International Standard | 71.100.01; 87.060.10 | | Word Count Estimation | 10,176 | | Date of Issue | 7/8/2014 | | Date of Implementation | 12/1/2014 | | Older Standard (superseded by this standard) | GB/T 1652-2006 | | Quoted Standard | GB/T 601; GB/T 603; GB/T 2384; GB/T 6678-2003; GB/T 6682-2008; GB/T 8170-2008 | | Regulation (derived from) | 2014 National Standards Bulletin No. 18 | | 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 | | Summary | This standard specifies the requirements naphthol AS, sampling, test methods, inspection rules and signs, labels, packaging, transport and storage. This standard applies to quality control Naphthol AS products. | GB/T 1652-2014: Naphthol AS---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Naphthol AS
ICS 71.100.01; 87.060.10
G57
National Standards of People's Republic of China
Replacing GB/T 1652-2006
Naphthol AS
Issued on. 2014-07-08
2014-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 1652-2006 "Naphthol AS", compared with the GB/T 1652-2006, the main technical changes are as follows.
--- Increase the warning (see standard start);
--- Increased CASRN. 92-77-3 (see Chapter 1);
--- Removed on cotton fiber and large red fluid coupling diazo group G after dyeing shade of indicators and measurement methods (2006 edition
Chapter 3, 5.7);
--- Delete the index and determination on cotton fiber and large red fluid coupling diazo group G after staining intensity (2006 edition
Chapter 3, 5.7);
--- Modify all the test items for the factory inspection items (see 6.1; 2006 version 6.1).
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee Dye (SAC/TC134) centralized.
This standard was drafted. Xiasha Hengsheng Chemical Co., Ltd., Shenyang Chemical Research Institute Co., Ltd., the State Quality Supervision, Inspection dye
center.
Drafters of this standard. Long Yan, Han Xiaoqin, Li Xin, Park grams Zhuang Zhou Yu Chung.
This standard replaces the standards previously issued as follows.
--- GB 1652-1979, GB 1652-1994, GB/T 1652-2006.
Naphthol AS
Warning. Use of this standard shall have practical experience of laboratory personnel work. This standard does not point out all of the safety issues. user
We have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies the requirements naphthol AS, sampling, test methods, inspection rules and signs, labels, packaging, transport and storage.
This standard applies to quality control Naphthol AS products.
Structure.
Molecular formula. C17H13O2N
Molecular weight. 263.29 (according to 2009 international relative atomic mass)
CASRN. 92-77-3
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.
Preparation of GB/T 601 chemical reagent standard titration solution
GB/T 603 chemical reagent in test methods - Preparations with
GB/T 2384 Determination of the melting point range of dye intermediates - General method
GB/T 6678-2003 General Principles for Sampling Chemical Products
Laboratory use specifications and test methods GB/T 6682-2008 Analysis
GB/T 8170-2008 revised value represents about rules and limit values \u200b\u200band judgment
3 Requirements
Naphthol AS quality requirements shall be in accordance with Table 1.
Table 1 Quality requirements of naphthol AS
project
index
Excellence Qualified
experiment method
Appearance white to beige or red uniform powder 5.2
Dry goods Melting point/℃ ≥ 247.2 246.0 5.3
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