GB/T 23666-2009 English PDF

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GB/T 23666-2009: 1-naphthol-5-sulfonic acid (L acid)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23666-2009	279	Add to Cart	3 days	1-naphthol-5-sulfonic acid (L acid)	Valid

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Basic data

Standard ID: GB/T 23666-2009 (GB/T23666-2009)
Description (Translated English): 1-naphthol-5-sulfonic acid (L acid)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G56
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 12,154
Date of Issue: 2009-04-24
Date of Implementation: 2009-12-01
Regulation (derived from): PRC National Standard Approval Announcement 2009 No.6 (Total No.146)
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 1-Requirements acid (L acid) products-naphthol-5, sampling, test methods, inspection rules and signs, labels, packaging, transport and storage. This standard for 1-naphthol-5-sulfonic acid product quality control.

GB/T 23666-2009: 1-naphthol-5-sulfonic acid (L acid)

---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.
1 - naphthol-5 - sulfonic acid (L acid) ICS 71.100.01; 87.060.10 G56 National Standards of People's Republic of China Naphthol 5-sulfonic acid (L acid) Posted 2009-04-24 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

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. Shenyang Chemical Research Institute, Shanghai Licheng Chemical Co., Ltd. The main drafters of this standard. Pu Aijun, Chen Yuanchao, Luo group. Naphthol 5-sulfonic acid (L acid)

1 Scope

This standard specifies the requirements naphthol 5-sulfonic acid (L acid) product sampling, test methods, inspection rules and signs, labels, packaging, Transportation and storage. This standard applies to 1-naphthol-5-sulfonate product quality control. Structure. Molecular formula. C10H8O4S Molecular weight. 224.23 (according to 2007 international relative atomic mass) CASRN. 117-59-5

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Preparation of GB/T 601 chemical reagent standard titration solution GB/T 603 chemical reagent test methods in the formulation and preparation of products (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 2381-2006 Determination of substance content of dye and dye intermediates insoluble GB/T 6678-2003 General Principles for Sampling Chemical Products GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) GB/T 8170-2008 revised value represents about rules and limit values \u200b\u200band judgment

3 Requirements

1- naphthol-5-sulfonic acid quality requirements shall be in accordance with Table 1. 11- naphthol-5-sulfonic acid quality requirements of table project index Dry goods tide products Appearance white powder 1-naphthol-5-sulfonate of mass fraction (coupling value) /% ≥ 80.00 ≥ 60.00 1-naphthol-5-sulfonate purity (HPLC) /% ≥ 99.00 ≥ 98.50 The mass fraction of water insoluble /% ≤ 0.10 ......

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