GB/T 22399-2008 English PDF

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GB/T 22399-2008: Photography -- Processing chemicals -- Specifications for Sodium hydroxide
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22399-2008	154	Add to Cart	3 days	Photography -- Processing chemicals -- Specifications for Sodium hydroxide	Valid

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Basic data

Standard ID: GB/T 22399-2008 (GB/T22399-2008)
Description (Translated English): Photography -- Processing chemicals -- Specifications for Sodium hydroxide
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G84
Classification of International Standard: 37.040.30
Word Count Estimation: 8,863
Date of Issue: 2008-09-24
Date of Implementation: 2009-05-01
Quoted Standard: GB/T 20432.1-2006; GB/T 20432.5-2007; GB/T 20432.6-2008; GB/T 20432.7-2007
Adopted Standard: ISO 3617-1994, IDT
Regulation (derived from): National Standard Approval Announcement 2008 No.16 (Total No.129)
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 photographic grade sodium hydroxide (Hazard: <>) purity requirements and test methods for testing purity.

GB/T 22399-2008: Photography -- Processing chemicals -- Specifications for Sodium hydroxide

---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.
Photography. Processing chemicals. Specifications for Sodium hydroxide ICS 37.040.30 G84 National Standards of People's Republic of China GB/T 22399-2008/ISO 3617.1994 Photography - Processing chemicals sodium hydroxide (ISO 3617.1994, IDT) Posted 2008-09-24 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is identical with ISO 3617.1994 "Photography - Processing chemicals sodium hydroxide norms" (in English). This standard is equivalent translation ISO 3617.1994. For ease of use, this standard made the following editorial changes. --- "This International Standard" or "ISO 3617" to "this standard"; "." --- With a decimal point instead of a comma as the decimal point, ""; --- Delete ISO 3617.1994 Foreword Introduction; --- International standards set forth in Chapter 2, "Normative references" instead equivalents translate national standards. Please note that some of the content of this standard may involve patents, the issuing authority of this standard should not bear the responsibility to identify these patents. Appendix A of this standard is a normative appendix. The standard proposed by China Petroleum and Chemical Industry Association. The photosensitive material standard by the National Standardization Technical Committee (SAC/TC102) centralized. This standard was drafted. China Lucky Film Group Corporation Baoding Lucky Chemical Co., photography. Drafters of this standard. Jingbo places. GB/T 22399-2008/ISO 3617.1994 Photography - Processing chemicals sodium hydroxide

1 Scope

This standard specifies the photographic grade potassium hydroxide (danger. "C") Test Method 1) purity requirements and test purity. 1) Hazard warning symbol as defined in GB/T 20432.1-2006 in Chapter 4.

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. GB/T 20432.1-2006 Photographic grade chemicals - Test methods - Part 1. General (ISO 10349-1.2002, IDT) Determination of heavy metals and iron content. GB/T 20432.5-2007 Photographic grade chemicals - Test methods - Part 5 (ISO 10349-5.1992, IDT) Determination of halide content. GB/T 20432.6-2008 Photographic grade chemicals - Test methods - Part 6 (ISO 10349-6.1992, IDT) Determination of acidity or alkalinity. GB/T 20432.7-2007 Photographic grade chemicals - Test methods - Part 7 (ISO 10349-7.1992, IDT)

3 Overview

3.1 Physical properties Sodium hydroxide (NaOH) as a white strip, sheet, spheres, granules or powder, relative molecular mass of 40.00. 3.2 Hazard Sodium hydroxide is corrosive (dangerous. "C"), Avoid contact with eyes, skin and clothing. Avoid breathing dust, consult the manufacturer's material Quality safety data sheets (MSDS) to obtain information. 3.3 HANDLING AND STORAGE Sodium hydroxide should be stored in the tag attached to the hermetically sealed plastic container. Hygroscopic exothermic violent reaction with acids.

4 Requirements

Requirement in Table 1. Table 1 Requirements Project Test Limit Test Standard Terms Content (NaOH meter) /% ≥ 95.0 7.1 This standard Heavy metal content (Pb) /% ≤ 0.003 7.2 GB/T 20432.5-2007 Iron content (as Fe) /% ≤ 0.002 7.3 GB/T 20432.5-2007 Halide content (Cl- meter) /% ≤ 0.3 7.4 GB/T 20432.6-2008 Carbonate content (in terms Na2CO3) /% ≤ 2.5 7.5 This standard Calcium and magnesium content (as Mg) /% ≤ 0.06 7.6 This standard Appearance transparent solution without insolubles (except micro floc) 7.7 standard GB/T 22399-2008/ISO 3617.1994 ......

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