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GB/T 9864-2008: Method for determination of silver in photographic films, papers, emulsions, fixing baths, effluents, sludges or residues
Status: Valid GB/T 9864: Evolution and historical versions
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Method for determination of silver in photographic films, papers, emulsions, fixing baths, effluents, sludges or residues
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GB/T 9864-2008
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| GB/T 9864-1988 | English | 439 |
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Method for determination of silver in photographic films, papers, emulsions, fixing baths, effluents, sludges or residues
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GB/T 9864-1988
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PDF similar to GB/T 9864-2008
Basic data | Standard ID | GB/T 9864-2008 (GB/T9864-2008) | | Description (Translated English) | Method for determination of silver in photographic films, papers, emulsions, fixing baths, effluents, sludges or residues | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G80 | | Classification of International Standard | 37.040.20 | | Word Count Estimation | 24,249 | | Date of Issue | 2008-09-24 | | Date of Implementation | 2009-05-01 | | Older Standard (superseded by this standard) | GB/T 9864-1988 | | Quoted Standard | GB/T 20432.1-2006; ISO 6353-1: 1982; ISO 6353-2: 1983; ISO 6353-3 | | Adopted Standard | ANSI/PIMA IT4.42-1998, 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 provides a variety of photographic products and their production, silver mud generated during processing, residues, determination method of processing a silver solution and the amount of waste, including sampling, preservation and analysis of samples. Atomic absorption spectrometry (AAS) can be directly used in many types of samples. A suitable waste digestion and low salt wash water, digestion B applies to the film, paper, silt, resins and concentrates for processing waste. | GB/T 9864-2008: Method for determination of silver in photographic films, papers, emulsions, fixing baths, effluents, sludges or residues
---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.
Method for determination of silver in photographic films, papers, emulsions, fixing baths, effluents, sludges or residues
ICS 37.040.20
G80
National Standards of People's Republic of China
Replacing GB/T 9864-1988
Films, papers, emulsions, fixing baths, effluents,
Determination of the amount of silver sludge or residues
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
Table of Contents
Preface Ⅰ
Introduction Ⅱ
1 Scope 1
2 Normative references 1
3 Principle 1
4 Accuracy 2
5 Safety and Handling Precautions 2
6 sampling and sample preparation 3
7 Reagents and materials 9
8 sample preparation 10
9 atomic absorption spectrometry (AAS) 12
10 iodide potentiometric titration analysis (PT) 13
(Normative) Preparation of reagent solution Appendix A 16
References 19
Foreword
This standard is identical with the American National Standard ANSI/PIMAIT4.42.1998 "photographic process --- Determination of silver content" (English
Version). This standard is equivalent to translate ANSI/PIMAIT4.42.1998.
The standard technical content and writing formats and ANSI/PIMAIT4.42.1998 is consistent, for ease of use, made under this standard
Column editorial changes.
a) To be consistent with the original name of national standards and standard name change;
b) Remove ANSI/PIMAIT4.42.1998 preface, instead of the standard "foreword"; as a direct translation of the introduction of this standard
introduction;
c) reference with the GB/T 1.1-2000 specification defined in the introductory phrase of the document instead of the ANSI/PIMAIT4.42.1998 Specification
References introductory phrase file.
The revised standard and replaces GB/T 9864-1988 "Determination of the amount of silver films, papers, emulsions, fixing solution, sewage, sludge or residues
method".
This standard compared with GB/T 9864-1988, the main changes are as follows.
--- According to GB/T 1.1-2000 prepared at the request scope and normative references;
--- Increased principle, accuracy, content security and operational preventive measures (Excerpts Chapter 3, Chapter 4, Chapter 5, 1988 3rd edition
Chapter "Method Synopsis");
--- Revised the sampling, sample preservation and processing, calculation results and other processes (Chapter 6 edition, Chapter 8, Chapter 9, Chapter 10, 1988
Edition Chapter 6, Chapter 7, Chapter 8);
--- Remove the TAA potentiometric titration (1988 Version 8.3);
--- Deleted Appendix B.
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.
The main drafters of this standard. Cao Yongli, Feng.
This standard supersedes the previous editions are.
--- GB/T 9864-1988.
Introduction
Quality of the products, a black and white or color film, photographic paper and not a small amount of unreduced silver fixing, is its temperature, humidity and radiation
Factors contributing stability under various conditions such as shot. Silver color to trace products, and is not being reduced as well as the fixing of unbleached and
Unfixed silver dye image caused unnecessary fog density.
Of course, the silver content in the fixer from the economic point of view and the quality is also very important. Fixer recycling is necessary. Back to Silver
In terms of income, sludge, residue, scrap paper and film in the silver content value is huge. Also in the assessment of raw, partially processed and completely
When processed products, it is necessary to know the content of silver.
Conventional sample preservation technique is not suitable for photosensitive material sample. In processing a solution, usually a silver soluble sulfate form
Formula exists. The analysis of heavy metals in waste samples generally stabilized with nitric acid, but nitric oxide can cause precipitation of silver sulfate. In the absence of nitrate
, The other components in the waste and even silver complex interactions, produce a variety of soluble and insoluble containing silver unstable system
EC. Cyanide iodide solution is to keep the silver in photographic waste solubility and stability of the most effective reagent 1). Cyanide iodide solution is also available for points
Analysis of other samples produced during photographic processing (sludge, residues, etc.).
Need to be reminded that the present standard methods for the analysis of metallic silver. However, these methods generally used for fire assay of precious metals Suppliers
People can not serve as an arbitration method. Precious metals sampling should be more careful, so as to ensure a representative collection of typical samples.
The criteria include flame atomic absorption spectrometry (AAS) 2) and iodide potentiometric titration (PT) two analytical methods. Mentioned method
For sample storage and handling methods.
Once the sample is fixed iodide, cyanide solution, usually AAS analysis samples. The iodide titration requires digestion to dissolve silver and
With the removal of the concentrated sample was boiled in step (digestion A) caused disturbances.
The recommended method is not available for silver analysis sample preparation digestion with standard hydrochloric acid.
1) see reference [5].
2) as the instrument method. inductively coupled plasma atomic emission spectrometry (DCP), direct plasma emission spectrometry (ICP) and X- ray fluorescence spectrometry can
To use. Users are responsible for establishing their relevance.
Films, papers, emulsions, fixing baths, effluents,
Determination of the amount of silver sludge or residues
1 Scope
This standard specifies the silver mud, residue variety of photographic products and their production, processing generated in the process, and waste processing solutions in silver
Determination of the amount, including the sampling, sample preservation and analysis.
Atomic absorption spectrometry (AAS) can be directly used for many types of samples. A method for low-salt waste digestion and washing
Water, digestion method B applies to films, papers, sludge, resins and concentrated waste processing.
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)
The first part of the 1982 chemical analysis reagent 1.. ISO 6353-1 General test methods
ISO 6353-2. 1983 Reagents for chemical analysis - Part 2. Specification of the first series
ISO 6353-3. 1987 Reagents for chemical analysis - Part 3. Specification of the second series
Principle 3
3.1 Flame atomic absorption spectrometry (AAS)
Silver hollow cathode lamp heating the excitation and emission spectra of the ultraviolet radiation comprising silver atoms band. The silver ions in solution is sucked
Flame, when the mercury lamp emitted light by a flame, the silver ions to silver according to Beer's law relationship absorption spectral emissivity see equation (1).
Where.
Ba concentration of silver ions Ag ---;
K --- constant.
Often used to establish the calibration curve method to clear this relationship.
3.2 potentiometric titration analysis (PT)
Iodide solution was titrated with silver ion containing solution, will precipitate silver iodide formed following relationship.
Ag ++ I- → AgI (solid)
Whether silver electrode rod made of silver (10.1.2) or with a suitable reference electrode than choice silver iodide electrode made in
A solution containing silver ions are generated potential.
Occurs when an excess of iodide ions, the silver ion concentration, see formula (2).
Where.
--- 1 Ba concentration of iodide ion.
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