BS ISO 7760-2002 Photography - Processing waste - Determination of hydroquinone《摄影 冲洗废液 对苯二酚含量的测定》.pdf

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1、BRITISH STANDARD BS ISO 7760:2001 Photography Processing waste Determination of hydroquinone ICS 13.030.30; 37.040.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 7760:2001 This British Standard, having been prepared under the direction of the Consumer Products and Se

2、rvices Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 27 March 2002 BSI 27 March 2002 ISBN 0 580 39226 0 National foreword This British Standard reproduces verbatim ISO 7760:2001 and implements it as the UK national standard.

3、 The UK participation in its preparation was entrusted to Technical Committee CPW/42, Photography, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international

4、or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all t

5、he necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international committee any

6、enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a bla

7、nk page, pages 1 to 8, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 7760:2001(E)INTERNATIONAL STANDARD ISO 7760 Second edition 2001

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13、iso.ch Prnietdni wS ztierland ii ISO 7760:2001(E) iiiContents Page Foreword.iv Introduction.v 1 Scope1 2 Normative references1 3 Principle1 4 Reactions2 5 Safety and operational precautions.2 6 Materials and reagents3 7 Apparatus.5 8 Sampling and sample preparation.5 9 Procedure.6 10 Expression of r

14、esults6 11 Test report7 Bibliography8 ISO 7760:2001(E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committe

15、es. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Inte

16、rnational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bod

17、ies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for i

18、dentifying any or all such patent rights. International Standard ISO 7760 was prepared by Technical Committee ISO/TC 42, Photography. This second edition cancels and replaces the first edition (ISO 7760:1986), of which it constitutes a technical revision. ISO 7760:2001(E) vIntroduction This Internat

19、ional Standard is one of a series devoted to the analysis of photographic wastes; it encompasses the field of analysis of the hydroquinone content in a photographic effluent. This International Standard is intended for use by individuals with a working knowledge of analytical techniques. Some of the

20、 procedures use caustic, toxic, or otherwise hazardous chemicals. Safe laboratory practice for the handling of chemicals requires the use of safety glasses or goggles and, in some cases, other protective apparel such as rubber gloves, face masks, or aprons. Normal precautions for the safe performanc

21、e of any chemical procedure must be exercised at all times, but specific details have been provided for hazardous materials. Hazard warnings are designated by a letter enclosed in angle brackets “. These are defined in clause 5 and then used throughout the text. More detailed information on hazards, handling, and use of these chemicals may be available from the manufacturer. Photographic laboratories can establish conformity to effluent regulations only by chemical analysis. If this cannot be done in-house, an outside laboratory should be used.

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