ANSI-IT4.152-2001.pdf
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1、 ANSI/I3A IT4.152-2001 for Photography Processing Chemicals Specifications for Formaldehyde 37% Solution with Stabilizer ANSI/I3A IT4.152-2001 ANSI/I3A IT4.152-2001 Revision their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, mar
2、keting, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or aut
3、hority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National St
4、andard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling
5、or writing the American National Standards Institute. American National Standard Published by American National Standards Institute, Inc. 25 West 43rd Street, New York, NY 10036 Copyright 2002 by American National Standards Institute, Inc. All rights reserved. No part of this publication may be repr
6、oduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher. Printed in the United States of America i Contents Page Forewordii 0Introduction.iii 1Scope . 1 2Normative references. 1 3General. 1 4Requirements. 2 5Reagents and glassware 2 6Samp
7、ling. 2 7Test methods 2 Table 1Summary of requirements 2 ii Foreword(This foreword is not part of American National Standard ANSI/I3A IT4.152-2001.) This standard is one of a series of standards establishing criteria of purity for chemi- cals used in processing photographic materials. In the current
8、 review process, this series of standards is being updated and revised in format. Many of the standards in this series, but not all, also exist as standards of the International Organization for Standardization (ISO). The current updates and revisions are in accord with that be- ing done for the ISO
9、 standards. In an effort to promote the concept of international standardization, references to ISO standards have been left in place. Suggestions for the improvement of this standard will be welcome. They should be sent to the International Imaging Industry Association, Inc. (I3A), 550 Mamaroneck A
10、venue, Suite 307, Harrison, NY 10528-1216, e-mail: i3astdsi3a.org. This standard was processed and approved for submittal to ANSI by I3A Technical Committee IT4 on Photographic Processing. Committee approval of the standard does not necessarily imply that all committee members voted for its approval
11、. At the time it approved this edition of the standard, the IT4 Committee had the following members: Joseph M. Rao, Chairman John Gignac, Secretary Organization RepresentedName of Representative International Imaging Industry Association, Inc. (I3A) . Jan Carlock Linda Crosby Kunihiro Fujiwara Ronal
12、d A. Klein Laszlo Papai Anthony Jarkowsky General Chemical Corporation. Mark Dulik Photo Marketing Association International. Herb Stein Photographic Society of America, Inc. . Grant Haist Individual Experts Peter Krause Norman Newman Joseph M. Rao Subcommittee IT4-1 on Specifications for Photograph
13、ic Chemicals, which was re- sponsible for this edition, had the following members: Joseph M. Rao, Chairman-protemJan Carlock Linda Crosby Mark Dulik Kunihiro Fujiwara Norman Newman Laszlo Papai Herb Stein iii 0 Introduction 0.1 This standard is one of a series that establishes criteria of purity for
14、 chemicals used in processing photographic materials. General test methods and procedures cited in this standard are compiled in Parts 1, 5, and 7 of ISO 10349. This standard is intended for use by individuals with a working knowledge of analyti- cal techniques, which may not always be the case. Som
15、e of the procedures utilize caustic, toxic, or otherwise hazardous chemicals. Safe laboratory practice for the handling of chemicals requires the use of safety glasses or goggles and other protec- tive apparel such as rubber gloves, face masks or aprons where appropriate. Normal precautions required
16、 in the performance of any chemical procedure shall be exercised at all times, but care has been taken in this standard to provide warnings for hazardous materials. Hazard warnings designated by a letter enclosed in angle brackets, , are used as a reminder in those steps detailing handling operation
17、s and are defined in ISO 10349-1. More detailed information regarding hazards, han- dling, and use of these chemicals may be available from the manufacturer. 0.2 This standard provides chemical and physical requirements for the suitability of a photographic-grade chemical. The tests correlate with u
18、ndesirable photographic ef- fects. Purity requirements are set as low as possible consistent with these photo- graphic effects. These criteria are considered the minimum requirements necessary to assure sufficient purity for use in photographic processing solutions, except that if the purity of a co
19、mmonly available grade of chemical exceeds photographic process- ing requirements and if there is no economic penalty in its use, the purity require- ments have been set to take advantage of the availability of the higher quality material. Every effort has been made to keep the number of requirement
20、s to a minimum. Inert impurities are limited to amounts which will not unduly reduce the assay. All tests are performed on samples “as received“ to reflect the condition of materials furnished for use. Although the ultimate criterion for suitability of such a chemical is its successful performance i
21、n an appropriate use test, the shorter, more economical test methods described in this standard are generally adequate. Assay procedures have been included in all cases where a satisfactory method is available. An effective assay requirement serves not only as a safeguard of chemical purity, but als
22、o as a valuable complement to the identity test. Identity tests have been included whenever a possibility exists that another chemical or mixture of chemicals could pass the other tests. All requirements listed in clause 4 are mandatory. The physical appearance of the material and any footnotes are
23、for general information only and are not part of the re- quirements. 0.3 Efforts have been made to employ tests that are capable of being run in any nor- mally equipped laboratory and, wherever possible, to avoid tests that require highly specialized equipment or techniques. Instrumental methods hav
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