1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-20096-1 SANS 10594:2007Edition 1ISO 10594:2006Edition 2SOUTH AFRICAN NATIONAL STANDARD Micrographics Rotary camera systems Test target for
4、 checking performance This national standard is the identical implementation of ISO 10594:2006 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 f
5、ax: 012 344 1568 international code +27 12 www.stansa.co.za Standards South Africa SANS 10594:2007 Edition 1 ISO 10594:2006 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee StanSA TC 171, Document management application
6、s, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in August 2007. Reference numberISO 10594:2006(E)ISO 2006INTERNATIONAL STANDARD ISO10594Second edition2006-09-15Micrographics Rotary camera systems Test t
7、arget for checking performance Micrographie Systmes de camras cintiques Cible de contrle pour vrifier la performance SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 10594:2006(E) PDF disclaimer This PDF file may contain emb
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11、cified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office
12、Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reservedSANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO
13、10594:2006(E) ISO 2006 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Description of the test target. 2 4.1 Characteristics of the base 2 4.2 Test target layout 2 4.3 Contrast . 2 4.4 Identification 2 5 Microfilming
14、 of the test target . 5 5.1 Exposure setting. 5 5.2 Feed 5 5.3 Number of exposures. 5 6 Test target evaluation procedure 5 6.1 Microscope 5 6.2 Mechanical performance 5 6.3 Optical quality (resolving power) 5 6.4 Reduction ratio 5 6.5 Legibility test. 6 7 Results of the tests. 6 Annex A (informative
15、) Characteristics of rotary camera 8 Bibliography . 10 SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 10594:2006(E) iv ISO 2006 All rights reservedForeword ISO (the International Organization for Standardization) is a worl
16、dwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on
17、that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted i
18、n accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard
19、 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 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 10594 was prepared by Te
20、chnical Committee ISO/TC 171, Document management applications, Subcommittee SC 1, Quality. This second edition cancels and replaces the first edition (ISO 10594:1997), which has been technically revised. SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemai
21、ling clients of the SABS .ISO 10594:2006(E) ISO 2006 All rights reserved vIntroduction This International Standard has been prepared to provide a means of checking the quality of output of rotary camera systems. Rotary cameras have certain characteristics that require a different form of test target
22、 from that specified for checking planetary cameras in ISO 10550. The processes of microfilming may result in the production of an image that is in some way inferior to that of the original document. In order to keep such deterioration within acceptable limits, the output of the camera needs to be c
23、hecked regularly so that faults can be corrected and any necessary adjustments made. SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 10594:2007This s tandard may only be used and printed by approved subscription and freema
24、iling clients of the SABS .INTERNATIONAL STANDARD ISO 10594:2006(E) ISO 2006 All rights reserved 1Micrographics Rotary camera systems Test target for checking performance 1 Scope This International Standard specifies a test target and a method for checking the optical and mechanical performances of
25、rotary cameras used for producing 16 mm microfilm. This test target and method can be used for evaluating the performance of cameras (e.g. before purchase to establish initial reference), acceptance tests (e.g. confirming purchase specifications after maintenance), and routine checking (e.g. weekly
26、or monthly). NOTE The characteristics of a rotary camera are indicated in Annex A. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the
27、 referenced document (including any amendments) applies. ISO 5-2:2001, Photography Density measurements Part 2: Geometric conditions for transmission density ISO 5-3:1995, Photography Density measurements Part 3: Spectral conditions ISO 5-4:1995, Photography Density measurements Part 4: Geometric co
28、nditions for reflection density ISO 446, Micrographics ISO character and ISO test chart No. 1 Description and use ISO 2471:1998, Paper and board Determination of opacity (paper backing) Diffuse reflectance method ISO 3334, Micrographics ISO resolution test chart No. 2 Description and use ISO 6196-1,
29、 Micrographics Vocabulary Part 1: General terms ISO 6196-2, Micrographics Vocabulary Part 2: Image positions and methods of recording ISO 6196-3, Micrographics Vocabulary Part 3: Film processing ISO 6196-4, Micrographics Vocabulary Part 4: Materials and packaging ISO 6196-5, Micrographics Vocabulary
30、 Part 5: Quality of images, legibility, inspection ISO 6196-6, Micrographics Vocabulary Part 6: Equipment SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 10594:2006(E) 2 ISO 2006 All rights reserved3 Terms and definitions F
31、or the purposes of this document, the terms and definitions given in ISO 6196-1, ISO 6196-2, ISO 6196-3, ISO 6196-4, ISO 6196-5 and ISO 6196-6 apply. 4 Description of the test target 4.1 Characteristics of the base The test target shall be made on a white opaque base. Its visual diffuse reflection d
32、ensity, measured as specified in ISO 5-3 and ISO 5-4, shall not be more than 0,08. Its opacity, measured as specified in ISO 2471, shall be over 85 %. This test target shall be positive-appearing. 4.2 Test target layout The test target shall comprise the following, arranged as shown in Figures 1 and
33、 2 (ISO test chart No. 1 shall comply with ISO 446 and ISO test chart No. 2 shall comply with ISO 3334): 3 double columns, one each at the right, centre, and left of the target, consisting of groups either of ISO test chart No. 1 characters, ranging from character 56 to character 280, in a line, or
34、of ISO test chart No. 2 patterns, ranging from 7.1 to 1.4; 2 series of lines composed of upper-case and lower-case printed characters arranged in portrait form in the centre of the left side of the target and in landscape form in the centre of the right side; 2 series of 2 columns of frequency ladde
35、r patterns of 1.8, 2.0 line pairs/millimetre, to the left of centre; and 2.5, 3.2 line pairs/millimetre, to the right of centre; at least one reference scale, graduated in millimetres, between 2 frequency ladder patterns; an arrow to indicate the direction of feed, large enough to permit measurement
36、 of density (see 4.3) and parallel to the columns of frequency ladder patterns; 2 perpendicular lines, one 220 mm in length, the other 200 mm in length (parallel to the frequency ladders), that cross within the target. The intersection is marked with a circle to indicate their use as an orthogonalit
37、y check. The ends of the lines are clearly marked and their lengths shown on the test target, for use in checking effective reduction ratio. 4.3 Contrast When measured in accordance with ISO 5-3 and ISO 5-4, the minimum difference in visual diffuse density between the base of the target and the prin
38、ted features, e.g. the arrow (see 4.2), shall be 1,3. 4.4 Identification The following elements shall appear, as text (excluding quote marks), on the test target: “rotary camera test target”; “certifying agent /source of issue”. SANS 10594:2007This s tandard may only be used and printed by approved
39、subscription and freemailing clients of the SABS .ISO 10594:2006(E) ISO 2006 All rights reserved 3Figure 1 Layout for test target with ISO test chart No. 1 SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 10594:2006(E) 4 ISO
40、 2006 All rights reservedFigure 2 Layout for test target with ISO test chart No. 2 SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 10594:2006(E) ISO 2006 All rights reserved 55 Microfilming of the test target 5.1 Exposure s
41、etting The exposure should be set to produce a background density of the microimage of the test target within the range 1,0 to 1,3, measured in accordance with ISO 5-2 and ISO 5-3. To check the background density, film a blank sheet of the same type of paper if available from the supplier, as used f
42、or the test target and measure the density of the microimage. If blank target stock is not available, use a plain white paper of 85 % reflectance as measured in accordance with ISO 5-4:1995. Be certain to re-set the camera exposure to the correct value for the documents being filmed. 5.2 Feed Feed t
43、he test target into the rotary camera in the direction of the arrow (see Figures 1 and 2). If the width of the camera aperture exceeds the size of the test target, move the target along the aperture and film it as many times as are necessary to cover the entire width. If the width of the camera aper
44、ture is less than the size of the test target, cut the test target in the direction of the arrow, into strips that fit the aperture and film all the strips in succession. 5.3 Number of exposures For set up and after major repairs, microfilm the test target a minimum of 10 times. Number the microimag
45、es from 1 to 10 for the control. For routine production, it is not necessary to film the target 10 times. In the case of a camera that microfilms the front and back sides of the document simultaneously (duplex), the test shall be performed checking both the front and rear field. If the camera is cap
46、able of microfilming multiple rolls of film simultaneously, the above evaluation method shall be repeated for each roll. If only a portion of the photographic field is used in production, the above evaluation method may be applied to evaluate only that portion of the photographic field used. 6 Test
47、target evaluation procedure 6.1 Microscope Use a microscope that has a good quality achromatic objective, a magnification between 50:1 and 150:1 and some means of measuring image size. 6.2 Mechanical performance If there is any defect in the mechanical transport of the test target or film, some line
48、s of the ladder patterns will appear blurred on the microimage. Examine the ladder patterns for signs of blurring whether general or intermittent (see 6.3). 6.3 Optical quality (resolving power) Examine the microimages of the test charts and determine the resolving power in accordance with ISO 446 o
49、r ISO 3334, paying particular attention to any blurring (see 6.2). 6.4 Reduction ratio Check the cameras reduction ratio by comparing the length of the reference lines on the original test target with the length of their microimage. SANS 10594:2007This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 10594:2006(E) 6 ISO 2006 All rights reserved6.5 Legibility test To check legibility, examine t
