ISO 8514-1:1992

INTERNATIONAL
85144
STANDARD
First edition
1992-01-15
Micrographics - Alphanumeric computer output
microforms - Quality control -
Part 1:
Characteristics of the test slide and test data
- Microformes COM alphanum&-iques - Contrble de la
Micrographic
qua/it6 -
Partie I: Caractkistiques du cadre de surimpression et des donnGes-test
--I_
--
Reference number
IS0 8514-1:1992(E)
---_--~.--_- -

---------------------- Page: 1 ----------------------
IS0 8514=1:1992(E)
Foreword
lS0 (the lnternational 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 IS0
technical committees. 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, govern-
mental and non-governmental, in liaison with ISO, also take part in the
work. IS0 collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Inter-
national Standard requires approval by at least 75 % of the member
bodies casting a vote.
International Standard IS0 8514-1 was prepared by Technical Committee
ISO/TC 171, Micrographics and optical memories for document and im-
age recording, storage and use.
IS0 8514 consists of the following parts, under the general title Micro-
graphics - Alphanumeric computer output microforms - Quality con-
trol:
- Part I: Characteristics of the test slide and test data
- Part 2: Method
6 IS0 1992
All rights reserved. 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 the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Genhve 20 l Switzerland
Printed in Switzerland
ii

---------------------- Page: 2 ----------------------
IS0 8514-1:1992(E)
Introduction
The continued advancement and expansion of alphanumeric computer
output microforms (alphanumeric COM) for the storage of information
indicates that there is a need to establish valid, reliable methods by
which the quality of the images can be controlled. This is necessary if
consistent usable output is desired. Of primary importance in the pro-
duction of microforms containing alphanumeric information is the legi-
bility of the information presented to the user. This is true whether the
microform used is the original (first generation) or a duplicate.
IS0 8514 specifies a method for setting up and controlling the quality of
computer output microforms (COM) and specifies a test form slide and
test data to be used for applying this method. It applies to microforms
containing variable data produced using a cathode-ray tube, light-
emitting diodes or a laser, and fixed data such as that contained on a
form slide, with effective reduction ratios of I:24 through 1148, in ac-
cordance with IS0 9923. This International Standard applies only to COM
recorders that use a physical form slide.
Since it is not possible to supply a single International Standard for all
the various systems and equipment configurations that are in use, it is
necessary to establish test guidelines whereby the user can establish
and maintain a given level of performance using the minimum of soph-
isticated equipment. To carry out the testing described in this part of
IS0 8514, the most that is required is a densitometer and a microscope.
If they are not available it is possible to conduct the tests, once a refer-
ence sample is established, using only a microform reader.
The method requires a test form slide, hereunder called a “test slide”,
and test data generated from the COM image generator.

---------------------- Page: 3 ----------------------
This page intentionally left blank

---------------------- Page: 4 ----------------------
IS0 8514-1:1992(E)
INTERNATIONAL STANDARD
Micrographics - Alphanumeric computer output
- Quality control -
microforms
Part 1:
Characteristics of the test slide and test data
IS0 5-4:1983, Photography - Density measurements
1 Scope
- Part 4: Geometric conditions for ref7ection
density.
This part of IS0 8514 specifies the characteristics of
the test slide and the test data used for controlling
IS0 446:1991, Micrographics - IS0 character and
the quality of alphanumeric COM microforms.
/SO test chart No. I - Description and use.
IS0 8514-2 describes the method itself.
IS0 3334:1989, Micrographics - IS0 resolution test
IS0 8514-1 and IS0 8514-2 apply only to COM re-
- Description and use.
chart No. 2
corders that use a physical form slide.
IS0 6196-7:---l), Micrographics - Vocabulary -
Part 07: Computer micrographics.
2 Normative references
IS0 8514-2: 1992, Alphanumeric computer output
The following standards contain provisions which,
microforms - Quality control - Part 2: Method.
through reference in this text, constitute provisions
of this part of IS0 8514. At the time of publication,
the editions indicated were valid. All standards are IS0 9923:-‘1, Micrographics - Transparent A6
microfiche image arrangements.
subject to revision, and parties to agreements based
on this part of IS0 8514 are encouraged to investi-
gate the possibility of applying the most recent edi-
tions of the standards indicated below. Members of
IEC and IS0 maintain registers of currently valid
3 Definitions
International Standards.
For the purposes of this part of IS0 8514, the defi-
IS0 5-2: 1991, Photography - Density measurements
nitions given in IS0 6196-7 and the following de&
- Part 2: Geometric conditions for transmission
nition apply.
density.
3.1 test slide: A form slide, designed for use in
IS0 5-3:1984, Photography - Density measurements
monitoring the quality of output from a COM system.
- Part 3: Spectral conditions.
1) To be published.

---------------------- Page: 5 ----------------------
IS0 8514=1:1992(E)
opaque pattern (B) and the background of the art-
4 Description of the original artwork
work shall be at least 2,0.
The original artwork from which the test slide is
made shall be as the test slide shown in figure I*) 4.3 Test chart area @
and described in 4.1 to 4.6.
The test chart area consists of the IS0 test chart
NOTE 1 All dimensions are from the usual size as indi-
No. 1 characters from 45 to 280 (extension of IS0
cated in 4.1 (270,9 mm x 335,3 mm).
test chart No. 1 specified in IS0 446) and the IS0
resolution test chart No. 2, patterns 1 to 10, in ac-
The specified values which are valid for a I:1 ratio,
cordance with IS0 3334.
shall be checked on the test slide by multiplying
them by the reduction indicated by the manufacturer
4.4 Density balancing areas @
(see 5.2). The quality of the original artwork shall be
such that it enables test slides conforming to this
The density balancing areas are composed of nine
part of ISO 8514 to be produced.
25 lines per centimetre (65 lines per inch) halftones
ranging from 10 % to 90 74 in increments of 10 %.
4.1 Alignment grid 0
Each is identified by a number, one-half white and
one-half black, used as reference when analysing
The alignment grid shall comprise elements from a
the scale.
standard grid of 132 characters per line by 64 lines
per page, located along each side and along the
4.5 COM character legibility test areas @
median lines of the test slide.
The COM character legibility test areas consist of
The grid shall have a height of 270,9 mm and width
five identical patterns located in the centre and near
of 335,3 mm. The dimensional tolerance shall be
the corners of the test slide.
+0,1 mm.
-
Each pattern contains the c
...