ISO 12635:2008

SLOVENSKI STANDARD
SIST ISO 12635:2010
01-maj-2010
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SIST ISO 12635:1997
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Graphic technology - Plates for offset printing - Dimensions
Technologie graphique - Plaques pour impression offset - Dimensions
Ta slovenski standard je istoveten z: ISO 12635:2008
ICS:
37.100.10 Reprodukcijska oprema Reproduction equipment
SIST ISO 12635:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 12635:2010

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SIST ISO 12635:2010

INTERNATIONAL ISO
STANDARD 12635
Second edition
2008-12-01

Graphic technology — Plates for offset
printing — Dimensions
Technologie graphique — Plaques pour impression offset —
Dimensions




Reference number
ISO 12635:2008(E)
©
ISO 2008

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SIST ISO 12635:2010
ISO 12635:2008(E)
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©  ISO 2008
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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ii © ISO 2008 – All rights reserved

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SIST ISO 12635:2010
ISO 12635:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Terms and definitions. 1
3 Requirements . 2
3.1 Measurement conditions . 2
3.2 Plate dimensions . 2
3.3 Rectangularity. 3
3.4 Edge waviness for CtP plates. 3
3.5 Cutting burrs for CtP plates. 3
3.6 Plate edge straightness for CtP plates. 4
Annex A (informative) Test method for the edge waviness. 5
Annex B (informative) Test methods for the height of cutting burrs. 7
Annex C (informative) Test method for the plate straightness. 9
Bibliography . 11

© ISO 2008 – All rights reserved iii

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SIST ISO 12635:2010
ISO 12635:2008(E)
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 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, 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 in 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 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 12635 was prepared by Technical Committee ISO/TC 130, Graphic technology.
This second edition cancels and replaces the first edition (ISO 12635:1996). It has been extensively revised in
all sections; requirements for perforations and designations have been deleted.

iv © ISO 2008 – All rights reserved

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SIST ISO 12635:2010
ISO 12635:2008(E)
Introduction
This International Standard stipulates dimensional properties of printing plates for offset printing. While not all
present plate dimensions will conform to this International Standard, the specifications for dimensions serve
as an effort to reduce the multitude of possible formats to a reasonable level that simplifies manufacture and
communications between plate, platesetter and press manufacturers, and the printer.
In this revision, the requirements for perforations and designations have been deleted. According to recent
developments in dimensions of printing plates, especially within the thickness dimension, new thickness
categories have been implemented. Due to the increasing adoption of CtP, additional attributes have been
introduced to be applied to plates with these new devices.

© ISO 2008 – All rights reserved v

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SIST ISO 12635:2010

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SIST ISO 12635:2010
INTERNATIONAL STANDARD ISO 12635:2008(E)

Graphic technology — Plates for offset printing — Dimensions
1 Scope
This International Standard specifies the width, length and thickness of metal lithographic printing plates
(referred to hereafter as “plates”). For plates to be used in computer to plate (CtP) applications, flatness, edge
straightness and burr requirements are also included. These requirements are applicable to unprocessed
plates.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
cutting burr
ridge along the edge of a plate produced by cutting, especially with a blunt knife
2.2
plate width
W
dimension of a printing plate parallel to the cylinder axis (clamping edge)
2.3
plate length
L
dimension of a printing plate in the direction perpendicular to the cylinder axis (clamping edge)
2.4
plate thickness
s
caliper of a coated plate
2.5
edge waviness
degree to which a plate edge conforms to a measurement plane
2.6
plate edge straightness
maximum deviation of the plate edge parallel to the cylinder axis (clamping edge) from a straight line, drawn
from the corners of the plate
2.7
unprocessed plates
plates as received from the manufacturer
© ISO 2008 – All rights reserved 1

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SIST ISO 12635:2010
ISO 12635:2008(E)
3 Requirements
3.1 Measurement conditions
Measurements shall be conducted when both measurement equipment and plates have reached a stabilized
temperature of 21 °C ± 1 °C.
3.2 Plate dimensions
Plates for sheet-fed lithographic use may be of any length, L, or width, W, but shall be specified in increments
of 5 mm where the last whole number digit is 0 or 5. Plates for web lithographic use may be of any length or
width but shall have their width specified in increments of 5 mm where the last whole number digit is 0 or 5
and their length specified in increments of 2 mm where the last whole number digit is 0, 2, 4, 6 or 8. These
requirements are summarized in Table 1.
The tolerances for length and width shall be as shown in Table 1, the measurement conditions of 3.1 shall
apply.
The preferred thicknesses and their tolerances shall be as shown in Table 2.
Table 1 — Plate widths, lengths and their tolerances
Dimensions in millimetres
Process Width Width tolerance Length Length tolerance
W L
W <
...