ISO 27668-1:2017
(Main)Gel ink ball pens and refills — Part 1: General use
Gel ink ball pens and refills — Part 1: General use
ISO 27668-1:2017 establishes minimum quality requirements for gel ink ball pens (refillable and non-refillable) and refills for general use. Additional requirements for gel ink ball pens for documentary use are given in ISO 27668‑2.
Stylos à bille à encre gel et recharges — Partie 1: Utilisation générale
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 27668-1
Third edition
2017-11
Gel ink ball pens and refills —
Part 1:
General use
Stylos à bille à encre gel et recharges —
Partie 1: Utilisation générale
Reference number
ISO 27668-1:2017(E)
©
ISO 2017
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ISO 27668-1:2017(E)
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ii © ISO 2017 – All rights reserved
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ISO 27668-1:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 4
4.1 Tip classification . 4
4.2 Shapes and dimensions of refills . 4
4.3 Performance . 5
4.3.1 Writing performance . 5
4.3.2 Strike through. 5
4.3.3 Drying time . 5
4.3.4 Reproducibility . 5
4.3.5 Water resistance . . . 6
4.3.6 Light resistance . 6
4.3.7 Cap-off time . 6
4.3.8 Shelf life . 6
5 Test equipment and accessories . 6
5.1 Write test machine . 6
5.2 Performance testing paper . 6
5.3 Eraser . 7
5.4 Reproducibility apparatus . 7
5.5 Light test apparatus . 7
6 Testing . 7
6.1 Sampling . 7
6.2 Climatic conditions for testing . 7
6.3 Procedure . 7
6.3.1 Writing performance test . 7
6.3.2 Strike through test . 8
6.3.3 Drying time test . 8
6.3.4 Reproducibility test . 8
6.3.5 Water resistance test . 8
6.3.6 Light resistance test . 8
6.3.7 Cap-off time test . 8
6.3.8 Shelf life test . 8
7 Designation and marking . 9
7.1 Designation . 9
7.2 Marking . 9
8 Test report . 9
Annex A (informative) Explanatory note on gel ink .10
Bibliography .11
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ISO 27668-1:2017(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 10, Technical product documentation.
This third edition cancels and replaces the second edition (ISO 27668-1:2016), of which it constitutes a
minor revision, with changes in Clause 2 and 5.2.
A list of all parts in the ISO 27668 series can be found on the ISO website.
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ISO 27668-1:2017(E)
Introduction
This document is applicable to gel ink ball pens for general use.
ISO 27668-2 is applicable to gel ink ball pens for documentary use.
For documentary use, some requirements, in addition to those for general use, are necessary
a) to ensure the legibility of lettering, and
b) for the handling and storage of documents over long periods of time (these requirements are often
discussed with the archivist).
An example of documentary use is the preparation of documents that are required as evidence.
Furthermore, pens which meet the requirements for documentary use produce lines which are more
resistant to modification (e.g. attempts to falsify a document) than those for general use.
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INTERNATIONAL STANDARD ISO 27668-1:2017(E)
Gel ink ball pens and refills —
Part 1:
General use
1 Scope
This document establishes minimum quality requirements for gel ink ball pens (refillable and non-
refillable) and refills for general use.
Additional requirements for gel ink ball pens for documentary use are given in ISO 27668-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
ISO 105-B02, Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon arc
fading lamp test
ISO 534, Paper and board — Determination of thickness, density and specific volume
ISO 535, Paper and board — Determination of water absorptiveness — Cobb method
ISO 536, Paper and board — Determination of grammage
ISO 868, Plastics and ebonite — Determination of indentation hardness by means of a durometer (Shore
hardness)
ISO 2144, Paper, board and pulps — Determination of residue (ash) on ignition at 900 degrees C
ISO 5627, Paper and board — Determination of smoothness (Bekk method)
ISO 8791-4, Paper and board — Determination of roughness/smoothness (air leak methods) — Part 4:
Print-surf method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
pen
writing instrument equipped with a feeding system which deposits a writing fluid on a surface
Note 1 to entry: It is available in refillable or non-refillable (disposable) form.
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ISO 27668-1:2017(E)
3.2
ball pen
pen with a writing fluid feeding system based on a rotatable ball writing tip integrated either within
the pen itself or within a refill
3.3
gel ink ball pen
ball pen which deposits a writing fluid whose viscosity decreases markedly with rotation of the ball when
writing and increases back to or near to the original viscosity in non-movement, i.e. when not writing
Note 1 to entry: See Annex A.
3.4
cartridge
disposable container for the writing fluid, which is detached when empty and replaced by a (new) full
container
Note 1 to entry: Adapted from ISO 9175-1:1988, 3.4.
3.5
refill
identifiable assembly of components, usually removable from a complete pen, with which it is possible
to write independently of the complete pen, but which lacks either characteristics or components which
would make it suitable for use as a pen
3.6
write test machine
device for mechanically generating a line with a pen or refill on a writing surface and which can be
adjusted for
— a writing angle between 60° and 90°,
— writing lo
...
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