ISO 30012:2016
(Main)Carbon-fibre-reinforced plastics — Determination of the size and aspect ratio of crushed objects
Carbon-fibre-reinforced plastics — Determination of the size and aspect ratio of crushed objects
ISO 30012:2016 specifies test methods for measurement of the size and aspect ratio of crushed carbon-fibre-reinforced plastics (CFRP), especially for recycling purpose. In this International Standard the shape of crushed CFRP, the fragment, is treated as a rectangular shape, and the measurement of the long and short sides of the shape is described. It applies to fragments of the following average dimensions: - length of the long side: 5 mm to 50 mm; - width of the short side: 1 mm to 10 mm. ISO 30012:2016 provides three measuring methods, two methods are manual methods using microscope and scale and the third method is an automatic method using a measuring apparatus. Crushed CFRP obtained from thermosetting or thermoplastic resin matrices are covered by this International Standard. NOTE If the crushed CFRP contain a lot of small fragments and fine particle, it is intended to screen out by a sieve of 1 mm size before the measurement.
Plastiques renforcés de fibres de carbone — Détermination des dimensions et du rapport d'apparence d'objets broyés
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INTERNATIONAL ISO
STANDARD 30012
First edition
2016-02-01
Carbon-fibre-reinforced plastics —
Determination of the size and aspect
ratio of crushed objects
Plastiques renforcés de fibres de carbone — Détermination des
dimensions et du rapport d’apparence d’objets broyés
Reference number
ISO 30012:2016(E)
©
ISO 2016
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ISO 30012:2016(E)
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© ISO 2016, Published in Switzerland
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ii © ISO 2016 – All rights reserved
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ISO 30012:2016(E)
Contents Page
Foreword .iv
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Symbols .1
5 Principle .2
6 Apparatus .2
7 Sampling .2
8 Measurement .3
8.1 General . 3
8.2 Method A: Manual method (stereomicroscope) . 3
8.3 Method B: Projection microscope . 3
8.4 Method C: Automatic shape and size measurement apparatus . 4
9 Calculation and expression of results .5
10 Precision . 6
11 Test report .7
© ISO 2016 – All rights reserved iii
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ISO 30012:2016(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
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assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 13, Composites
and reinforcement fibres.
iv © ISO 2016 – All rights reserved
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INTERNATIONAL STANDARD ISO 30012:2016(E)
Carbon-fibre-reinforced plastics — Determination of the
size and aspect ratio of crushed objects
1 Scope
This International Standard specifies test methods for measurement of the size and aspect ratio of
crushed carbon-fibre-reinforced plastics (CFRP), especially for recycling purpose. In this International
Standard the shape of crushed CFRP, the fragment, is treated as a rectangular shape, and the
measurement of the long and short sides of the shape is described. It applies to fragments of the
following average dimensions:
— length of the long side: 5 mm to 50 mm;
— width of the short side: 1 mm to 10 mm.
This International Standard provides three measuring methods, two methods are manual methods
using microscope and scale and the third method is an automatic method using a measuring apparatus.
Crushed CFRP obtained from thermosetting or thermoplastic resin matrices are covered by this
International Standard.
NOTE If the crushed CFRP contain a lot of small fragments and fine particle, it is intended to screen out by a
sieve of 1 mm size before the measurement.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 472, Plastics — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 472 apply.
4 Symbols
W width of a CFRP fragment represented by the short side of a rectangular shape
L length of a CFRP fragment represented by the long side of a rectangular shape
average width of CFRP fragments
W
average length of CFRP fragments
L
R aspect ratio of CFRP fragments, calculated as the ratio of the length to the width of CFRP
A
fragment
standard deviation of length of CFRP fragments
σ()L
© ISO 2016 – All rights reserved 1
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ISO 30012:2016(E)
standard deviation of width of CFRP fragments
σ()W
5 Principle
The fragments obtained from crushing CFRP laminates are impartially sampled and measured.
Most fragments of CFRP have a shape that can be approximate to a rectangle. Each fragment is
observed with an optical microscope or equivalent equipment and the width and length of the
rectangle are measured.
At least 100 fragments are measured. The
...
DRAFT INTERNATIONAL STANDARD ISO/DIS 30012
ISO/TC 61/SC 13 Secretariat: JISC
Voting begins on: Voting terminates on:
2010-08-10 2011-01-10
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Carbon-fibre-reinforced plastics — Determination of the size and
aspect ratio of crushed objects
Plastiques renforcés de fibres de carbone — Détermination des dimensions et du rapport de côtés des objets
écrasés
ICS 59.100.20
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©
International Organization for Standardization, 2010
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ISO/DIS 30012
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ii ISO 2010 – All rights reserved
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ISO/DIS 30012
Contents Page
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Symbols and abbreviated terms . 1
4 Principle . 2
5 Apparatus . 2
6 Sampling . 2
7 Measurement . 3
7.1 General . 3
7.2 Method A: Manual method (Stereomicroscope) . 3
7.3 Method B: Projection microscope . 3
7.4 Method C: Automatic shape and size measurement apparatus . 3
8 Calculation and expression of results . 5
9 Precision . 6
10 Test Report . 6
© ISO 2010 – All rights reserved iii
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ISO/DIS 30012
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 30012 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites
and reinforcement fibres.
iv © ISO 2010 – All rights reserved
---------------------- Page: 4 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/DIS 30012
Carbon-fibre-reinforced plastics — Determination of the size
and aspect ratio of crushed objects
1 Scope
This standard specifies the test method for measurement of the size and aspect ratio of crushed carbon- fibre-
reinforced plastic (CFRP), especially for recycling purpose. In this standard the shape of crushed CFRP, the
fragment, is treated as a rectangular shape, and the measurement of the long and short side of the shape is
described. Preferable average dimensions of the fragments are;
Length of the long side: 5 mm - 50 mm
Width of the short side: 1 mm - 10 mm
This standard provides three measuring methods, two methods are manual methods using microscope and
scale and the third is an automatic method using a measuring apparatus.
Crushed CFRP’s obtained from thermosetting or thermoplastic resin matrices are covered by this standard.
NOTE If the crushed CFRP contain a lot of small fragments and fine particle, it is recommended to screen out by a
sieve of 1 mm size before the measurement.
2 Normative references
The following referenced documents are indispensable for the application of this document. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO291, Plastics — Standards atmospheres for conditioning and testing
3 Symbols and abbreviated terms
CFRP is an abbreviated te
...
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