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STANDARD 81304
First edition .
1992-I 2-01
Coating powders -
Part 4:
.
Calculat I on of lower explosion limit
. ’
Pouch-es pour rev&ement 7
Partie 4: Cal& de la limite infbrieure d’explosibilit6
Reference number
IS0 8130-4:1992(E)
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IS0 8130-4:1992(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 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 Oh of the member
bodies casting a vote.
International Standard IS0 8130-4 was prepared by Technical Committee
lSO/TC 35, Paints and varnishes, Sub-Committee SC 9, General test
methods for paints and varnishes.
IS0 8130 consists of the following parts, under the general title Coating
powders:
- Part I: Determination of particle size distribution by sieving
- Part 2: Determination of density by gas comparison pyknometer
(referee method)
- Part 3: Determination of density by liquid displacement
pyknometer
- Part 4: Cal&a tion of lower explosion limit
- Part 5: Determination of flow properties of a powder/air mixture
Part 6: Determination of gel time of thermosetting coating powders
-
at a given temperature
- Part 7: Determination of loss of mass on stoving
- Part 8: Assessment of the storage stability of thermosetting pow-
ders
0 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 Genltve 20 l Switzerland
Printed in Switzerland
ii
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IS0 8130=4:1992(E)
- Part 9s Sampling
Annex A of this part of IS0 8130 is for information only.
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INTERNATIONAL STANDARD IS0 8130=4:1992(E)
Coating powders -
Part 4:
Calculation of lower explosion limit
1 Scope 2 Normative references
The following standards contain provisions which,
This part of IS0 8130 specifies a method for the cal-
through reference in this text, constitute provisions
culation of the lower explosion limit of a coating
of this part of IS0 8130. At the time of publication,
powder, i.e. the minimum concentration of the coat-
ing powder in air which will form an explosive mix- the editions indicated were valid. All standards are
ture. It is based on the knowledge of the gross subject to revision, and parties to agreements based
calorific value of the product, as determined by the on this part of IS0 8130 are encouraged to investi-
gate the possibility of applying the most recent edi-
method described in IS0 1928, or on the gross
calorific values of the constituents of the product. tions of the standards indicated below. Members of
IEC and IS0 maintain registers of currently valid
Reliable methods for the measurement of this
International Standards.
quantity require the use of special apparatus which
may not be readily available, A m
...