ISO 4440:1980

International Standard @ 4440
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INTERNATIONAL ORGANIZATION FOR STANDARDIZATION*MEXflYHAPOfiHAR OPrAHMBAUMR no CTAHflAPTM3AUMM*ORGANlSATlON INTERNATIONALE DE NORMALISATION
Polyethylene (PE) pipes and fittings - Determination of
melt flow rate
Tubes et raccords en polyéthylène (PE) - Détermination de l'indice de fluidité à chaud
First edition - 1980-08-01
- UDC 621.643.29 : 678.742.2 : 536.421.2 Ref. No. IS0 4440-1980 (E)
Descriptors : pipes (tubes), pipe fittings, plastic tubes, polyethylene, melting.
8 -
U
E Price based on 2 pages
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards institutes (IS0 member bodies). The work of developing Inter-
national Standards is carried out through IS0 technical committees. Every member
body interested in a subject for which a technical committee has been set up 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council.
International Standard IS0 4440 was developed by Technical Committee ISO/TC 138,
Plastics pipes, fittings and valves for the transport of fluids, and was circulated to the
member bodies in January 1978.
It has been approved by the member bodies of the following countries :
Australia France Norway
Germany, F.R. Poland
Austria
Belgium Greece Romania
South Africa, Rep. of
Brazil Ireland
Bulgaria Israel Spain
Sweden
Canada Italy
Czechoslovakia Japan Turkey
United Kingdom
Denmark Mexico
Egypt, Arab Rep. of Netherlands USSR
Finland New Zealand Yugoslavia
The member body of the following country expressed disapproval of the document on
:
technical grounds
USA
O International Organization for Standardization, 1980 O
Printed in Switzerland
INTERNATIONAL STANDARD IS0 4440-1980 (E)
Polyethylene (PE) pipes and fittings - Determination of
melt flow rate
O Introduction
5.3 Procedure
The melt flow rate is only to be used to designate polyethylenes Use the procedure as described in IS0 1133. with a die having a
intended for use in the manufacture of pipes and fittings, it is k-factor of 464, condition 4, (die diameter 2,090 to
not proposed to specify the values for this property. 2,100 mm - temperature 190 OC - reference time 600 s -
load 2,160 kg).
* 1 Scope NOTE - For
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