SVENSK STANDARD SS-ISO 17710
Fastställd 2003-10-31 Utgåva 1
ICS 83.080.10 Språk: engelska Publicerad: december 2003
© Copyright SIS. Reproduction in any form without permission is prohibited.
Plast – Polyoler för användning i produktionen av polyuretan – Bestämning av omättnads- graden med mikrotitrering
Plastics – Polyols for use in the production of
polyurethane – Determination of degree of
unsaturation by microtitration
Dokumentet består av 11 sidor.
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Den internationella standarden ISO 17710:2002 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av ISO 17710:2002.
The International Standard ISO 17710:2002 has the status of a Swedish Standard. This document contains the official English version of ISO 17710:2002.
ISO 17710:2002(E)
© ISO 2002 – All rights reserved iii
Contents
Page1 Scope ... 1
2 Normative references ... 1
3 Terms and definitions ... 1
4 Principle ... 2
5 Application ... 2
6 Interferences ... 2
7 Reagents ... 2
8 Apparatus ... 3
9 Sampling ... 3
10 Procedure ... 3
11 Expression of results ... 4
12 Precision and bias ... 4
13 Test report ... 5
Bibliography... 6
iv © ISO 2002 – All rights reserved
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 3.
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 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 17710 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 12, Thermosetting materials.
ISO 17710:2002(E)
© ISO 2002 – All rights reserved v
Introduction
Standards have been published which deal with the measurement of the degree of unsaturation in polyols used for the production of polyurethane plastics (ASTM D 4671, JIS K 1557, part 6.7). These standards are based on the reaction of mercuric acetate with the unsaturation present in the molecule. The method described in this International Standard relies on the same chemistry, but is a microtitration method which uses less reagent and therefore reduces the disposal problems associated with mercury compounds. It is based primarily on ASTM D 4671.
