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EN ISO 1157 : 1999

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

PLASTICS - CELLULOSE ACETATE IN DILUTE SOLUTION - DETERMINATION OF VISCOSITY NUMBER AND VISCOSITY RATIO

Withdrawn date

02-07-2004

Published date

12-01-2013

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Foreword
1 Scope
2 Normative reference
3 Definitions
4 Principle
5 Solvents
6 Apparatus
7 Procedure
8 Expression of results
9 Precision
10 Test report
Annex ZA (normative) Normative references to international
         publications with their relevant European publications

Defines a procedure which determines viscosity number and ratio of cellulose acetate in dilute solution in a dichloromethane and methanol mixture. Covers cellulose acetate with an acetic yield of not less than 50%.

Committee
TC 249
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn

ISO 1628-1:2009 Plastics Determination of the viscosity of polymers in dilute solution using capillary viscometers Part 1: General principles

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