NEN EN 922 : 1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PLASTICS PIPING AND DUCTING SYSTEMS - PIPES AND FITTINGS OF UNPLASTICIZED POLY(VINYL CHLORIDE) (PVC-U) - SPECIMEN PREPARATION FOR DETERMINATION OF THE VISCOSITY NUMBER AND CALCULATION OF THE K-VALUE
15-09-2011
12-01-2013
Committees responsible
National foreword
Method
Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents for isolation of the PVC resin
5 Apparatus for isolation of the PVC resin
6 Procedure
7 Calculation of K-value
8 Precision
9 Test report
Annex
A (informative) K-values for PVC resin and their
relationship with viscosity number
Table
A.1 Viscosity numbers and corresponding K-values
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