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EN ISO 16014-5:2012

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Plastics - Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography - Part 5: Method using light-scattering detection (ISO 16014-5:2012)

Superseded date

22-06-2019

Superseded by

EN ISO 16014-5:2019

Published date

01-07-2012

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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Principle
6 Reagents
7 Apparatus
8 Procedure
9 Calibration
10 Data acquisition and processing
11 Expression of results
12 Precision
13 Test report
Annex A (informative) - Round-robin test
Annex B (informative) - Information on light scattering
Annex C (informative) - Calibration curve in low
        molecular mass range
Bibliography

The standard specifies a general method for determining the average molecular mass and molecular mass distribution of polymers from using SEC-LS, i.e. size-exclusion chromatography (SEC) coupled with light scattering detection (LS). The average molecular mass and the molecular mass distribution are calculated from data of molecular mass and mass concentration determined continuously at eacht elution time. The molecular mass at each elution time is determined absolutely by combining a light scattering detector with a concentration-sensitive detector. Therefore this method is classified as an absolute method (see Clause A.1 in Annes A).

Committee
CEN/TC 139
DevelopmentNote
Supersedes PREN ISO 16014-5. (07/2012)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 16014-4:2012 Plastics Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography Part 4: High-temperature method
ISO 472:2013 Plastics — Vocabulary
ISO 16014-2:2012 Plastics Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography Part 2: Universal calibration method
ISO 16014-3:2012 Plastics Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography Part 3: Low-temperature method
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 16014-1:2012 Plastics Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography Part 1: General principles

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