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AS
AS/NZS 4257.8:1994

AS/NZS 4257.8:1994

Current

Current

The latest, up-to-date edition.

Plastic roof and wall cladding materials - Methods of test Determination of residual styrene (Reconfirmed 2020)

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

05-12-1994

Publisher

Standards Australia

1 - AS/NZS 4257.8:1994 PLASTIC ROOF AND WALL CLADDING MATERIALS - METHODS OF TEST - DETERMINATION OF RESIDUAL STYRENE
1 - PREFACE
1 - CONTENTS
2 - METHOD
2 - 1 Scope and field of application
2 - 2 References
2 - 3 Determination by gas chromatography
2 - 3.1 Principle
2 - 3.2 Reagents
2 - 3.3 Apparatus
2 - 3.4 Preparation of sample
3 - 3.5 Procedure
4 - 3.6 Expression of results
4 - 4 Determination with Wijs’ solution
4 - 4.1 Principle
5 - 4.2 Reagents
5 - 4.3 Apparatus
5 - 4.4 Preparation of sample
5 - 4.5 Procedure
6 - 4.6 Expression of results
6 - 5 Test report

This Standard is identical with and reproduced from ISO 4901:1985.

This International Standard specifies a method of determining the residual styrene monomer content inreinforced plastics based on unsaturated polyester resins in the polymerized state (hereinafter called UP resins in the polymerized state ), by gas chromatography. The residual styrene monomer content is an important criterion in evaluating the degree of cure of UP resins in the polymerized state. This method is not applicable to UP resins of high chemical resistance.NOTE - If other volatile aromatic hydrocarbon monomers are present in significant quantities, see ISO 2561 for the procedure to be followed in their determination.This International Standard also specifies a method of determining residual styrene monomer by the Wijsmethod for laboratories in which gas chromatography is not available.

Committee
PL-022
DocumentType
Standard
ISBN
0 7262 9308 3
Pages
5
ProductNote
Reconfirmed 28/08/2020.
This standard has been reconfirmed in Australia in 2020 and remains current in New Zealand. Reconfirmation Notice 28/08/2020
PublisherName
Standards Australia
Status
Current
Supersedes

Standards Relationship
ISO 4901:1985 Identical

First published as Joint Standard AS/NZS 4257.8:1994.
Reconfirmed 2020. First published as Joint Standard AS/NZS 4257.8:1994.

AS/NZS 4256.3:1994 Plastic roof and wall cladding materials Glass fibre reinforced polyester (GRP)
AS 4256.3-2006 Plastic roof and wall cladding materials Glass fibre reinforced polyester (GRP) (Reconfirmed 2018)

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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