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CEN
EN ISO 4577:1999

EN ISO 4577:1999

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by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 - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method (ISO 4577:1983)

Superseded date

14-09-2019

Superseded by

EN ISO 4577:2019

Published date

23-06-1999

Publisher

Comite Europeen de Normalisation

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Foreword
1 Scope and field of application
2 References
3 Principle
4 Apparatus
5 Test specimens
6 Conditioning
7 Test conditions
8 Procedures
9 Expression of results
10 Test report
Annex ZA (normative) Normative references to international
                     publications with their relevant
                     European publications

Specifies a method for the determination of the resistance of moulded test specimens of propylene and propylene-copolymers to acclerated ageing at specified temperatures in the range from 100 to 150oC in a forced draught oven. Rotating specimen holders are recommended.- The time to failure is determined by visual examination and taken as the number of days after which a specimen shows localized crazing, crumbling and/or discoloration. The test may be conducted at several temperatures and the data interpreted by the use of the Arrhenius relation.

Committee
CEN/TC 249
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

ISO 1191:1975 Plastics Polyethylenes and polypropylenes in dilute solution Determination of viscosity number and of limiting viscosity number
ISO 1873-2:2007 Plastics Polypropylene (PP) moulding and extrusion materials Part 2: Preparation of test specimens and determination of properties
ISO 1873-1:1995 Plastics Polypropylene (PP) moulding and extrusion materials Part 1: Designation system and basis for specifications
ISO 291:2008 Plastics Standard atmospheres for conditioning and testing
ISO 1133:2005 Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics

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