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BS ISO 15038:1999

BS ISO 15038:1999

Current

Current

The latest, up-to-date edition.

Plastics. Organic-perester crosslinking agents for unsaturated-polyester thermosetting materials. Determination of active-oxygen content

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-15-1999

Publisher

British Standards Institution

Defines a procedure of determining the total active-oxygen content of organic peresters. Applicable to those peresters used to initiate crosslinking of unsaturated-polyester thermosets.

This International Standard specifies a method of determining the total active-oxygen content of organic peresters. It applies to those peresters used to initiate crosslinking of unsaturated-polyester thermosets. The peresters most widely used in the crosslinking of unsaturated-polyester resins are given in Table1. Table1 Main types of organic perester Perester Molecular mass tert-Butyl perbenzoate 194,2 tert-Butyl 2-ethylperhexanoate 216,3 iso-Propyl tert-butylperoxy carbonate 176,2 tert-Amyl 2-ethylperhexanoate 230,3 tert-Amyl perbenzoate 208,3 tert-Butyl 3,5,5-trimethylperhexanoate 230,4 Butyl peresters may contain traces of tert-butyl hydroperoxide (TBHP), the active oxygen in which can be determined separately from that in the perester itself (see annexA). The active-oxygen content of the perester alone can then be obtained by subtraction.

Committee
PRI/42
DevelopmentNote
Supersedes 96/125464 DC. (07/2005)
DocumentType
Standard
Pages
12
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 15038:1999 Identical

ISO 648:2008 Laboratory glassware — Single-volume pipettes
ISO 385-1:1984 Laboratory glassware — Burettes — Part 1: General requirements
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods

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Hardcopy - English
PDF - English
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