ISO 15038:1999
Plastics - Organic-perester crosslinking agents for unsaturated-polyester thermosetting materials - Determination of active-oxygen content

Standard No.

ISO 15038:1999

Release Date

1999

Published By

International Organization for Standardization (ISO)

Latest

ISO 15038:1999

Scope

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 Table 1. Butyl peresters may contain traces of terf-butyl hydroperoxide (TBHP), the active oxygen in which can be determined separately from that in the perester itself (see annex A). The active-oxygen content of the perester alone can then be obtained by subtraction.

ISO 15038:1999 Referenced Document

• ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
• ISO 385-1:1984 Laboratory glassware; Burettes; Part 1 : General requirements
• ISO 648:1977 Laboratory glassware; One-mark pipettes

ISO 15038:1999 history

• 1999 ISO 15038:1999 Plastics - Organic-perester crosslinking agents for unsaturated-polyester thermosetting materials - Determination of active-oxygen content