19/30391462 DC - BS ISO 23706. Plastics. Determination of apparent activation energies of property changes in standard weathering test methods

19/30391462 DC

BS ISO 23706. Plastics. Determination of apparent activation energies of property changes in standard weathering test methods

Status : Current, Draft for public comment   Published : October 2019

Format
PDF

Format
HARDCOPY



This document describes a test method to determine the activation energy (Ea) of photochemical degradation reactions in accelerated weathering tests according to the Arrhenius model in the most comprehensive manner.

The determination of activation energies of photo-chemical degradation processes allows including the temperature into the evaluation and correlation of different weathering experiments as quantitative factor. Knowing the activation energy will improve the reliability and predictive value of artificial weathering.

NOTE

The use of the Arrhenius concept in artificial weathering simplifies complex chemical degradation processes and is therefore in this context a limited model to estimate the temperature dependency in weathering. However, bye following some basic experimental preconditions, the relevance of the estimates can be increased.




Standard Number19/30391462 DC
TitleBS ISO 23706. Plastics. Determination of apparent activation energies of property changes in standard weathering test methods
StatusCurrent, Draft for public comment
Publication Date28 October 2019
Normative References(Required to achieve compliance to this standard)ISO/TR 17801, ISO 11358-2, ISO 4892-1, ISO 10640, ISO 4582, ISO 2578, EN 16795, ISO 4892-3, ISO 4892-2
Informative References(Provided for Information)ISO 9370
International RelationshipsISO/DIS 23706
Draft Expiry Date21 December 2019
DescriptorsTemperature, Weathering tests, Weathering, Test methods, Plastics
ICS83.080.01
Title in FrenchTitre manque
CommitteePRI/21
PublisherBSI
FormatA4
DeliveryYes
Pages25
File Size460 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


BSOL

The faster, easier way to work with standards


Worldwide Standards
We can source any standard from anywhere in the world


Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version