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  • BSI
    BS ISO 974:2000 Plastics. Determination of the brittleness temperature by impact
    Edition: 2000
    $2,380.87
    / 1 loc 1-31 users up to 10 books

Description of BS ISO 974:2000 2000

This International Standard specifies a method for the determination of the temperature at which plastics that are not rigid at normal ambient temperature exhibit brittle failure under specified impact conditions. A supplementary technique using notched specimens develops brittleness values at a much higher temperature than are observed for unnotched specimens of the same plastic material. The method utilizes a statistical technique to quantify the brittleness failure temperature. Provisions are made for the testing of sufficient specimens to permit the calculation of the brittleness temperature on a statistical basis. Statistical techniques have been developed to quantify the brittleness temperature as is defined in 3.1.

The method establishes the temperature at which there is a 50 % chance of failure in either unnotched or notched specimens. This method has been found useful for specification purposes, although it does not necessarily measure the lowest temperature at which the material may be used. In the measurement of the brittleness temperature, the precision of the measurement should preferably be ± 5 °C at the worst when establishing values used in material specifications.



Standard NumberBS ISO 974:2000
TitlePlastics. Determination of the brittleness temperature by impact
StatusUnder Review
Publication Date2000-05-15
Identical National Standard OfISO 974:2000
DescriptorsTolerances (measurement), Mechanical properties of materials, Plastics, Brittleness, Test equipment, Failure (mechanical), Specimen preparation, Temperature, Statistical testing, Ambient temperature, Plastics and rubber technology, Dimensions, Impact testing
ICS83.080.01 Plastics in general
CommitteePRI/21
ISBN0 580 34260 3
PublisherBSI
Pages16



About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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