Cellular plastics and rubbers - Determination of linear dimensions
This standard is identical to the international standard ISO 1923-1981 Cellular plastics and rubbers - Determination of linear dimensions.
1 Subject content and applicable scope
This standard specifies the characteristics and the choice of the measuring equipment and procedure for determination of the linear dimensions of sheets, blocks or test specimens of cellular material (flexible and rigid).
This standard is applicable to the determination of linear dimensions of cellular plastics and rubbers.
2 Definitions
linear dimension: the shortest distance between two specific points, between two parallel lines or between two parallel planes, defined by corners, edges or surfaces of the cellular specimen
3 Measuring equipment
3.1 Dial gauge with a measuring surface of about 10cm2. The gauging pressure shall be 100±10Pa, and the reading accuracy shall be 0.05mm, as shown in Annex A.
3.2 Micrometer, having a measuring surface with a minimum diameter of 5mm, but in any case not less than 5 times the average diameter of the cells, permitting reading with an accuracy of 0.05mm.
1 Subject content and applicable scope
2 Definitions
3 Measuring equipment
4 Procedure
5 Test report
Annex A Dial gauge (Informative)
