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Norm

ISO 3340:1976

Issue date: 1976 04 01

Fibre building boards — Determination of sand content

The purpose of the method specified is to obtain an indication of machinability by cutting tools. The principle is based on the complete combustion of test pieces and wei...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 3 Pages
Language:
English

The purpose of the method specified is to obtain an indication of machinability by cutting tools. The principle is based on the complete combustion of test pieces and weighing the sand remaining in the desiccator at the end of the procedure. The tubular hearth used to ignite the test pieces is shown in the figure.