Reference number
ISO 3340:1976
ISO 3340:1976
© ISO 2025
International Standard
ISO 3340:1976
Fibre building boards — Determination of sand content
Edition 1
1976-04
1976-04
ISO 3340:1976
8621
Published
(Edition 1, 1976)
This publication was last reviewed and confirmed in 2020.
Therefore this version remains current.
Abstract
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.
