PN BN 8543-02-1967
chalk

Standard No.

PN BN 8543-02-1967

Release Date

1967

Published By

PL-PKN

Latest

PN BN 8543-02-1967

Scope

The subject of the standard is blackboard chalk used for writing and drawing on school boards. Requirements of the standard do not have? applications to natural chalk.

PN BN 8543-02-1967 history

• 1967 PN BN 8543-02-1967 chalk

PN BN 8543-02-1967 -All Parts