QB/T 1989-1994
Tolerances for chronograph instruments and tolerances for mating plastic parts (English Version)

Standard No.

QB/T 1989-1994

Language

Chinese, Available in English version

Release Date

1994

Published By

Professional Standard - Light Industry

Status

Withdraw 2010-02

Latest

QB/T 1989-1994

Scope

This standard specifies the tolerances of plastic parts for timing instruments. This standard applies to smooth cylindrical mating and non-mating sizes of plastic parts with basic dimensions up to 500mm.

QB/T 1989-1994 history

• 1994 QB/T 1989-1994 Tolerances for chronograph instruments and tolerances for mating plastic parts