BS 6221-4:1982

Отменен

Printed wiring boards, Method for specifying single and double sided printed wiring boards with plain holes — 16 стр.

На этот документ ссылаются

BS EN 123100:1992

Действует

Harmonized system of quality assessment for electronic components: Sectional specification: Single and double sided printed boards with plain holes — 26 стр.