ISO 9177-3:1994

Действует

Mechanical pencils - Part 3: Black leads - Bending strengths of HB leads — 6 стр.

На этот документ ссылаются

17/30321961 DC

Действует

BS ISO 20318-1. Mechanical pencils and leads for general use. Classification, dimensions, quality and test methods.Part 1. Mechanical pencils. Part 1: Mechanical pencils — 17 стр.

17/30321964 DC

Действует

BS ISO 20318-2. Mechanical pencils and leads for general use. Classification, dimensions, quality and test methods. Part 2. Black leads — 18 стр.

BS EN ISO 15138:2007

Заменен

Petroleum and natural gas industries. Offshore production installations. Heating, ventilation and air-conditioning — 120 стр.