Flameproof protective clothing for the mining industry - Protective clothing for people of mine rescue and gas rescue crews - Part 3: Two-piece working suits
Edition 2014-10

Clothing for the mining industry - Two-piece work suits (Jacket and trousers)
Edition 2005-05

Chemical equipment - Process equipment and vessels with two domed ends - Definitions, nominal capacity, nominal diameters, main dimensions
Edition 2002-04

Tubular heat exchangers with two fixed heads - Part 1: Internal tube type 25, triangular tube pitch 32 - Number and pattern of tubes
Edition 2009-01

Tubular heat exchangers with two fixed heads - Part 2: Internal tube type 25, square tube pitch 32 - Number and pattern of tubes
Edition 2009-01

Tubular heat exchangers with two fixed heads - Part 5: Examples
Edition 2010-09

Mobile waste and recycling containers - Containers with two wheels with a capacity from 60 l to 360 l for diamond lifting devices
Edition 2019-04

Information technology - Office machines - Method of specifying colour reproduction with YES/NO criteria - Part 4: Test charts for output properties - Testing of equality for two equivalent colour definitions with 5 and 16 step colour series, only on CD-ROM
Edition 2010-12

German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 71: Equivalence of two analysis methods based on the comparison of analysis results (A 71)
Edition 2020-10

Quantities used in alternating current theory; two-line circuits
Edition 1994-03