ISO general purpose metric screw threads - Part 20: Limits of sizes for coarse pitch threads with the prefered tolerance classes; nominal sizes from 1 mm to 68 mm

Publication date: 2000-08

Slide projectors and slides - Part 20: Valuation of slide projectors, range of valuation

Publication date: 1996-02

Tabular layouts of article characteristics for opto-electronic semiconductor devices

Publication date: 1988-12

Electronic Business - Part 20: Data interface for transboundary movements of waste; Consignment note (Proposal for an European Standard)

Publication date: 2007-02

Test patterns for micrography; test exposures made to establish the conditions for microfilming of drawings

Publication date: 1991-03

Graphical symbols for use in the engineering and related fields - Part 20: Plastics and rubber machinery

Publication date: 2003-05

Graphical symbols for information; plastic machinery

Publication date: 1981-04

German standard methods for the examination of water, waste water and sludge; general information (group A); sampling of tidal waters (A 20)

Publication date: 1987-08

German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of substances that react with disulfine blue (H 20)

Publication date: 1989-07

German standard methods for the examination of water, waste water and sludge - Sludge and sediments (group S) - Part 20: Determination of 6 polychlorinated biphenyls (PCB) (S 20)

Publication date: 1996-01