Water quality - Enumeration of Escherichia coli and coliform bacteria Part 1: Membrane filtration method for waters with low bacterial background flora
Edition 2021-08-30

Hydraulic fluid power. Background, impact and use of ISO 11171:2020 on particle count and filter test data
Edition 2021-02-12

Background paper to the National Annexes to BS EN 1992-1, BS EN 1992-3 and BS EN 1992-4
Edition 2020-11-25

Background paper to the UK National Annex to BS EN 1991-1-2
Edition 2007-04-30

Background information to the National Annex to BS EN 1991-1-4 and additional guidance
Edition 2015-12-31

Background to the National Annex to BS EN 1991-2. Traffic loads on bridges
Edition 2011-03-31

Background paper to BS EN 1994-2 and the UK National Annex to BS EN 1994-2
Edition 2007-12-31

Gas cylinders - Refillable seamless steel - Performance tests - Philosophy, background and conclusions
Edition 2002-01-17

Background information and guidance on environmental cyanide analysis
Edition 2017-09-18

Petroleum products. Equivalency of test method determining the same property. Background and principle of the comparison and the evaluation of equivalency
Edition 2016-12-31