Construction products: Assessment of release of dangerous substances. Guidance on the statistical assessment of declared values. Technical and statistical background
Edition 2015-09-30

Optical amplifier technical reports. Theoretical background for noise figure evaluation using the electrical spectrum analyzer
Edition 2003-03-10

Transmission properties of cascaded two-ports or quadripols. Background of terms and definitions
Edition 2010-02-28

Reaction to fire tests - Full scale room tests for surface products - Technical background and guidance
Edition 2001-07-15

DETERMINATION OF THE HEIGHT OF CUT LOOPS ON THE BACK-GROUND WORK IN THE BANK KNOTTED CARPETS.
Edition 1974-05-15

Automotive fuels - Ethanol (E85) automotive fuel - Background to the parameters required and their respective limits and determination (Endorsed by Asociación Española de Normalización in May of 2018.)
Edition 2018-05-01

Automotive fuels - Paraffinic diesel fuel and blends with FAME - Background to the parameters required and their respective limits and determination (Endorsed by Asociación Española de Normalización in January of 2024.)
Edition 2024-01-01

Further guidance on the application of EN 13791:2019 and background to the provisions
Edition 2021-11-03

Railway Applications - Wheel-rail contact geometry parameters - Technical report and background information about EN 15302 (Endorsed by Asociación Española de Normalización in April of 2022.)
Edition 2022-04-01

Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration method for waters with low bacterial background flora (ISO 9308-1:2014)
Edition 2014-12-30