Microbiology of food and animal feeding stuffs. Determination of water activity1 Scope This International Standard gives basic principles and requirements for physical methods of determining the water activity of products intended for human consumption and the feeding of animals. Water activity can be used to predict microbial growth and determine the microbiological stability of a food product, and it also provides an important, quantitatively determinable criterion for estimating the times for which a foodstuff can be kept.

Note: ISO 1763 is applicable to textile floor coverings with the pile of which consists of tufts and/or loops

The system described in this International Standard can also apply to other NDT methods

The maximum permissible water content in breathing oxygen

the user from underestimating his alcohol concentration based on measurement uncertainties

BS EN 4474 has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN)

Why should you use PD IEC/TS 62564-1 - Aerospace qualified electronic components (AQEC)

BS EN 13254:2016 has been editorially revised

that fibres with vanishing dispersion are not well suited for long-haul communication systems employing dense wavelength-division multiplexing (DWDM) because of signal distortions due to nonlinear optical interactions between the various multiplexed signals

Requirements are also specified for gully cover slabs

Keep the escape and access routes free from smoke

which will be withdrawn on 5 May 2019 and implements IEC amendment 1:2016 with CENELEC endorsement A1:2016

changes in other physical properties