Water quality. Radium-226 - Test method using coprecipitation and gamma-spectrometry1 Scope This part of ISO 13165 specifies the determination of radium 226 (226Ra) activity concentration in all types of water by coprecipitation followed by gamma spectrometry (see ISO 185893). The method described is suitable for determination of soluble 226Ra activity concentrations greater than 0,02 Bq l1 using a sample volume of 1 l to 100 l of any water type. For water samples smaller than a volume of 1 l, direct gamma spectrometry can be

BS EN 3660-063 covers terms and definitions

and maintenance of the network

NOTE 3 In the context of this Part

BS EN 55032 includes by reference the relevant basic requirements given in the CISPR 16 series and other standards shown in the normative references in BS EN 55032

BS EN 4377 on Aerospace series: Heat resisting alloy NiCr19Fe19Nb5Mo3 (2

ISO 6892:1998

fittings and other components conforming to any of the plastics product’s standards listed in Clause 2

NOTE: The assessment of social and economic performances at the product level is not covered by this standard

The requirement for sources of electrical power has been rewritten

Apparatus and methods of widespread application are set out in ISO 9555-1 and BS 3680-2D don’t repeat them

Note 2: BS EN 61439-5 does not apply to specific types of ASSEMBLIES covered by other parts of IEC 61439 series

Conduction of the security assessment