Analysis of steels and irons. Internal laboratory procedure for checking the accuracy of an analytical method by using Certified Reference Materials PAS 15 ISO 23500-1 is the base

ISO 23500-1 is the base standard for several other standards dealing with water treatment equipment

Operational pH standards are those assigned pH values at various temperatures based on the operational cell measurements specified in BS 1647-2

PD CEN/TR 15897 discusses submerged Membrane Bioreactor (MBR) technology

This Part 1-3 of the International Standard relates

Water treatment

Analysis of steels and irons. Internal laboratory procedure for checking the accuracy of an analytical method by using Certified Reference Materials PAS 15 ISO 23500-1 is the base1 Scope The present statistical procedure describes how to check results for absence of bias by comparison of these analytical results with those obtained during the certification of CRMs. If the resulting data confirm the absence of bias, the method may be considered accurate when applied to all steels and irons whose composition ranges are adequately covered or bounded by the CRMs used. The resulting data give also an estimate of the repeatability