Water quality. Interlaboratory comparisons for proficiency testing of analytical chemistry laboratories Ingestion-build-103253 ― The wider policy context

― The wider policy context that city centres must address in addition to tackling congestion

Correction of the language used to describe requirements for interpretation of results during a verification dose experiment in the second paragraph in 7

The standard specifies criteria for measurements which can be used if required to measure compliance by inspection

uses of different filters and correction for absorption effects

They can withstand exposure to changing temperatures and dampness

Water quality. Interlaboratory comparisons for proficiency testing of analytical chemistry laboratories Ingestion-build-103253 ― The wider policy context