Products used for treatment of water intended for human consumption. Pumice Ingestion-build-107062 It specifies mechanical dimensions and

It specifies mechanical dimensions and certain electroacoustical characteristics for working standard microphones used in measuring systems for the determination of sound pressure to enable these microphones to be used as transfer standards in the calibration of acoustic measurement instruments

the graphite materials in pencils and liquid ink in pens)

These blocks are covered by EN 15037-4

printed or coated textile products by chromatographic analysis of their extracts

BS 3878 also provides recommended scheme for the selection of test pieces

Products used for treatment of water intended for human consumption. Pumice Ingestion-build-107062 It specifies mechanical dimensions and1 Scope This European Standard is applicable to pumice used for treatment of water intended for human consumption. It describes the characteristics of pumice and specifies the requirements and the corresponding test methods for pumice. It gives information on its use in water treatment.