Products used for treatment of water intended for human consumption. Pumice Ingestion-build-107062 Annex C - Frederiksborg Linnedservice

Annex C - Frederiksborg Linnedservice A/S

There are three products:

2 Release tests — Setting

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

These blocks are covered by EN 15037-4

Products used for treatment of water intended for human consumption. Pumice Ingestion-build-107062 Annex C - Frederiksborg Linnedservice1 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.