Chemicals used for treatment of water intended for human consumption. Antiscalants for membranes. Polycarboxilic acids and salts Ingestion-build-205840 ISO 21746 provides guidance on

ISO 21746 provides guidance on the apparatus

Device functions

found in EN 50173 and other distinguishing performance characteristics

This Technical Report describes the method of three-transducer calibration for calibrating frequency responses of absolute sensitivity by means of a reciprocity technique using three reversible acoustic emission transducers of the same kind

Steel tubular shafts shall comply with BS 6323-1

Chemicals used for treatment of water intended for human consumption. Antiscalants for membranes. Polycarboxilic acids and salts Ingestion-build-205840 ISO 21746 provides guidance on1 Scope This European Standard is applicable to polycarboxylic acids and salts used as antiscalants for membranes for the treatment of water intended for human consumption. It describes the characteristics and specifies the requirements and the corresponding analytical methods for polycarboxylic acids and salts. It gives information on their use as antiscalants for membranes in water treatment.