/ RDLs
/ ISO 15926 Part 4: Core reference data - Edition 4
/ GAS DETECTING MEASURING ELEMENT - ULTRASONIC
GAS DETECTING MEASURING ELEMENT - ULTRASONIC
Definition
A <GAS DETECTING MEASURING ELEMENT - ULTRASONIC> is an <INSTRUMENTATION ITEM> and a <GAS DETECTING MEASURING ELEMENT> using acoustic sensors to detect changes in the background noise of its environment