Intruder alarm systems. Specifications for components - Ultrasonic movement detectors Ingestion-build-109673 The preparation of QCMs should

The preparation of QCMs should involve homogeneity and stability assessments

symmetric or asymmetric) although certain classes of Non-repudiation mechanisms may depend on particular algorithm properties

— the requirements of Directive 94/9/CE concerning equipment and protective systems intended for use in potentially explosive atmospheres

the manufacturers' product information and the manufacturers' maintenance and service instructions will be complied with in a manner that can be proven

BS EN IEC 62660‑1:2019 edition constitutes a technical revision which are as following-

Intruder alarm systems. Specifications for components - Ultrasonic movement detectors Ingestion-build-109673 The preparation of QCMs should