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and blower vacuums
This document does not include specific methods for humancentred design
two‑way speech communication
A screening method (method A) is described to exclude those samples containing less than 20 % of the limit values given in References [1]
BS EN 12354-6 describes the principles of the calculation model for sound absorption in enclosed spaces
Liquid crystal display devices - Measuring methods for liquid crystal display modules. Reflective type Ingestion-build-89079 and blower vacuums1 Scope This part of IEC 61747 gives details of the quality assessment procedures, the inspection requirements, screening sequences, sampling requirements, and test and measurement procedures required for the assessment of liquid crystal display modules. This standard is restricted to reflective liquid crystal display modules using either segment, passive or active matrix and a chromatic or colour type LCDs (see Note). Furthermore, the reflective
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