Graphic technology and photography. Certified reference materials for reflection and transmission metrology. Documentation and procedures for use, including determination of combined standard uncertainty Ingestion-build-82061 Who is BS EN 12385-9

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This European Standard relates to piezoelectric transducer ceramics for application both as transmitters and receivers in electroacoustics and ultrasonics over a wide frequency range

PD 5304 provides guidance on:

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Graphic technology and photography. Certified reference materials for reflection and transmission metrology. Documentation and procedures for use, including determination of combined standard uncertainty Ingestion-build-82061 Who is BS EN 12385-91 Scope This International Standard specifies the documentation requirements for certified reference materials (CRMs), procedures for the use of CRMs, and procedures for the computation and reporting of the combined standard uncertainty of reflectance and transmittance measurement systems used in graphic arts, photographic and other imaging industries.