Ophthalmic instruments. Trial case lenses Ingestion-build-224916 the test object

the test object

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It is not possible to predict long-term changes of airborne asbestos fibre concentrations resulting from any deterioration of asbestos-containing material or the type of usage of the rooms

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BS EN ISO 14021 describes selected terms commonly used in environmental claims and gives qualifications for their use

Ophthalmic instruments. Trial case lenses Ingestion-build-224916 the test object1 Scope This International Standard specifies requirements for mounted ophthalmic full and or reduced aperture trial case lenses for the determination of the refractive error of the eye. This International Standard takes priority over ISO 15004 1, if differences exist.