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Ophthalmic instruments. Retinoscopes Ingestion-build-82396 9 Method of measurement of

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Description

9 Method of measurement of disturbance voltages

3 Performance requirements

Method by sieving and sedimentation

Testing and measuring safety barrier performance

piles and grouted anchors

Ophthalmic instruments. Retinoscopes Ingestion-build-82396 9 Method of measurement of1 Scope This International Standard, together with ISO 15004 1, specifies minimum requirements and test methods for hand held streak and spot retinoscopes for use in objective determination of the refractive errors of the eye. This International Standard takes precedence over ISO 15004 1, if differences exist.

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