Ophthalmic optics. Contact lenses - Measurement methods1 Scope This document specifies the methods for measuring the physical and optical properties of contact lenses specified in ISO 183692, i. e. radius of curvature, label back vertex power, diameter, thickness, inspection of edges, inclusions and surface imperfections and determination of spectral transmittance. This document also specifies the equilibrating solution, i. e. standard saline solution, for testing of contact lenses.

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BS EN 4332 on steel filler metal for welding for aerospace applications is useful for:

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BS 8201 gives recommendations and guidance on the material

The type and number of test specimens

This document provides guidelines for planning the involvement of spontaneous volunteers (SVs) in incident response and recovery

Aluminium tubular products are popular in aerospace applications due to the alloys attractive performance characteristics

The objective is to provide reliable

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It also specifies test designations

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