Normas ISO

Optics and optical instruments -- Preparation of drawings for optical elements and systems-- Part 3: Material imperfections -- Bubbles and inclusions

Optics and optical instruments -- Preparation of drawings for optical elements and systems-- Part 2: Material imperfections -- Stress birefringence

Steel -- Conversion of hardness values to tensile strength values

Natural gas -- Determination of water by the Karl Fischer method-- Part 3: Coulometric procedure

Natural gas -- Determination of water by the Karl Fischer method-- Part 2: Titration procedure

Natural gas -- Determination of water by the Karl Fischer method-- Part 1: Introduction