NA 027

DIN Standards Committee Optics and Precision Mechanics

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Standards of NA 027

Number: 1,214

DIN 4646 1933-05 Lenses for eye-protectors; scope, requirements, dimensions, marking More  Order from Beuth Verlag
DIN 3183 1932-10 Respiratory protective devices; threads for facepieces; centre thread connection; german version EN 148-2:1987 More  Order from Beuth Verlag
DIN 3182 1932-10 Respiratory protective devices and diving apparatus - Standard thread - Part 1: Theoretic profile More  Order from Beuth Verlag
DIN 3181 1931-09 Breathing apparatus; filters for respiratory protective devices, safety requirements, testing and marking of gas and combined filters More  Order from Beuth Verlag

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