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NA 131

DIN Standards Committee Aerospace

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DIN EN 4503 [CURRENT] references following documents:

Document number Edition Title
EN ISO 3696 1995-04 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) More 
ISO 383 1976-08 Laboratory glassware; Interchangeable conical ground joints More 
ISO 4793 1980-10 Laboratory sintered (fritted) filters; Porosity grading, classification and designation More