Pressure vessels—Part 4:Fabrication,inspection and testing,and acceptance

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Programming languages ALGOL 60

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Directives for the work of reference materials(2) The common terms and definitions of reference materials

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Directives for the work of reference materials(3) General principles and statistic methods for certification of reference materials

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Directives for the work of reference materials(5)—Technologic rules for reference materials of chemical composition

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Directives for the work of reference materials(7)—General requirements for the competence of reference material producers

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