GB - Chinese national standards

Information technology--Open Systems Interconnection--Security frameworks for open systems--Part 7:Security audit and alarms framework

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Technology requirement for making standard samples of tea

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General requirement of the tea sensory test room

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Instant tea in solid form—Part 1: Sampling

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Instant tea in solid form—Part 2: Determination of total ash

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Instant tea in solid form—Part 4: Specification

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Instant tea—Part 5: Methods for determination of free-flow and compacted bulk densities

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Electric irons for household or similar use—Methods for measuring performance

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Locomotive and car clearance boundary and structure clearance boundary for 762mm gauge railways--Classification and basic dimensions

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Phosphate rock and concentrate--Determination of sulfur trioxide content--Gravimetric method

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