GB/T Standards

Found: 49235 — page 804 of 1026

Valid

GB/T 23274.7-2009 — Methods for chemical analysis of stannic oxide - Part 7: Determination of soluable matter in hydrochloric acid - Gravimetric method

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GB/T 23274.8-2009 — Methods for chemical analysis of stannic oxide - Part 8: Determination of loss on ignition - Gravimetric method

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GB/T 23275-2009 — Methods for chemical analysis of ruthenium determination of lead, iron, nickel, aluminum, copper, silver, gold, platinum, palladium, rhodium, iridium and silicon in ruthenium powder by glow discharge mass spectrometry

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Valid

GB/T 23276-2009 — Method for chemical analysis of palladium compounds - Determination of palladium content - Complexometric titration using butanedione dioxide releasing EDTA

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GB/T 23277-2009 — Chemical analysis methods of catalysts containing precious metals - Determination of platinum, palladium and rhodium in automobile exhaust-purifying catalysts - Spectrophotometry

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Valid

GB/T 23278.1-2009 — Methods for chemical analysis of sodium stannate - Part 1: Determination of tin content - Titration

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GB/T 23278.2-2009 — Methods for chemical analysis of sodium stannate - Part 2: Determination of iron content - 1, 10-phenanthroline photometric method

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GB/T 23278.3-2009 — Methods for chemical analysis of sodium stannate - Part 3: Determination of arsenic content - Molybdoantimonyarsenate blue spectrophotometric method

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Valid

GB/T 23278.4-2009 — Methods for chemical analysis of sodium stannate - Part 4: Determination of lead content - Flame atomic absorption spectrometry

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GB/T 23278.5-2009 — Methods for chemical analysis of sodium stannate - Part 5: Determination of antimony content - Malachite green photometric method

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GB/T 23278.6-2009 — Methods for chemical analysis of sodium stannate - Part 6: Determination of free alkali content - Titration

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GB/T 23278.7-2009 — Methods for chemical analysis of sodium stannate - Part 7: Determination of alkali insoluble matter - Gravimetric analysis

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GB/T 23278.8-2009 — Methods for chemical analysis of sodium stannate - Part 8: Determination of nitrate content - Ion selective electrode method

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GB/T 23279-2009 — Sheet-feeding machine

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GB/T 23281-2009 — Metal forming machinery -- Noise measurement method of sound pressure levels

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GB/T 23282-2009 — Metal forming machinery -- Noise measurement method of sound power levels

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GB/T 23284-2009 — Micrographics -- Image mark (blip) used with 16mm and 35mm roll microfilm

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GB/T 23285-2009 — Micrographics -- Aperture cards -- Method of measuring thickness of buildup area

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GB/T 23286.1-2009 — Document management -- Electronic document file format for long-term preservation -- Part 1: Use of PDF1.4(PDF/A-1)

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Valid

GB/T 23289-2009 — Bibliographic references and source identifiers for terminology work

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Valid

GB/T 23291-2009 — Machine tools -- Test conditions for self-centering, manually-operated chucks with one-piece jaws

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Valid

GB/T 23292-2009 — Test methods for tractor fuel tank

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Valid

GB/T 23296.1-2009 — Materials and articles in contact with foodstuffs -- Plastics substances subject to limitation -- Guide to test methods for the specific migration of substances from plastics to foods and food simulants and the determination of substances in plastics and

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Valid

GB/T 23296.13-2009 — Food contact materials -- Determination of vinyl chloride monomer in plastics -- Gas chromatography

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Valid

GB/T 23296.18-2009 — Food contact materials -- Polymer -- Determination of monoethylene glycol and diethylene glycol in food simulants -- Gas chromatography

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GB/T 23296.23-2009 — Food contact materials - Polymer - Determination of 1,1,1-trimethylolpropane in food simulants - Gas chromatography

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GB/T 23296.24-2009 — Food contact materials - Polymer - Determination of 1,2-dihydroxybenzene,1,3-dihydroxybenzene,1,4-dihydroxybenzene,4,4'-dihydroxybenzophenone and 4,4'dihydroxybiphenyl in food simulants - High performance liquid chromatography

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GB/T 23296.26-2009 — Food contact materials - Polymer - Determination of formaldehyde and hexamethylenetetramine in food simulants - Spectrophotometry

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GB/T 23296.3-2009 — Food contact materials -- Determination of 1, 3-butadiene in plastics -- Gas chromatography

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GB/T 23296.5-2009 — Food contact materials - Polymer - Determination of dimethylaminoethanol in food simulants - Gas chromatography

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GB/T 23296.6-2009 — Food contact materials - Polymer - Determination of 4-methyl-1-pentene in food simulants - Gas chromatography

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Valid

GB/T 23296.8-2009 — Food contact materials -- Polymer -- Determination of acrylonitrile in food simulants -- Gas chromatography

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GB/T 23297-2009 — Shipbuilding -- Ship lines -- Identification of geometric data

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GB/T 23299-2009 — Ships and marine technology -- Hydrostatic release units

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GB/T 23300-2009 — Parallel plane disc gate valves

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GB/T 23303-2009 — Ships and marine technology -- Inflatable rescue boats -- Coated fabrics for inflatable chambers

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GB/T 23304-2009 — Shipbuilding -- Ship lines -- Formats and data organization

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Valid

GB/T 23305.1-2009 — Shipbuilding -- Topology of ship hull structure elements -- Part 1: Location of elements

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GB/T 23305.2-2009 — Shipbuilding -- Topology of ship hull structure elements -- Part 2: Description of elements

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GB/T 23305.3-2009 — Shipbuilding -- Topology of ship hull structure elements -- Part 3: Relations of elements

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GB/T 23306-2009 — Specifications for flameproof three-phase asynchronous motors for use on dispensers (frame size 63 to 100)

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GB/T 23308-2009 — Aluminium-magnesium-silicon alloy wire for overhead line conductors

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GB/T 23309-2009 — Aluminium-magnesium alloy wires for shield in cable

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GB/T 23310-2009 — Aromatic polyimide tape wrapped rectangular copper wire, class 240

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GB/T 23311-2009 — Aromatic polyimide tape wrapped round copper wire, class 240

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GB/T 23312.1-2009 — Enamelled round aluminium winding wire -- Part 1: General requirements

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GB/T 23312.2-2009 — Enamelled round aluminium winding wire - Part 2: Polyvinyl acetal enamelled round aluminium wire, class 120

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GB/T 23312.3-2009 — Enamelled round aluminium winding wire - Part 3: Polyester enamelled round aluminium wire, class 130

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