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GB/T 6911.1-1986
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Methods for analysis ofwater for boiler and for cooling--The determination of sulfate--Gravimetric method
WITHDRAWN published on 16.9.1986
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GB/T 6911.2-1986
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Methods for analysis of water for boiler and for cooling--The determination of sulfate--Photometric method as barium chromate
WITHDRAWN published on 16.9.1986
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GB/T 6911.3-1986
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Methods for analysis of water for boiler and for cooling--The determination of sulfate--Potentiometric titration method
WITHDRAWN published on 16.9.1986
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GB/T 6912.1-1986
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Methods for analysis of water for boiler and for cooling—The determination of nitrates and nitrites—Ultraviolet spectrophotometry for nitrates
WITHDRAWN published on 16.9.1986
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GB/T 6912.2-1986
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Methods for analysis of water for boiler and for cooling—The determination of nitrates and nitrites— Ultraviolet spectrophotometry for nitrites
WITHDRAWN published on 16.9.1986
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GB/T 6912.3-1986
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Methods for analysis of water for boiler and for cooling—The determination of nitrates and nitrites—Alpha-naphthylamine hydrochloride photometric method
WITHDRAWN published on 16.9.1986
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GB/T 6913-2008
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Analysis of water used in boiler and cooling system—Determination of phosphorus
WITHDRAWN published on 1.4.2008
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GB/T 6913.1-1986
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Methods for analysis of water for boiler and for cooling—The determination of phosphates—Orthophosphates
WITHDRAWN published on 16.9.1986
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GB/T 6913.2-1986
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Methods for analysis of water for boiler and for cooling—The determination of phosphates—Total inorganic phosphates
WITHDRAWN published on 16.9.1986
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GB/T 6913.3-1986
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Methods for analysis of water for boiler and for cooling—The determination of phosphates—Total phosphates
WITHDRAWN published on 16.9.1986
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