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GB/T 8550.7-1987 Copper-nickel alloys--Determination of cobalt content--Flame atomic absorption spectrophotometric method 
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GB/T 8550.1-1987 Copper-nickel alloys--Determination of copper content--Electrolytic-flame atomic absorption spectrophotometric method 
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GB/T 8550.16-1987 Copper-nickel alloys--Determination of iron content--1, 10-phenanthroline spectrophotometric method 
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GB/T 8550.4-1987 Copper-nickel alloys--Determination of iron content--Potassium dichromate titrimetric method 
  Issued on:   Price(USD):
GB/T 8550.10-1987 Copper-nickel alloys--Determination of lead content--Flame atomic absorption spectrophotometric method 
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GB/T 8550.5-1987 Copper-nickel alloys--Determination of lend content--Na2EDTA titrimetric method 
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GB/T 8550.8-1987 Copper-nickel alloys--Determination of magnesium content--Flame atomic absorption spectrophotometric method 
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GB/T 8550.3-1987 Copper-nickel alloys--Determination of manganese content--Ammonium ferrous sulfate titrimetric method 
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GB/T 8550.17-1987 Copper-nickel alloys--Determination of manganese content--Potassium periodate spectrophotometric method 
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GB/T 8550.2-1987 Copper-nickel alloys--Determination of nickel content--Na2EDTA titrimetric method 
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GB/T 8550.12-1987 Copper-nickel alloys--Determination of phosphorus content--Extraction-molybdenum blue spectrophotometric method 
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GB/T 8550.21-1987 Copper-nickel alloys--Determination of silicon content--Extraction-molybdenum blue spectrophotometric method 
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GB/T 8550.20-1987 Copper-nickel alloys--Determination of silicon content--Molybdenum blue spectrophotometric method 
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GB/T 8550.18-1987 Copper-nickel alloys--Determination of sulfur content--Potentiometric titration method after distillation 
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GB/T 8550.13-1987 Copper-nickel alloys--Determination of tin content--Phenylfluorone-cetyl trimethyl ammonium bromide ternary complex spectrophotometric method 
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GB/T 8550.9-1987 Copper-nickel alloys--Determination of zinc content--Flame atomic absorption spectrophotometric method 
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GB 4878-1985 Correlative parameters and measuring methods for radio cassette recorder 
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GB/T 6546-1986 Corrugated fibreboard--Determination of edgewise crush resistance 
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GB/T 6547-1986 Corrugated fibreboard--Determination of thickness 
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GB/T 6840-1986 Cotton band for determination of sew ability to sewing thread 
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