Browse Standards
Found: 226547 — page 4438 of 4720
Superseded
GB/T 12687.8-1990 — Chemical analysis of nitrate of rare earth for agriculture--Determination for the water insoluble matter content--Gravimetric method
National·Recommended
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Superseded
GB/T 12688.1-1990 — Styrene for industrial use--Determination of purity--Gas chromotographic method
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$150.00PDF
Withdrawn
GB/T 12688.2-1990 — Styrene for industrial use--Determination of purity--Crystallizing point method
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$165.00PDF
Superseded
GB/T 12688.3-1990 — Styrene for industrial use--Determination of content of polymer--Photometric method
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$105.00PDF
Superseded
GB/T 12688.4-1990 — Styrene for industrial use--Determination of content of peroxides--Titrimetric method
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$105.00PDF
Superseded
GB/T 12688.5-1990 — Styrene for industrial use--Determination of content of total aldehydes--Titrimetric method
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$150.00PDF
Withdrawn
GB/T 12688.6-1990 — Styrene for industrial use. Determination of trace sulfur. Oxidative micro-coulometric method
National·Recommended
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$119.00PDF
Valid
GB/T 12688.7-1990 — Styrene for industrial use--Determination of content of inhibitor (P-tert-butylcatechol)--Colorimetric method
National·Recommended
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$165.0015 pages
Superseded
GB/T 12689.1-1990 — Zinc and zinc alloys--Determination of aluminium content--EDTA titrimetric method
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$225.00PDF
Superseded
GB/T 12689.10-1990 — Zinc and zinc alloys--Determination of lead content--Flame atomic absorption spectrometric method
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$109.00PDF
Superseded
GB/T 12689.11-1990 — Zinc and zinc alloys--Determination of antimony content--Flame atomic absorption spectrometric method
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$85.00PDF
Superseded
GB/T 12689.12-1990 — Zinc and zinc alloys--Determination of cadmium content--Flame atomic absorption spectrometric method
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$55.00PDF
Superseded
GB/T 12689.13-1990 — Zinc and zinc alloys--Determination of aluminium content--Electrothermal atomic absorption spectrometric method
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$165.00PDF
Superseded
GB/T 12689.14-1990 — Zinc and zinc alloys--Determination of aluminium content--Chromazurol S spectrophotometric method
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Superseded
GB/T 12689.2-1990 — Zinc and zinc alloys--Determination of copper content--Lead diethyldithio-carbamate spectrophotometric method
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$109.00PDF
Superseded
GB/T 12689.3-1990 — Zinc and zinc alloys--Determination of iron content--Sulphosalicylic acid spectrophotometric method
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$85.00PDF
Superseded
GB/T 12689.4-1990 — Zinc and zinc alloys--Determination of arsenic content--Molybdenum blue spectrophotometric method
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$85.00PDF
Superseded
GB/T 12689.5-1990 — Zinc and zinc alloys--Determination of silicon content--Molybdenum blue spectrophotometric method
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$130.00PDF
Superseded
GB/T 12689.6-1990 — Zinc and zinc alloys--Determination of tin content--Phenylfluorone-cetyltrimethylammonium bromide spectrophotometric method
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$85.00PDF
Superseded
GB/T 12689.7-1990 — Zinc and zinc alloys--Determination of magnesium content--Flame atomic absorption spectrometric method
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$145.00PDF
Superseded
GB/T 12689.8-1990 — Zinc and zinc alloys--Determination of iron content--Flame atomic absorption spectrometric method
National·Recommended
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$85.00PDF
Superseded
GB/T 12689.9-1990 — Zinc and zinc alloys--Determination of copper content--Flame atomic absorption spectrometric method
National·Recommended
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$130.00PDF
Superseded
GB/T 12690.1-1990 — Lanthanum oxide--Determination of cerium oxide, praseodymium oxide, nedeodynium oxide, samarium oxide and yttrium oxide--Induetively coupled plasma atomic emission spectrographic method
National·Recommended
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$105.00PDF
Superseded
GB/T 12690.10-1990 — Gadolinium oxide--Determination of samarium oxide, europium oxide, terbium oxide, dysprosium oxide and yttrium oxide contents--Emission spectrographic method
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$85.00PDF
Superseded
GB/T 12690.11-1990 — Terbium oxide--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, dysprosium oxide, holmium oxide, erbium oxide and yttrium oxide contents--Emission spectrogra
National·Recommended
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$135.00PDF
Superseded
GB/T 12690.12-1990 — Neodymium and samarium--Determination of oxygen content--Impulse-infrared absorption method
National·Recommended
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$235.00PDF
Superseded
GB/T 12690.13-1990 — Neodymium and samarium--Determination of carbon content--High frequency--Infrared absorption method
National·Recommended
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$240.00PDF
Superseded
GB/T 12690.14-1990 — Lanthanum oxide, cerium oxide, neodymium oxide, gadolinium oxide--Determination of cobalt, iron, manganese, nichel, copper, ckromium, lead and zinc in oxides contents--Emission spectrographic method
National·Recommended
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$105.00PDF
Superseded
GB/T 12690.15-1990 — Rare-earth metals and their oxides--Determination of thorium content--Arsenazo IIIspectrophotometric method
National·Recommended
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$235.00PDF
Superseded
GB/T 12690.16-1990 — Rare-earth metals and their oxides--Determination of calcium content--Flame atomic absorption spectrometric method
National·Recommended
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$105.00PDF
Superseded
GB/T 12690.17-1990 — Rare-earth metals and their oxides--Determination of calcium content--Nitrous oxide-acetylene flame atomic absorption spectrometric method
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Superseded
GB/T 12690.18-1990 — Rare-earth metals and their oxides--Determination of chlorine content--Mercury sulphoeyanie-iron nitrate spectrophotometric method
National·Recommended
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$115.00PDF
Superseded
GB/T 12690.19-1990 — Rare-earth metals and their oxides--Determination of iron content--1, 10-phenanthroline spectrophotometric method
National·Recommended
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$145.00PDF
Superseded
GB/T 12690.2-1990 — Lanthanum oxide--Determination of neodymium oxide, cerium oxide, praseodymium oxide, samarium oxide and yttrium oxide contents-Emission spectrographic method
National·Recommended
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$55.00PDF
Superseded
GB/T 12690.20-1990 — Rare-earth metals and their oxides--Determination of iron content--Potassium thiocyanate, 1, 10-phenanthroline spectrophotometric method
National·Recommended
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$175.00PDF
Superseded
GB/T 12690.21-1990 — Rare-earth metals and their oxides--Determination of phosphorus content--Molybdenum blue spectrophotometric method
National·Recommended
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$195.00PDF
Superseded
GB/T 12690.23-1990 — Rare-earth metals and their oxides--Determination of acid soluble silicon oxide--Molybdenum blue spectrophotometric method
National·Recommended
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$165.00PDF
Superseded
GB/T 12690.25-1990 — Rare-earth metals and their oxides--Determination of magnesium content--Flame atomic absorption spectrometric method
National·Recommended
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$169.00PDF
Superseded
GB/T 12690.26-1990 — Rare-earth metals and their oxides--Determination of sodium content--Flame atomic absorption spectrometric method
National·Recommended
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$169.00PDF
Superseded
GB/T 12690.27-1990 — Rare-earth metals and their oxides-Determination of ignition loss-Gravimetric method
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$169.00PDF
Superseded
GB/T 12690.3-1990 — Cerium and cerium oxide--Determination of lanthanum oxide, praseodymium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Emission spectrographic method
National·Recommended
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$55.00PDF
Superseded
GB/T 12690.4-1990 — Cerium oxide--Determination of lanthanum oxide, praseodymium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Spectrochemical method
National·Recommended
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Superseded
GB/T 12690.5-1990 — Praseodymium oxide--Determination of lanthanum oxide, cerium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--X ray fluorescence spectrometric method
National·Recommended
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$125.00PDF
Superseded
GB/T 12690.6-1990 — Praseodymium oxide--Determination of lanthanum oxide, cerium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Emission spectrographic method
National·Recommended
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$85.00PDF
Superseded
GB/T 12690.7-1990 — Neodymium and neodymium oxide--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, samarium oxide, yttrium oxide contents--X-ray fluorescence spectrometric method
National·Recommended
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$225.00PDF
Superseded
GB/T 12690.8-1990 — Neodymium and neodymium oxide--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, samarium oxide and yttrium oxide contents--Emission spectrographic method
National·Recommended
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$240.00PDF
Superseded
GB/T 12690.9-1990 — Neodymium oxide--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, samarium oxide and yttrium oxide contents--Spectrochemical method
National·Recommended
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$85.00PDF
Superseded
GB/T 12691-1990 — Air compressor oils
National·Recommended
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$150.00PDF