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GB/T 223.90-2021 Iron, steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method $255.00 immediately valid
GB/T 223.91-2021 Iron, steel and alloy—Determination of copper—2,2’-Biquinoline spectrophotometric method $225.00 via email in 1~3 business day valid
GB/T 223.92-2023 Iron, steel and alloy—Determination of lanthanum, cerium, praseodymium, neodymium and samarium content—Inductively coupled plasma mass spectrometry $400.00 via email in 1~5 business day valid
GB/T 22368-2008 Low-alloy steel - Determination of multi-element contents - Glow discharge optical emission spectrometry(Routine method) $370.00 via email in 1~3 business day valid
GB/T 24194-2009 Ferrosilicon—Determination of aluminium calcium manganese chromium titanium copper phosphorus and nickel content—Inductively coupled plasma atomic emission spectrometric method $140.00 via email in 1~3 business day superseded
GB/T 24194-2024 Ferrosilicon—Determination of multi-element contents—Inductively coupled plasma atomic emission spectrometric method $630.00 via email in 1~8 business day valid
GB/T 24198-2009 Ferronickel—Determination of nickel silicon phosphorus manganese cobalt chromium and copper contents—Wavelength dispersive X-ray fluorescence spectrometry(Routine method) $120.00 via email in 1~3 business day valid
GB/T 24213-2009 General rules for original position statistic distribution analysis method $150.00 via email in 1~3 business day valid
GB/T 24234-2009 Cast iron—Determination of multi-element contents—Spark discharge atomic emission spectrometric method (Routine method) $120.00 immediately valid
GB/T 24514-2009 Zinc and/or aluminium based coatings on steel—Determination of coating mass per unit area and chemical composition—Gravimetry,inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry $420.00 via email in 1~5 business day valid
GB/T 24520-2009 Cast iron and low alloy steel—Determination of lanthanum, cerium and magnesium content—Inductively coupled plasma atomic emission spectrometric method $240.00 via email in 1~3 business day valid
GB/T 24583.1-2009 Vanadium-Nitrogen alloy—Determination of vanadium content—The ammonium ferrous sulfate titration method $120.00 via email in 1~3 business day superseded
GB/T 24583.1-2019 Vanadium-nitrogen—Determination of vanadium content—Ammonium ferrous sulfate titration method $140.00 via email in 1~2 business day valid
GB/T 24583.2-2009 Vanadium—Nitrogen alloy—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas $120.00 via email in 1~3 business day superseded
GB/T 24583.2-2019 Vanadium-nitrogen—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas $140.00 via email in 1~3 business day valid
GB/T 24583.3-2009 Vanadium-Nitrogen alloy-Determination of nitrogen content—The distillation-neutralization titration method $120.00 via email in 1~3 business day superseded
GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method $160.00 via email in 1~3 business day valid
GB/T 24583.4-2009 Vanadium—Nitrogen alloy—Determination carbon of content—The infrared absorption method $120.00 via email in 1~3 business day superseded
GB/T 24583.4-2019 Vanadium-nitrogen—Determination of carbon content—Infrared absorption method $140.00 via email in 1~3 business day valid
GB/T 24583.5-2009 Vanadium-Nitrogen alloy—Determination of phosphorus content—The bismuth molybdenum blue spectrophotometry method $120.00 via email in 1~3 business day superseded
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