GB/T 223.31-2026
钢铁及合金 砷含量的测定 分光光度法和碘量法
Iron, steel and alloy—Determination of arsenic content—spectrophotometric method and iodimetric method
- 实施日期
- 2026-09-01
- ICS 分类
- 77.080.01
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 223.31-2026
Iron, steel and alloy—Determination of arsenic content—spectrophotometric method and iodimetric method
GB/T 223.13-2025
Iron, steel and alloy—Determination of vanadium content—Titrimetric method and spectrophotometric method
GB/T 223.11-2025
Iron, steel and alloy—Determination of chromium content—Titrimetric method and spectrophotometric method
GB/T 223.8-2025
Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method
GB/T 223.6-2025
Iron, steel and alloy—Determination of boron content—Neutralization titrimetric method and spectrophotometric method
GB/T 17616-2025
Iron and steel coding system for irons, steels and alloys
GB/T 223.92-2023
GB/T 223.60-2024
Iron, steel and alloy—Determination of silicon content—Gravimetric method
GB/T 223.92-2023
Iron, steel and alloy—Determination of lanthanum, cerium, praseodymium, neodymium and samarium content—Inductively coupled plasma mass spectrometry
GB/T 223.54-2022
Iron, steel and alloy—Determination of nickel content—Flame atomic absorption spectrometric method
GB/T 223.63-2022
Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method
GB/T 223.91-2021
Iron, steel and alloy—Determination of copper—2,2’-Biquinoline spectrophotometric method
GB/T 223.90-2021
Iron, steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method
GB/T 223.37-2020
Iron, steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation
GB/T 223.89-2019
Iron, steel and alloy—Determination of tellurium content—Hydride generation-atomic fluorescence spectrometric method
GB/T 223.88-2019
Iron, steel and alloy—Determination of calcium and magnesium contents—Inductively coupled plasma atomic emission spectrometric method
GB/T 223.87-2018
Iron,steel and alloy—Determination of calcium and magnesium—Inductively coupled plasma mass spectrometric method
GB/T 223.82-2018
Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas
GB/T 4223-2017
Iron and steel scraps
GB/T 34208-2017
Iron and steel—Determination of antimony and tin content—Inductively coupled plasma atomic emission spectrometric method