Standards

YS/T 1791.1-2025 Active

YS/T 1791.1-2025 High entropy alloy powder chemical analysis method Part 1: Determination of iron, cobalt, nickel, chromium, manganese, titanium, aluminum, molybdenum and phosphorus content by inductively coupled plasma atomic emission spectroscopy

Publish Date: 2025-08-19

YS/T 568.9-2025 Active

YS/T 568.9-2025 Method for Chemical Analysis of Zirconium Oxide and Hafnium Oxide - Part 9: Determination of Impurity Element Content in Hafnium Oxide by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES)

Publish Date: 2025-08-19

YS/T 568.8-2025 Active

YS/T 568.8-2025 Method for chemical analysis of zirconium oxide and hafnium oxide - Part 8: Determination of impurity element content in zirconium oxide by inductively coupled plasma atomic emission spectroscopy

Publish Date: 2025-08-19

YS/T 426.3-2025 Active

YS/T 426.3-2025 Method for chemical analysis of antimony-beryllium core blocks - Part 3: Determination of carbon content by high-frequency infrared absorption method

Publish Date: 2025-08-19

YS/T 426.2-2025 Active

YS/T 426.2-2025 The Chemical Analysis Methods for Antimony-Beryllium Core Part 2: Determination of Antimony Content - Potassium Bromate Titration Method

Publish Date: 2025-08-19

YS/T 254.7-2025 Active

YS/T 254.7-2025 Method for chemical analysis of beryllium concentrate and green beryl: Part 7: Determination of moisture content by weight method

Publish Date: 2025-08-19

YS/T 555.9-2025 Active

YS/T 555.9-2025 The Chemical Analysis Method for Molybdenum Concentrates - Part 9: Determination of Potassium and Sodium Content - Flame Atomic Absorption Spectrometry

Publish Date: 2025-08-19

YS/T 555.8-2025 Active

YS/T 555.8-2025

Publish Date: 2025-08-19

YS/T 1800-2025 Active

YS/T 1800-2025

Publish Date: 2025-08-19

YS/T 1799-2025 Active

YS/T 1799-2025 Lithium powder

Publish Date: 2025-08-19

YS/T 1814-2025 Active

YS/T 1814-2025 Determination of Trace Element Content in High Purity Niobium Oxide (Nb2O5) by Inductively Coupled Plasma Mass Spectroscopy

Publish Date: 2025-08-19

YS/T 358.13-2025 Active

YS/T 358.13-2025 Method for Chemical Analysis of Tantalum Iron and Nb Iron Fine Ore - Part 13: Determination of Impurity Element Content by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES)

Publish Date: 2025-08-19