Standards

YS/T 1582.3-2022 Active

YS/T 1582.3-2022 The Chemical Analysis of Coarse Antimony - Part 3: Determination of Arsenic, Lead, Copper, Selenium, and Iron Content - Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES)

This document is applicable to the determination of arsenic, lead, copper, selenium, and iron content in crude antimony.

Publish Date: 2022-09-30

YS/T 1582.2-2022 Active

YS/T 1582.2-2022 The Chemical Analysis of Coarse Antimony - Part 2: Determination of Gold Content - The Fire Gold Weighing Method

This document is applicable to the determination of gold content in crude antimony. The determination range is 5.00 g/t to 2000.0 g/t.

Publish Date: 2022-09-30

YS/T 1582.1-2022 Active

YS/T 1582.1-2022 Method for Chemical Analysis of Tantalum Oxide Part 1: Determination of Tantalum Content - Triethylammonium Cerium(IV) Sulfate Titrimetric Method

This document is applicable to the determination of antimony content in crude antimony (with a lead content of no more than 3%). The measurement range is 80.00% to 99.00%.

Publish Date: 2022-09-30

YS/T 536.14-2022 Active

YS/T 536.14-2022 Method for chemical analysis of bismuth - Part 14: Determination of copper, lead, zinc, iron, silver, arsenic, tellurium and antimony content - Inductively coupled plasma atomic emission spectroscopy

This document is applicable to the determination of the contents of copper, lead, zinc, iron, silver, arsenic, tellurium, and antimony in bismuth by the ICP method.

Publish Date: 2022-09-30

YS/T 301-2022 Active

YS/T 301-2022 cobalt concentrate

This document is applicable to cobalt concentrates obtained by flotation or other methods from cobalt-bearing ores, which are used for the production of cobalt metal, cobalt oxide, or other cobalt-containing compounds.

Publish Date: 2022-09-30

YS/T 1554-2022 Active

YS/T 1554-2022 The ultrasonic testing method for tungsten, molybdenum and their alloy rod and tube materials

This document is applicable to the ultrasonic testing of tungsten, molybdenum, and their alloy rods with a diameter of 16 mm to 150 mm, prepared by powder metallurgy, as well as the ultrasonic testing of tungsten, molybdenum, and their alloy tubes with an outer diameter of 30 mm to 100 mm and a wall thickness to outer diameter ratio of less than 0.22.

Publish Date: 2022-09-30

YS/T 1553-2022 Active

YS/T 1553-2022 Titanium diboride powder

This document is applicable to titanium diboride powder used in the preparation of composite materials, ceramic materials, wear-resistant materials, and the like.

Publish Date: 2022-09-30

YS/T 424.5-2022 Active

YS/T 424.5-2022 The Chemical Analysis Methods of Titanium Boride Powder - Part 5: Determination of Oxygen Content by Pulsed Heating Inert Gas Fusion-Infrared Absorption Method

This document is applicable to the determination of oxygen content in titanium diboride powder. The measurement range is: not more than 5.00%.

Publish Date: 2022-09-30

YS/T 424.4-2022 Active

YS/T 424.4-2022 YS/T 424.4-2022 Titanium diboride powder - Chemical analysis methods - Part 4: Determination of carbon content - High-frequency combustion infrared absorption method

This document is applicable to the determination of carbon content in titanium diboride powder. The measurement range is 0.010% to 4.00%.

Publish Date: 2022-09-30

YS/T 424.3-2022 Active

YS/T 424.3-2022 Titanium diboride powder chemical analysis method - Part 3: Determination of iron content - Phenanthroline spectrophotometric method (1,10-Phenanthroline)

This document is applicable to the determination of iron content in titanium diboride powder. The measurement range is 0.01% to 1.00%.

Publish Date: 2022-09-30

YS/T 424.2-2022 Active

YS/T 424.2-2022 The Chemical Analysis of Titanium B-Boride Powder - Part 2: Determination of Total Boron Content - Neutral Titration Method

This document is applicable to the determination of the total boron content in titanium diboride powder. The measurement range is 20.00% to 40.00%.

Publish Date: 2022-09-30

YS/T 424.1-2022 Active

YS/T 424.1-2022 Titanium content determination for boron nitride powder using ammonium iron sulfate titration method (Part 1 of 3) in chemical analysis

This document is applicable to the determination of the titanium content in titanium diboride powder. The measurement range is 50.00% to 80.00%.

Publish Date: 2022-09-30