Number
Name
Status
- GB/T 6286-2021 《Determination of bulk density for molecular sieve》 Active Products
- GB/T 6015-2021 《Determination of trace dimer and residual extraction agent of butadiene for industrial use—Gas chromatographic method》 Active Products
- GB/T 6017-2021 《Determination of purity and hydrocarbon impurities of butadiene for industrial use—Gas chromatographic method》 Active Products
- GB/T 5138-2021 《Liquid chlorine for industrial use》 Active Products
- GB/T 3915-2021 《Styrene for industrial use》 Active Products
- GB/T 1918-2021 《Potassium nitrate for industrial use》 Active Products
- GB/T 1615-2021 《Carbon disulfide for industrial use》 Active Products
- GB/T 1614-2021 《Barium carbonate for industrial use》 Active Products
- GB/T 611-2021 《Chemical reagent—General method for the determination of density》 Active Products
- GB/T 614-2021 《Chemical reagent—General method for the determination of refractive index》 Active Products
- GB/T 39560.4-2021 《Determination of certain substances in electrical and electronic products—Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS , ICP-OES and ICP-MS》 Active Products
- GB/T 39560.5-2021 《Determination of certain substances in electrical and electronic products—Part 5: Cadmium，lead and chromium in polymers and electronics and cadmium and lead in metals by AAS，AFS，ICP-OES and ICP-MS》 Active Products
- GB/T 21287-2021 《Electronic specialty gas—Nitrogen trifluoride》 Active Products
- GB/T 40891-2021 《Determination of lyral in cosmetics—Gas chromatography-mass spectrometry》 Active Products
- GB/T 40950-2021 《Determination of alkyl (C12~C22) trimethyl ammonium salt in cosmetics—High performance liquid chromatography tandem mass spectrometry》 Active Products
- GB/T 40955-2021 《Determination of octamethylcyclotetrasiloxane(D4) and decamethylcyclopentasiloxane(D5) in cosmetics—Gas chromatography》 Active Products
- GB/T 40896-2021 《Determination of diethylene glycol monoethyl ether in cosmetics—Gas chromatography mass spectrometry》 Active Products
- GB/T 40898-2021 《Determination of prohibited bemegride and its salts in cosmetics—High performance liquid chromatography》 Active Products
- GB/T 40899-2021 《Determination of prohibited bromisoval, carbromal and carisoprodol in cosmetics—High performance liquid chromatography》 Active Products
- GB/T 40894-2021 《Determination of prohibited substances thiamazole in cosmetics—High performance liquid chromatography》 Active Products
- GB/T 40897-2021 《Determination of alkali sulfides and alkaline earth sulfides in cosmetics—Methylene blue spectrophotometric method》 Active Products
- GB/T 40901-2021 《Determination of eleven kinds of prohibited azoles antifungal agents in cosmetics—Liquid chromatography-tandem mass spectrometry》 Active Products
- GB/T 40900-2021 《Determination of fluorescent brightener 367 and fluorescent brightener 393 in cosmetics—Liquid chromatography-tandem mass spectrometry》 Active Products
- GB/T 7991.3-2021 《Test method of viterous and porcelain enamels—Part 3：Determination of resistance to thermal shock》 Active Products
- GB/T 3637-2021 《Liquid sulphur dioxide》 Active Products
- GB/T 29732-2021 《Surface chemical analysis—Medium resolution auger electron spectrometers—Calibration of energy scales for elemental analysis》 Active Products
- GB/T 24370-2021 《Nanotechnologies—Characterization of cadmium chalcogenide colloidal quantum dot—UV-Vis absorption spectroscopy》 Active Products
- GB/T 41050-2021 《Nanotechnologies—Test method of the degradation of benzene by nano photocatalyst》 Active Products
- GB/T 24487-2022 《Alumina》 Active Products
- GB/T 6609.2-2022 《Chemical analysis methods and determination of physical performance of alumina—Part 2: Determination of loss of mass at 300 ℃ and 1000 ℃》 Active Products