HG/T 6143-2023
HG/T 6143-2023
Urine—Determination of phenylglyoxylic acid and mandelic acid—High performance liquid chromatographic method
HG/T 6143-2023
Hydroxyacetonitrile for industrial use Determination of hydroxyacetonitrile,formaldehyde and hydrocyanic acid
HG/T 6143-2023
Standard Test Method for Acidity in Vinyl Acetate and Acetaldehyde