Hợp kim cứng. Phương pháp xác định độ cứng Vicke

Hard metals. Determination of Vicker hardness

Chất lượng đất − Xác định diisopropyl methylphosphonat, axit ethyl methylphosphonic, axit isopropyl methylphosphonic, axit methylphosphonic và axit pinacolyl methylphosphonic trong đất bằng phương pháp chiết chất lỏng dưới áp suất cao và sắc ký lỏng/hai lần khối phổ (LC/MS/MS)

Standard test method for determination of diisopropyl methylphosphonate, ethyl methylphosphonic acid, isopropyl methylphosphonic acid, methylphosphonic acid and pinacolyl methylphosphonic acid in soil by pressurized fluid extraction and analyzed by liquid chromatography/tandem mass spectrometry