USP 561农药标准品, USP 561 Pesticide Standard SET

1,2,3,4-Tetramethylbenzene

1,2,3,4-四甲基苯

Vitamin B2

维生素B2/核黄素

维生素K2, Vitamin K2

VPH15种稀释混标, VPH Primary Dilution Standard,2000 μg/mL in MeOH

VPH 含替代物的第一稀释标准品 / VPH16种套标, VPH Primary Dilution Standard with Surrogate,2000 μg/mL in MeOH

亚甲基蓝活性标准物质, Methylene Blue Activated Substance Standard,1000 μg/mL in Water

标准品, TOX Standard,1000 μg/mL in Methanol

21种耐磨金属混标, Wear Metals Standard,300 μg/g in 75 cSt Base oil

ASTM D5185 21种耐磨金属套标(不含金属磺酸盐), 21 Element Wear Metal Curve