SRM 705a Polystyrene （Narrow Molecular Weight Dis 返回列表页

SRM 674b  X-Ray Powder Diffraction Intensity Set (Quantitative Powder Diffraction Standard) 射线粉末衍射强度集(定量粉末衍射标准)  10.00 g (powder)
SRM 675  Line Position, Mica (XRD)线位置，云母(X射线衍射)  7.5g
SRM 676a  Alumina Powder for Quantitative Analysis by X-ray Diffraction X射线衍射定量分析用氧化铝粉体  20g
SRM 685r  High Purity Gold (Rod) rod 高纯度金(棒) 15g
SRM 688  Basalt Rock玄武岩岩石  60g
SRM 689  Ferrochromium Silicon 铬铁硅 100g
SRM 690  Iron Ore Canada加拿大铁矿 100g
SRM 691  Iron Oxide, Reduced 氧化铁 100g
SRM 692  Iron Ore, Labrador铁矿，拉不拉多地区  100g
SRM 693  Iron Ore (Nimba)铁矿(宁巴地区)  100g
SRM 694  Phosphate Rock, Western磷矿石  90g
SRM 695  Trace Elements in Multi-Nutrient Fertilizer多养分肥料中的微量元素 70g
SRM 696  Bauxite, Surinam 铝矾土  60g
SRM 697  Bauxite, Dominican 铝矾土 60g
SRM 698  Bauxite, Jamaican 铝矾土  60g
SRM 699  Alumina (Reduction Grade) 氧化铝(还原级)  60g
SRM 705a  Polystyrene (Narrow Molecular Weight Distribution) 聚苯乙烯(窄分子量分布)  5g
SRM 706a  Polystyrene 聚苯乙烯 18g
SRM 709  Extra Dense Lead Glass 超致密铅玻璃 500g
SRM 717a  Hi Boron Glass Viscosity 硼玻璃粘度 450g
SRM 720  Sapphire Heat Capacity蓝 宝石热容量  15g
SRM 723e  Tris Acidimetric 50g
SRM 726  Selenium, Inter-Purity 硒，纯度 450g
SRM 728  Zinc, Intermediate Purity 锌，中间纯度  450g