美国国家标准局标准品(NIST)——NIST Standard Reference Materials® (SRMs ®)美国国家标准技术研究院(NIST)是属于美国商业部的技术管理部门NIST标准品及标准件包括:食品与农业,健康与诊断,法医学,环境,高纯试剂和工业卫生等行业。每个SRM产品都附带包括标注不确定性赋值的文件以及MSDS(随货提供)。文件包括使用方法,稳定性以及NIST的检测方法。
Tungsten-Chromium-Vanadium Steel | 50c | 150 g |
Bearing Metal (84Pb-10Sb-6Sn) | 53e | 150 g |
Bearing Metal (Tin Base) | 54d | 170 g |
Silicon Metal | 57b | 40 g |
Ferrosilicon (73% Si Regular Grade) | 58a | 75 g |
Ferrosilicon | 59a | 50 g |
Ferrochromium, High Carbon | 64c | 100 g |
Ferromanganese, High Carbon | 68c | 100 g |
Bauxite (Arkansas) | 69b | 60 g |
LA Steel (AISI 4130) | 72g | 150 g |
Stainless Steel, Cr (SAE 420) | 73c | 150 g |
Burnt Refractory (Al203-40%) | 76a | 75 g |
Burnt Refractory (Al203-60%) | 77a | 75 g |
Burnt Refractory (Al203-70%) | 78a | 75 g |
Fluorspar, Customs Grade | 79a | 120 g |
Glass Sand | 81a | 75 g |
Cast Iron (Ni-Cr) | 82b | 150 g |
Potassium Hydrogen Phthalate | 84l | 60 g |
Aluminum-Silicon Alloy | 87a | 75 g |
Dolomitic Limestone | 88b | 75 g |
Glass, Lead Barium | 89 | 45 g |
Ferrophosphorus | 90 | 75 g |
Soda-Lime Glass Powder | 92 | 45 g |
Borosilicate Glass | 93a | wafer |
Zinc-Base Die Casting Alloy | 94c | 150 g |