SRM 2135c  Ni/Cr Thin Film Depth Profile镍/铬薄膜深度剖面  each
SRM 2137  Boron Implant in Silicon Standard for Calibration of Concentration in a Depth Profile一种深度剖面浓度校正的硼硅标准  each
SRM 2139  Zinc-Aluminum Alloy锌铝合金  100g
SRM 2141  Urea尿素  2g
SRM 2143  p-Fluorobenzoic Acid对氟苯甲酸  2g
SRM 2144  m-Chlorobenzoic Acid间氯苯甲酸  2g
SRM 2151  Nicotinic Acid (Combustion Calorimetric Standard)*(燃烧量热标准)  25g
SRM 2152  Urea (Combustion Calorimetric Standard)尿素(燃烧量热标准)  25g
SRM 2159  LA Steel, Carbon & Sulfur only镧钢，碳和硫 200g
SRM 2160  LA Steel, Carbon & Sulfur only镧钢，碳和硫 200g
SRM 2165  Low Alloy Steel低合金钢  150g
SRM 2166  LA Steel, F拉钢, F  150g
SRM 2167  LA Steel, G拉钢,G  150g
SRM 2168  High Purity Iron高纯度铁  150g
美国NIST标准品 SRM 2171  LA Steel, (HSLA 100)拉钢(低合金高强度100)  150g
SRM 2172  S-7 Tool SteelS-7工具钢  150g