SRM 2538 SRM 2538 Polarization-Mode Dispers...

美国NIST标准品 SRM 2538  Polarization-Mode Dispersion (Non-Mode-Coupled) 偏振模色散(非模式耦合)  each
SRM 2541  Silicon Resistivity Standard - 0.01 ohm•cm Level each
SRM 2543  Silicon Resistivity Standard - 1 ohm•cm Level each
SRM 2553  Optical Fiber Coating Diameter (Nominal Refractive Index 1.504)光纤涂层直径(公称折射率1.504)each
SRM 2554  Optical Fiber Coating Diameter (Nominal Refractive Index 1.515)光纤涂层直径(公称折射率1.515) each
SRM 2556  Recycled Pellet (Autocatalyst)再生颗粒(自动催化剂)  70g
SRM 2557  Used Auto Catalyst (Monolith)用于汽车催化剂(载体)  70g