SRM 8851 Zeolite A SRM 8850 Zeolite Y 沸石 35-40g 美国NI...

SRM 8820  Scanning Electron Microscope Scale Calibration Artifact扫描电子显微镜刻度尺  each
美国NIST标准品 SRM 8850  Zeolite Y 沸石  35-40g
美国NIST标准品 SRM 8851  Zeolite A 沸石  35-40g
SRM 8852  Ammonium ZSM-5 Zeolite  35-40g
SRM 8983  Silicon Nitride Powder 氮化硅粉  4.5g
SRM 8988  Titanium Dioxide Powder - Particle Size Distribution二氧化钛粉体粒度分布 6g
SRM 9951  Aluminum Wafer Drop-In Sample Holder (6 in)  each
SRM 9952  Aluminum Wafer Drop-In Sample Holder (8 in)  each
SRM C1252a  Phosphorus Deoxidized Copper - Cu IX磷脱氧铜-Cu IX  block
SRM C1112  Gilding Metal A (block) disk
SRM C1113  Gilding Metal B (block) disk