SRM 631  Spectrographic Zinc Spelter (Modified)光譜粗鋅  block
SRM 633a  Portland Cement 硅酸鹽水泥  4 vials x 5g
SRM 634a  Portland Cement 硅酸鹽水泥  100g
SRM 641  Titanium Alloy, 8 Mn (A) 鈦合金, 8 Mn (A)  disk
SRM 642  Titanium Alloy, 8 Mn (B) 鈦合金, 8 Mn (B)  disk
SRM 643  Titanium Alloy, 8 Mn (C) 鈦合金, 8 Mn (C)  disk
SRM 647  Titanium Alloy, Al-Mo-Sn-Zr 鈦合金, Al-Mo-Sn-Zr  50g
SRM 648  Titanium-Base Alloy 5Al-2Sn-2Zr-4Cr-4Mo 鈦基合金5Al-2Sn-2Zr-4Cr-4Mo  50g
SRM 649  Titanium-Base Alloy (15V-3Al-3Cr-3Sn) 鈦基合金(15V-3Al-3Cr-3Sn)  50g
SRM 654b  Titanium Alloy, Al-V 鈦合金, Al-V  disk