501-501 1g C/S Ring Standard 0.032% C, 0.033% S 454g 碳硫标样,碳:0.032%;硫:0.033%
501-502 SAAR871 1g C/S Ring Standard, 0.051% C, 0.034% S 454g 碳硫标样
501-503 SAAR872 1g C/S Ring Standard, 0.180% C, 0.019% S 454g 碳硫标样
501-504 SAAR873 1g C/S Ring Standard, 0.468% C, 0.0109% S 454g 碳硫标样
501-505 SAAR874 1g C/S Ring Standard, 0.723% C, 0.022% S 454g 碳硫标样
501-506 SAAR875 1g C/S Ring Standard, 0.829% C, 0.0067% S 454g 碳硫标样