| 项目 | 
 3N海绵钛  | 
 国标0A-3级  | 
 单位  | 
 检测方法  | 
| 
 总纯度  | 
 ≥99.9  | 
 ≥99.8-99.6  | 
 %?[wt]  | 
 -  | 
| 
 Fe  | 
 ≤0.02  | 
 0.03  | 
 %?[wt]  | 
 GDMS  | 
| 
 Si  | 
 ≤0.01  | 
 0.01  | 
 %?[wt]  | 
 GDMS  | 
| 
 Mn  | 
 ≤0.005  | 
 0.01  | 
 %?[wt]  | 
 GDMS  | 
| 
 Mg  | 
 ≤0.01  | 
 0.01  | 
 %?[wt]  | 
 GDMS  | 
| 
 Ni  | 
 ≤0.01  | 
 0.01  | 
 %?[wt]  | 
 GDMS  | 
| 
 Cr  | 
 ≤0.01  | 
 0.01  | 
 %?[wt]  | 
 GDMS  | 
| 
 Sn  | 
 ≤0.005  | 
 -  | 
 %?[wt]  | 
 GDMS  | 
| 
 Pb  | 
 ≤0.001  | 
 -  | 
 %?[wt]  | 
 GDMS  | 
| 
 As  | 
 ≤0.005  | 
 -  | 
 %?[wt]  | 
 GDMS  | 
| 
 Al  | 
 ≤0.005  | 
 -  | 
 %?[wt]  | 
 GDMS  | 
| 
 Cu  | 
 ≤0.005  | 
 -  | 
 %?[wt]  | 
 GDMS  | 
| 
 O  | 
 ≤0.05  | 
 0.05  | 
 %?[wt]  | 
 LECO  | 
| 
 N  | 
 ≤0.01  | 
 0.01  | 
 %?[wt]  | 
 LECO  | 
| 
 H  | 
 ≤0.003  | 
 0.003  | 
 %?[wt]  | 
 LECO  | 
| 
 其它总和  | 
 ≤0.02  | 
 0.02  | 
 %?[wt]  | 
 LECO  |