*A级熔融石英砂99.95%≤SiO2≤99.98%、Fe≤32ppb以内

*AB级熔融石英砂99.85≤SiO2≤99.86%、Fe≤0.02%以内

*C级熔融石英砂99.4%≤SiO2≤99.5%、Fe≤0.05%以内