电子级氧化铪:HfO2≥99.9% ,ZrO2/(HfO2+ZrO2)≤0.002%1级氧化铪:HfO2≥99% ,ZrO2/(HfO2+ZrO2)≤0.2%2级氧化铪:HfO2≥99% ,ZrO2/(HfO2+ZrO2)≤0.5%3级氧化铪:HfO2≥98% ,ZrO2/(HfO2+ZrO2)≤1%4级氧化铪:HfO2≥97% ,ZrO2/(HfO2+ZrO2)≤3%
核级氧化锆:ZrO2≥98.5%,HfO2/ (HfO2+ZrO2)≤0.005%