div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: €¦ · Certification to ISO 14644-1 Class 7 and 8 was achieved for the cleanrooms mentioned above 95% Upper Confidence Limit calculations also met the requirement of the Standard src=https:reader030vdocumentsusreader030viewer20220409215e999e8e07b3255ded1286d3html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: €¦ · Certification to ISO 14644-1 Class 7 and 8 was achieved for the cleanrooms mentioned above 95% Upper Confidence Limit calculations also met the requirement of the Standard src=https:reader030vdocumentsusreader030viewer20220409215e999e8e07b3255ded1286d3html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv