div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Ludlum Measurements Inc - Certificate of Calibration for Ludlum Measurements Inc certifies that the above instrument has been calibrated by standards traceable to the National src=https:reader030fdocumentsusreader030viewer20220408185e626e9dd4715770f21906f8html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Ludlum Measurements Inc - Certificate of Calibration for Ludlum Measurements Inc certifies that the above instrument has been calibrated by standards traceable to the National src=https:reader030fdocumentsusreader030viewer20220408185e626e9dd4715770f21906f8html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: Ludlum Measurements Inc - Certificate of Calibration for Ludlum Measurements Inc certifies that the above instrument has been calibrated by standards traceable to the National src=https:reader030fdocumentsusreader030viewer20220408185e626e9dd4715770f21906f8html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 4button div class=trans-image amp-img class=trans-thumb alt=Page 4: Ludlum Measurements Inc - Certificate of Calibration for Ludlum Measurements Inc certifies that the above instrument has been calibrated by standards traceable to the National src=https:reader030fdocumentsusreader030viewer20220408185e626e9dd4715770f21906f8html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv