tc8 sc7 r139 1 2cd https://www.oiml.org/en/tc-sc-pg/committee-drafts/files/tc8-sc7-r139-1-2cd.pdf/view https://www.oiml.org/logo.png tc8 sc7 r139 1 2cd tc8_sc7_r139-1_2cd.pdf — 1.4 MB