00758nam a2200253Ia 4500 200021560 20260309010913.0 251210s9999 xx 000 0 und d Caja 13 American Petroleum Institute, API 105 Bulletin on management of naturally ocurring radioactive materials (NORM) in oil & gas production : API bulletin E2 (BUL E2) Bull E2 : API E2 2nd ed. Washington : American Petroleum Institute, API, 2006. 16/01/03 50 p. NORM 282 NORMA 57162 57162 Normas API 109 Normalización 106 NORM 282