00714nam a2200181 4500 20260608202917.0 260224s1997 dcu Bibliorato API Recommended Practice 500 Recommended practice for classification of locations for electrical installations at petroleum facilities classified as class I, division 1 and division 2. 500. 2nd ed. API Recommended Practice 500. Washington American Petroleum Institute, API 1997 16/04/2008 ; 16/04/2008 LIBRO Normalización 106 Normas API 109 American Petroleum Institute, API 105 167776 167776 0 0 0 0 235595 COBAAB COBAAB Bibliorato 2026-03-05 200042528 0 Bibliorato 200042528 2026-03-05 14:47:13 2026-03-05 NORMA