UNE-EN ISO 9888:1999 WATER QUALITY. EVALUATION OF ULTIMATE AEROBIC BIODEGRADABILITY OF ORGANIC COMPOUNDS IN AQUEOUS MEDIUM. STATIC TEST (ZAHN-WELLENS METHOD). (ISO 9888:1999).
1999UNE-EN ISO 9888:1999 WATER QUALITY. EVALUATION OF ULTIMATE AEROBIC BIODEGRADABILITY OF ORGANIC COMPOUNDS IN AQUEOUS MEDIUM. STATIC TEST (ZAHN-WELLENS METHOD). (ISO 9888:1999).