RS ISO 16649-1:2018 MICROBIOLOGY OF FOOD AND ANIMAL FEEDING STUFFS — HORIZONTAL METHOD FOR THE ENUMERATION OF GLUCURONIDASE — POSITIVE ESCHERICHIA COLI — PART 1: COLONY — COUNT TECHNIQUE AT 44 °C USING MEMBRANES AND 5-BROMO-4-CHLORO-3-INDOLYL _D GLUCURONIDE
