RS ISO 24511: 2007 ACTIVITIES RELATING TO DRINKING WATER AND WASTEWATER SERVICES — GUIDELINES FOR THE MANAGEMENT OF WASTEWATER UTILITIES AND FOR THE ASSESSMENT OF WASTEWATER SERVICES
RS ISO 18593: 2018 MICROBIOLOGY OF FOOD AND ANIMAL FEEDING STUFFS — HORIZONTAL METHODS FOR SAMPLING TECHNIQUES FROM SURFACES USING CONTACT PLATES AND SWABS