| Method Code | Method Description | 
		
			| W1 | Enumeration of hetertrophic bacteria by pour plate | 
		
			| W2 | Isolation and confirmation of Salmonella sp (other than Salmonella typhi) from drinking and raw waters and solid samples | 
		
			| W5 | Detection, enumeration and identification of Legionella spp including Legionella pneumophila SG1 and SG2-15 | 
		
			| W7 | Isolation, enumeration and confirmation of Enterococci – membrane filtration technique | 
		
			| W8 | Clostridium perfringens – membrane filtration technique. | 
		
			| W9 | Pseudomonas spp – membrane filtration technique. | 
		
			| W10 | Total coliforms and Escherichia coli – single membrane filtration technique. | 
		
			| W11 | Pseudomonas Aeruginosa – membrane filtration technique. | 
		
			| W18 | Detection of sulphate reducing bacteria in water samples | 
		
			| W19 | Detection of nitrite reducing microorganisms in water samples | 
		
			| W20 | Isolation and enumeration of yeasts and moulds from potable and environmental water samples | 
		
			| W21 | Isolation and enumeration of Staphylococcus aureus from potable and environmental water samples | 
		
			| W24 | Escherichia coli per gram dry weight by membrane filtration | 
		
			| W25 | Escherichia coli in Sludge, Soil and other solids | 
		
			| W30 | Detection and enumeration of Legionella spp including Legionella pneumophila using real-time PCR | 
		
			| W32 | Selected microbiological organisms per gram dry weight by membrane filtration for sludge, soils and other solids | 
		
			| W33 | Identification and enumeration of Enterobacteriaceae from potable and environmental water samples | 
		
			| W36 | Total Viable Count (TVC) at 30°C Laporte specification | 
		
			| W37 | Procedure for Swab Samples | 
		
			| W38 | Total viable count - process and purified waters | 
		
			| W41 | Bacterial & Fungal Identification | 
		
			| W44 | Algae Enumeration | 
		
			| W45 | Chlorophyll ‘A’ | 
		
			| W46 | Zooplankton (including Veligers) Identification and Enumeration | 
		
			| W47 | Biological Examination | 
		
			| W49 | Male-specific (F+) Coliphage | 
		
			| W51 | Stenotrophomonas species | 
		
			| W52 | Acinetobacter baumannii | 
		
			| W54 | Bioaerosols | 
		
			| W57 | Total Coliforms, Faecal Coliforms and Escherichia Coli on Waste Waters |  | 
		
			| W58 | Enterococci | 
		
			| W59 | Clostridium perfringens including Sulphite Reducing Clostridia | 
		
			| W60 | Biological report by microscopy on activated sludge | 
		
			| W61 | Environmental Monitoring Plates and Strips | 
		
			| W62 | Appearance and Qualitative Taste and Odour | 
		
			| CRYM1-M3 | Cryptosporidium and Giardia | 
		
			| MALDI-ToF Confirmation | All Microbiology determinands utilising a culture-based method |