National Accreditation Board for Testing and Calibration Laboratories

(A Constituent Board of Quality Council of India)

Government Block / Sub Divisional Level Drinking Water Testing Laboratories

NABL Government Block Level/ Sub Divisional Drinking Water Testing Laboratories Program
S. No. Discipline – Group – Sub Group Test Parameter Range Measurement Technique CRM / RM
1 CHEMICAL - WATER - DRINKING WATER pH 2 to 12 pH Meter Buffer pH 4,7 and 10
2 CHEMICAL - WATER - DRINKING WATER Turbidity 0.5 NTU to 100 NTU Turbidity Meter Turbidity Standard
3 CHEMICAL - WATER - DRINKING WATER Total Dissolved Solids 10 mg/L to 10000 mg/L TDS Meter KCL
4 CHEMICAL - WATER - DRINKING WATER Chloride (as Cl) 10 mg/L to 5000 mg/L Titration Sodium Chloride
5 CHEMICAL - WATER - DRINKING WATER Total Hardness (as CaCO3) 10 mg/L to 5000 mg/L Titration Calcium standard
6 CHEMICAL - WATER - DRINKING WATER Total Alkalinity (as CaCO3) 5 mg/L to 2000 mg/L Titration Sodium Carbonate
7 CHEMICAL - WATER - DRINKING WATER Calcium (as Ca) 5 mg/L to 2000 mg/L Titration Calcium Standard
8 CHEMICAL - WATER - DRINKING WATER Magnesium (as Mg) 5 mg/L to 1000 mg/L Calculation -
9 CHEMICAL - WATER - DRINKING WATER Colour 1 Hu to 100 Hu Visual comparison Potassium chloroplatinate
10 CHEMICAL - WATER - DRINKING WATER Odour Qualitative Observation -
11 CHEMICAL - WATER - DRINKING WATER Taste Qualitative Observation -
12 CHEMICAL - WATER - DRINKING WATER Iron 0.1 mg/L to 50 mg/L Colorimeter/Spectrophotometer Iron standard
13 CHEMICAL - WATER - DRINKING WATER Fluoride 0.1 mg/L to 50 mg/L Colorimeter/Spectrophotometer/Ion meter Fluoride standard
14 CHEMICAL - WATER - DRINKING WATER Arsenic 0.009 mg/L to 50 mg/L Colorimeter/Spectrophotometer Arsenic standard
15 CHEMICAL - WATER - DRINKING WATER Sulphate (SO4) 1 mg/L to 1000 mg/L Colorimeter/Spectrophotometer Sulphate standard
16 CHEMICAL - WATER - DRINKING WATER Nitrate (as NO3) 1 mg/L to 50 mg/L Colorimeter/Spectrophotometer Nitrate standard
17 BIOLOGICAL - WATER - DRINKING WATER Total Coliform Qualitative (Absent/Present) Membrane Filtration technique Standard culture from ATCC/ IMTEC/NCIM
18 BIOLOGICAL - WATER - DRINKING WATER E-coli Qualitative (Absent/Present) Membrane Filtration technique Standard culture from ATCC/ IMTEC/NCIM

Equipment

S. No. Discipline Equipment Name In-house/ traceability External/ laboratory name
1 CHEMICAL pH Meter Traceable to SI units using CRM  NA
2 CHEMICAL Balance NA NABL Accredited Calibration Lab
3 CHEMICAL Colour Comparator Traceable to SI units using CRM NA
4 CHEMICAL TDS Meter Traceable to SI units using CRM NA
5 CHEMICAL Turbidity Meter NA NABL Accredited Calibration Lab
6 CHEMICAL Refrigerator NA NABL Accredited Calibration Lab
7 CHEMICAL Wet & Dry Thermometer NA NABL Accredited Calibration Lab
8 CHEMICAL Thermometer (1 °C -100 °C) NA NABL Accredited Calibration Lab
9 CHEMICAL Spectrophotometer Traceable to SI units using CRM NA
10 CHEMICAL Ion Meter Traceable to SI units using CRM NA
11 BIOLOGICAL Biosafety cabinet Manufacturer Certificate Manufacturer Certificate
12 BIOLOGICAL Incubator (35 °C to 37 °C) NA NABL Accredited Calibration Lab
13 BIOLOGICAL Incubator (44 °C to 45 °C) NA NABL Accredited Calibration Lab
14 BIOLOGICAL Water Bath (44 °C to 45 °C) NA NABL Accredited Calibration Lab
15 BIOLOGICAL Autoclave for sterilization NA NABL Accredited Calibration Lab
16 BIOLOGICAL Autoclave for disposal NA NABL Accredited Calibration Lab
17 BIOLOGICAL Colony Counter NA NABL Accredited Calibration Lab
18 BIOLOGICAL Membrane filtration Assembly with vacuum pump NA NA
19 BIOLOGICAL Balance (Separate from Chemical division Balance) NA NABL Accredited Calibration Lab
20 BIOLOGICAL Refrigerator (Separate from Chemical division Refrigerator) NA NABL Accredited Calibration Lab

Refrence Material

S. No. Discipline Reference Material Traceability
1 CHEMICAL pH Buffer Traceable to SI Units
2 CHEMICAL Sodium Carbonate Traceable to SI Units
3 CHEMICAL Sodium Chloride Traceable to SI Units
4 CHEMICAL Calcium Traceable to SI Units
5 CHEMICAL Turbidity Traceable to SI Units
6 CHEMICAL Glass Thermometer NABL Accredited Calibration Lab
7 CHEMICAL Precision Thermometer digital with RTD probe with cable NABL Accredited Calibration Lab
8 CHEMICAL Analytical Weight Box NABL Accredited Calibration Lab
9 CHEMICAL Potassium Dichromate Traceable to SI Units
10 CHEMICAL Nitrate Traceable to SI Units
11 CHEMICAL Fluoride Traceable to SI Units
12 CHEMICAL Sulphate Traceable to SI Units
13 CHEMICAL Iron Traceable to SI Units
14 CHEMICAL Arsenic Traceable to SI Units
15 CHEMICAL Copper Traceable to SI Units
16 BIOLOGICAL Reference Culture - ATCC8739 IMTEC Chandigarh or NCIM Pune