Compliance: Drinking Water Testing


Water is one of the basic necessities in order to sustain  a human life. Hence, the social compliance ensures that a factory supplies safe drinking water to its workers. It is mandatory for a factory to get the drinking water tested from a local lab. An example of such an organisation which provides the facility of water testing is ATIRA (Ahmedabad Textile Industry's Research Association).
drinking water
Drinking Water facility in RMG factory

Drinking Water Testing, Image source: www.ndttraininginstitute.in


There are nine basic parameters on which the R O water is tested using IS: 10500:1991 method

  1. pH
    • pH scale
      pH Scale, Image source:www.chinesemedicineliving.com

    • Desirable Limit: 6.5 - 8.5
    • Permissible Limit : No relaxation
    • Possible Effects : Corrosion, Metal taste, Bitter/soda taste, Deposits
  2. Total dissolved solids (TDS)
    • tds
      TDS, Image Source:www.tdsmeter.com

    • Desirable Limit: 500 mg/l
    • Permissible Limit: 2000 mg/l
    • Possible Effects : Scaly sediments, Salty or bitter taste, Staining, Cloudy coloured water
  3. Colour
  4. Color of drinking water, Image source:www.slu.se


    • Desirable Limit: 5 Hz
    • Permissible Limit : 25 Hz
    • Possible Effects : Visible tint
  5. Odour

    • Desirable limit: Unobjectionable
    • Permissible Limit : No relaxation
    • Possible Effects : Rotten egg, Musty, Chemical smell
  6. Total Alkalinity
  7. alkalinity
    Total Alkalinity, Image source: www.h2oforhealth.com
      • Desirable Limit : 200mg/l
      • Permissible Limit : 600mg/l
      • Possible Effects : Scales in hot water system and utensils
    1. Chloride
      1. chloride in drinking water
        Health hazards of chloride, Image source:
        www.mercola.com
      • Desirable Limit : 250 mg/l
      • Permissible Limit : 1000 mg/l
      • Possible Effects : High blood pressure, salty taste, corroded pipes
    2. Sulphate
    3. sulphate
      Sulphate in drinking water, Image source:
      allchemicalandwater.com.au
      • Desirable Limit : 200 mg/l
      • Permissible Limit : 400 mg/l
      • Possible effects : Laxative effect, Bitter, Corossive, Rotten egg smell
    4. Calcium
    5. calcium
      Cloudiness in water, Image source: www.srcity.org
      • Desirable Limit : 75 mg/l
      • Permissible Limit : 200 mg/l
      • Possible Effects : Increased hardness of water,  cerebrovascular disease 
    6. Magnesium
    7. Hardness of water, Image source: byjus.com
      • Desirable Limit : 30 mg/l
      • Permissible Limit: 100 mg/l
      • Possible Effects : Increased hardness of water,  cerebrovascular disease 
    For analysis, 5 litres of sample is required and it takes 5-6 working days to get the sample tested. Labs usually charge around 2000 INR for the whole test.  Drinking water testing facility is available in almost all labs in major cities. 
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