Water

Water is life and plays infinite roles in our day-to-day life directly or indirectly.
Water has abundant domestic as well as industrial uses and each application demands specific quality and characteristics of the same.
According to the specific end use of water, certain quality parameters need to be tested to ensure its suitability.
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Boiler water

Maintaining boiler water and feed water quality is very important which impacts boiler’s useful life. If the water is not conditioned, the boiler overheats and runs with a low efficiency.
Unconditioned boiler feed water can contain dissolved salts which form scales on the heat transfer surfaces. Scale deposits drastically reduces the heat transfer leading to tube failure and efficiency loss.
For an effective water treatment programme, boiler water quality needs to be checked from time to time from an inhouse as well as from an outside lab for the results verification.

Typical Test Parameters
  • Bicarbonates
  • Calcium
  • Chlorides
  • Magnesium
  • Potassium
  • Reactive silica
  • Sodium
  • Sulphates
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Construction water

Before starting construction work, each water source should be tested for its suitability.
Water used in mixing and curing of concrete must be free from detrimental parameters such as alkalis, acids, oils, salts, organic materials, vegetative growth or other substances harmful to bricks, stone, concrete or steel.
Generally potable water is considered satisfactory for mixing. Here are a few parameters to be tested to ensure safe concreting and curing.

Test Parameters
  • Acidity
  • Alkalinity
  • Chlorides
  • Fixed residue
  • pH
  • Sulphates
  • Total suspended solids
  • Volatile residue

Cooling tower water

Cooling towers are designed to control process heat. Proper water treatment program is vital for optimum process control and heat transfer ensuring safe operation and extension of equipment life.
For an efficient operation of a cooling tower, three main factors need to be controlled

  • Corrosion
  • Scale Formation
  • Biological Fouling

Even if the water continues to evaporate, the total solids remain behind thereby increasing their concentration. This needs to be meticulously controlled. Algal contamination also needs to be checked from time to time. Unconditioned circulation water can lead to corrosion, scaling or biofouling negatively affecting the heat transfer and failure of the equipment.

Test Parameters
  • Alkalinity
  • Calcium hardness
  • Chlorides
  • Chemical oxygen demand (COD)
  • Conductivity
  • Dissolved oxygen
  • Hardness
  • Iron
  • Legionella
  • Oxidation-reduction potential (ORP)
  • pH
  • Reactive silica
  • Sulphates
  • Sulphide
  • Total dissolved solids
  • Total plate count
  • Total suspended solids
  • Turbidity
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Drinking water

The quality of drinking water varies depending on the source and treatment of the water.
There are many possible sources of contamination. Certain contaminants in water can cause gastrointestinal problems, reproductive issues, and neurological disorders.
The testing of your water supply will reveal any harmful substances in it, as well as any health concerns you may be experiencing. Here are a few important tests that Polytest Laboratories offer serving all the practical purpose.

Test Parameters
  • Alkalinity
  • Aluminium
  • Ammonical nitrogen
  • Anionic detergents
  • Arsenic
  • Barium
  • Boron
  • Bromodichloromethane
  • Bromoform
  • Cadmium
  • Calcium
  • Chloramines
  • Chlorides
  • Chloroform
  • Chromium
  • Coliforms
  • Colour
  • Copper
  • Cyanide
  • Dibromochloromethane
  • E. coli
  • Fluorides
  • Free residual chlorine
  • Hardness
  • Iron
  • Lead
  • Magnesium
  • Manganese
  • Mercury
  • Mineral oil
  • Molybdenum
  • Nickel
  • Nitrates
  • Odour
  • Pesticides
  • pH
  • Phenolic compounds
  • Polychlorinated biphenyls (PCBs)
  • Polynuclear aromatic hydrocarbons (PAHs)
  • Selenium
  • Silver
  • Sulphates
  • Sulphide
  • Taste
  • Total dissolved solids
  • Turbidity
  • Zinc

Haemodialysis water

The quality of dialysis fluids is of vital importance and is often neglected at many renal healthcare centers.
Every week, haemodialysis patients are exposed to hundreds of lit water for the production of dialysis fluids which come into direct contact with the bloodstream. It is, therefore, clearly vital to monitor the chemical and microbiological purity of dialysis water.
As there is always a risk of chemical contamination due to primary pollution of municipal water, whereas the problem of microbiological contamination lies across the stages of entire treatment, distribution and point of use.
Not only the final dialysis water quality but also the quality of water at various stages of purification system needs to be monitored.

Test Parameters
  • Aluminium
  • Arsenic
  • Barium
  • Cadmium
  • Calcium
  • Chromium
  • Coliforms
  • Copper
  • E. coli
  • Fluorides
  • Hardness
  • Lead
  • Magnesium
  • Manganese
  • Mercury
  • Nitrates
  • Potassium
  • Residual chlorine
  • Selenium
  • Silver
  • Sodium
  • Standard plate count
  • Sulphates
  • Total dissolved solids
  • Zinc
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Industrial use water

The water quality required for industries is specific to its applications such as water going into the product as its ingredient and activities such as fabricating, chemical processes, washing, diluting, cooling, or even transporting a product.
Water is also used by smelting industries, petroleum refineries, and industries producing chemical products, food, and paper products

Brewery - Process Water

Water used in Brewery especially conducting the mash or creating the wort should be clean, odourless with moderate alkalinity and hardness.

Test Parameters
  • Alkalinity
  • Coliforms
  • Colour
  • E. coli
  • Free residual chlorine
  • Hardness
  • Iron
  • Nitrates
  • Odour
  • pH
  • Salmonella
  • Sulphates
  • Total dissolved solids
  • Turbidity
Distilled / Demineralized Water

Distilled water is prepared by distillation (boiling and condensing), which eliminates minerals and other impurities such as viruses, bacteria, and organic material.
Demineralization removes cations and anions such as potassium, chlorine, magnesium from water for specific industrial processes. Demineralized water reduces the corrosion rate.
Checking water frequently from the external lab for impurities or contamination helps maintain end product quality standards.

Test Parameters
  • Colour retention of KMnO4
  • Conductivity
  • pH
  • Reactive silica
  • Total solids

Irrigation water

Irrigation is essential for the absorption of nutrient elements by the plants from the soil. The irrigation water dissolves the soil nutrients in a crop field and form a Solution. This nutrients solution is then absorbed by the plant roots for its the development.
Wells, ponds, lakes, canals, tube-wells and dams are the various sources of irrigation water. By testing irrigation water enables us to select types of fertilizers for optimum plant growth while minimizing the risk of discharging pollutants into surface or ground water.

Test Parameters
  • Aluminium
  • Arsenic
  • Boron
  • Cadmium
  • Chromium
  • Cobalt
  • Coliforms
  • Conductivity
  • Copper
  • E. coli
  • Fluorides
  • Hardness
  • Iron
  • Lead
  • Lithium
  • Manganese
  • Molybdenum
  • Mould
  • Nickel
  • pH
  • Residual sodium carbonate
  • Selenium
  • Sodium absorption ratio
  • Staphylococcus aureus
  • Streptococci
  • Total dissolved solids
  • Vanadium
  • Yeast
  • Zinc
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Packaged drinking water

Packaged drinking water is water sourced from potable source which is treated, disinfected, with artificially added minerals and sealed in ready to use bottles. Packaged drinking water by definition is different from mineral water which contains natural minerals.

General parameters
  • Alkalinity
  • Aluminium
  • Anionic surface-active agents
  • Antimony
  • Arsenic
  • Barium
  • Borates
  • Cadmium
  • Calcium
  • Chlorides
  • Chromium
  • Colour
  • Copper
  • Cyanide
  • Fluorides
  • Free residual chlorine
  • Iron
  • Lead
  • Magnesium
  • Manganese
  • Mercury
  • Mineral oil
  • Nickel
  • Nitrates
  • Nitrites
  • Odour
  • Pesticides
  • pH
  • Phenolic compounds
  • Polychlorinated biphenyls (PCBs)
  • Polynuclear aromatic hydrocarbons (PAHs)
  • Selenium
  • Silver
  • Sodium
  • Sulphates
  • Sulphide
  • Taste
  • Total dissolved solids
  • Turbidity
  • Zinc
Microbiological parameters
  • Coliforms
  • E. coli
  • Faecal streptococci
  • Mould
  • Pseudomonas aeruginosa
  • Salmonella
  • Shigella
  • Staphylococcus aureus
  • Sulphite reducing anaerobes
  • Total viable count
  • Vibrio cholerae
  • Vibrio parahaemolyticus
  • Yeast

Packaged natural mineral water

Water obtained and packed at its natural source directly has a natural composition of mineral salts in relative proportions and presence of trace elements.
This water is obtained directly from underground sources protected from pollution risks.
This water is not subjected to any treatment except for mentioned in BIS standards and is packaged close to its emergence of source.
The standard specifies the composition and levels of minerals, microbiology, organoleptic & physical requirements, toxic, radioactive substances and pesticides.
This water is obviously a premium quality product available in the market.

General parameters
  • Alkalinity
  • Anionic surface-active agents
  • Antimony
  • Arsenic
  • Barium
  • Borates
  • Cadmium
  • Calcium
  • Chlorides
  • Chromium
  • Colour
  • Copper
  • Cyanide
  • Fluorides
  • Lead
  • Magnesium
  • Manganese
  • Mercury
  • Mineral oil
  • Nickel
  • Nitrates
  • Nitrites
  • Odour
  • Pesticides
  • pH
  • Phenolic compounds
  • Polychlorinated biphenyls (PCBs)
  • Polynuclear aromatic hydrocarbons (PAHs)
  • Selenium
  • Silver
  • Sodium
  • Sulphates
  • Sulphide
  • Taste
  • Total dissolved solids
  • Turbidity
  • Zinc
Microbiological parameters
  • Coliforms
  • E. coli
  • Faecal streptococci
  • Mould
  • Pseudomonas aeruginosa
  • Salmonella
  • Shigella
  • Staphylococcus aureus
  • Sulphite reducing anaerobes
  • Vibrio cholerae
  • Vibrio parahaemolyticus
  • Yeast
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River, stream & nalla water

In the context of pollution levels of surface water, the quality of the same needs to be controlling by regulating surface runoffs and pollutional discharges, since these water sources are mostly used further for agriculture, drinking, bathing and industrial purposes. CPCB has regulated the end use of surface water according to its quality criteria.

Test Parameters
  • BOD
  • Boron
  • Conductivity
  • Dissolved oxygen
  • Free ammonia
  • pH
  • Sodium absorption ratio
  • Total coliforms

RO water

Reverse Osmosis (RO) systems remove pollutants such as lead, pesticides, fluoride, pharmaceuticals, arsenic and more. With added carbon filter, an RO system can also remove chlorine to improve the taste, odor and appearance of your water.
Also different Industries like Ice making, food Industry, textile, pharmaceuticals, farm Houses, Poultries, Electroplating, etc., extensively use RO water for variety of applications.
RO plants are used to desalinate the sea / brackish water to convert it to drinking level where the natural freshwater sources are absent.

Test Parameters
  • Aluminium
  • Arsenic
  • Barium
  • Cadmium
  • Calcium
  • Chromium
  • Coliforms
  • Copper
  • E. coli
  • Fluorides
  • Hardness
  • Lead
  • Magnesium
  • Manganese
  • Mercury
  • Nitrates
  • Potassium
  • Residual chlorine
  • Selenium
  • Silt density index (SDI)
  • Silver
  • Sodium
  • Standard plate count
  • Sulphates
  • Total dissolved solids
  • Zinc
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Swimming pool water

Pool water quality and sanitation are very important for healthy conditions in swimming pools or recreational ponds. Proper sanitation is needed to maintain the visual clarity of water and to prevent the transmission of infectious waterborne diseases. Sweat, cosmetics, suntan lotion, urine, saliva, faecal matter, body oils and the microorganisms from infected users are the typical contaminants which impact water quality badly.
The complex reactions between disinfectants and water contaminants can produce a mixture of chloramines and other by-products. Most common illnesses are associated with ear, skin rashes and respiratory infections are mainly due to pathogenic contamination.
Timely and thorough testing of feed and pool water ensure the water to be safe or gives idea as to the causes of water being unsafe.

Test Parameters
  • Alkalinity
  • Aluminium
  • Chlorides
  • Coliforms
  • Colour
  • Heavy metals
  • Iron
  • Odour
  • Oxygen absorbed
  • pH
  • Standard plate count
  • Taste
  • Total dissolved solids
  • Total residual chlorine
  • Turbidity

We are leading Laboratory Testing Services For Water in Pune.

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Water Testing Frequently Asked Questions

Can water sample be collected in our container?

Only in case of chemical parameters testing you can collect it in your container. Ensure that the containers are cleaned thoroughly. For bacteriological parameters you need sterilized containers preferably collected from us. You may contact us for further details.

I have only 50ml sample, you have specified 200ml. Can we still test the parameters?

In such a case only a few tests can be performed. Please let us know the tests that are important for you.

Is rainwater suitable for drinking? How can we use it for drinking?

Rainwater may not be used as it is for drinking. There is a possibility of mixing of atmospheric and surface pollutants. Get potability testing done on collected water to decide on whether treatment is needed.

What are the impacts of various water parameters on human body?

Please see the TechNotes section in which you will find compiled significances of parameters for domestic water use