ISO 9001, ISO 45001 Both by DNV-GL;

ISO 17025 by NABL;

Lab recognition by Central Pollution Control Board (CPCB).

There are about 150 tests under groups – Water & Wastewater, Food & Agriculture products, Petroleum Products, Environmental Pollution, etc.
Please write to us for more details.

We conduct over 2500 tests, but not all are within the scope of NABL accreditation. Therefore, your test report may include tests not covered by NABL, preventing us from displaying the NABL logo on the report. However, you can request our NABL tests scope for more information.

Our business hours are:

• Lab: 9:00 am to 4:00 pm
• Collection: 8:30 am to 5:00 pm
• Sundays are off.
• Additionally, Diwali and other festival days are holidays.

Please call us for any specific day under consideration.

Given that each of your samples lot requires individual testing procedures, including full quality control checks and dedicated resources, our testing services cannot be discounted as wholesale activity.

However, Polytest Laboratories remains committed to providing you with the full value of our testing services. We offer assistance in selecting appropriate test parameters, ensuring accurate results, and delivering prompt service to meet your needs effectively.

We uphold a strict policy against backdating of reports and do not provide them. Once a sample is submitted and registered in our system, it cannot be altered. This policy also aligns strictly with the requirement of NABL under ISO 17025 standard.  This ensures laboratory’s integrity of sample management.

If you’re running late and won’t reach our lab or collection center in time, we understand the urgency. Typically, submitting samples late isn’t ideal due to the risk of sample degradation, and we have specific protocols for accepting samples.

However, if you give us a call well in advance, we can discuss and possibly find a solution for your particular situation. Please note that it’s generally not advisable to deliver samples beyond our working hours to ensure their integrity and accurate testing.

We offer multiple payment options for your convenience, including Cash, Credit/Debit card, E-transfer, or Cheque. Our policy requires payment in full before accepting samples. This approach helps us manage our operations efficiently, especially for short-duration and low-value assignments where managing credit lines becomes challenging.

The charge for sample collection encompasses various costs, including the travel expenses of our sampler, their salary, and overheads. Our samplers are trained professionals who adhere to correct procedures and handling protocols. Offering sample collection as a service extension saves our customers time and effort.

The reason why sampling costs are separate from testing charges is because the cost is incurred per trip, not per sample. This breakdown allows us to accurately account for the resources involved in providing this additional service.

We recommend reaching out to local courier agencies as they are more likely to accept liquid samples based on our experience. Please inquire with them directly. It’s worth noting that larger courier companies like Blue Dart and DHL generally do not accept liquid samples.

Many a time when other labs may submit test reports more quickly than us, it may be due to differences between committed and actual delivery times, as well as the use of non-standard methods or techniques to expedite results.

At Polytest Laboratories, we prioritize delivering test results on or before the promised time, maintaining an impressive on-time delivery record of 97.7%.

We are constantly working to improve and would appreciate it if you could share any data regarding faster deliveries from other labs so we can analyze and learn from these cases.

Generally, the entire test report needs to be seen in its totality since many parameters need to be verified in parity with each other. However, if there is no direct interrelationship of tests, we can definitely provide you a partial report to serve your immediate purpose.

Sending samples through a courier is often more economical and faster than sending a person to collect from distant locations. We recommend contacting us to discuss sample quantity, container and packaging requirements, and sample preservation methods. Additionally, please inquire with your local courier about their ability to transport liquid samples safely when adequately protected.

Absolutely, we can conduct AQM (Air Quality Monitoring) and other on-site monitoring services at distant locations with proper advance planning. We ensure that our equipment and processes are in working condition and provide safe access to sampling ports as needed. To schedule a collection or monitoring service appointment, please send an email to sampling@polytestlabs.net with your detailed requirements. We’ll be happy to assist you further.

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.

Maximum 200 g sample is required for solids testing, whereas for liquids 500 ml quantity is generally sufficient. Please enquire for specific testing.

Main requirements are: Tightly capped, clearly labeled container. Ask us specifically whether glass or plastic and other requirements. Putting the container in a zip-lock plastic bag to protect against accidental leakage. Adequate cushioning for accidental breakage during transit.

Yes, often there are more than one method to test your sample. Please discuss your requirement and application with us before actual sampling so that we can suggest you appropriate method.

At site recording of basic parameters such as TDS, pH, ORP or temperature is possible. It can be done through our trained person collecting the samples from your site. Please discuss with us beforehand.

Polytest is keen in developing various tests and will try to assist you for any analysis by evaluating various possibilities. Please enquire for specific testing.

Ordinarily it is not mandatory to collect samples in the containers obtained from us, so far as they are thoroughly cleaned. However, for the specific tests such as microbiological, etc., only the specially cleaned /conditioned or sterilized containers should be used. This ensures the testing accuracy.

Before working out the techno-commercial offer we need certain input data from you. Please write to us for more details.

Focus of Polytest Laboratories is only to scientifically test the samples and provide correct results. Polytest does not audit processes from where the samples are collected. Such audit needs specialized domain knowledge with clear objectives such as process improvement or material alteration and then giving specific recommendation. It is your consultant who provides you insights by analyzing the test results.

Your consultant is the correct person to suggest recycling possibilities, as he studies the entire situation at site. Generally you can compare the test results with the limits prescribed by Pollution Control Board (as per their Consent) and accordingly utilize treated wastewater for gardening, toilet flushing, car washing and other such non-critical applications. Practically, the wastewater needs to be crystal clear with a BOD value less than 10 mg/l for using it for toilet flushing.

It is generally difficult to know the material contents without first knowing its approximate target constituents and the end application.

As per the availability of resources, Polytest can undertake material testing to support your experiments. However, we may not be able to conduct comprehensive experiments in our lab. Please write to us for specific testing.

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

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.

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

The discharge standards for treated wastewater are specified by Central Pollution Control Board. Please see links here and here as CPCB guidelines.

Conventional RO water is used for general applications like drinking, industrial use, whereas, dialysis water because of is medical application has to meet more stringent norms hence may undergo further purification stages. Otherwise, fundamental treatment strategy for both applications is the same.

Majority of the water borne diseases, such as diarrhea or gastroenteritis are due to bacterial presence in drinking water. Many a time, apparently safe drinking water is found with microbial contamination; hence it is advisable to conduct the microbial analysis on your drinking water.

Behind any such symptomatic complaints there are various causes and not necessarily the one of the water alone. For hair fall and skin irritation, consult your dermatologist for proper treatment and proper advice. However, it is generally believed that it is mainly due to fungal infection transmitted through skin contact or usage of unhygienic swimming pool. Visit the link here for further reading. Polytest laboratories can test water for the presence of fungus and other parameters for your dermatologist.

Yes. You can add a parameter or two if the sample is not disposed off and the quantity is adequate. Generally such parameter addition must be requested within 72 hrs from the date of test report dispatch.

You should go for our abridged 13 parameters potability check drawn from IS:10500 and additionally COD to find out the presence of organic contamination that may cause smell. Additionally, algae can cause bad smell too but is recommended to be checked consequently.

Technically speaking no two samples are alike until they are a subpart of one single sample. There are so many variables involved in the total process from sampling to actual analysis that test results rarely replicate. The best way to cross check the testing integrity is to submit a subsample to various labs.

Please see Technotes.

According to your application and scale of usage there are different water treatment methods employed. Please see TechNotes for an overview.

Yes. There are specific tests suggested by Food Safety and Standards Authority of India (FSSAI) that gives conclusive answer. Polytest Laboratories undertakes testing of various foodstuffs, including milk and milk products for their adulterant identification.

In my test report I see some values highlighted which indicate crossing of the standard range / limit. How can these parameters brought within limit? The purpose of sample testing is to compare the test results with some guiding values / limits. At the time of sample acceptance we ask you specifically about such standard. We highlight those test results which do not comply with the standard range. To understand the significance of exceeding parameter or to offer you the remedy, you will need a consultant. It is beyond scope of testing assignment of Polytest to offer solution, if any, as it needs a thorough study of the process.

Yes, as per Lab-specific ISO 17025, specifying the test method is mandatory. Accordingly Polytest gives the method of testing in your test report. When you study the method further, it provides all the details such as the instruments used, techniques and level of detection and interferences.

It is always better to compare your used oil with virgin (fresh) oil to know how much in reality the degradation has taken place. This will be done only once for the same oil lot. Thereafter it is useful to get the machine oil tested periodically with details such as no. of hours, special conditions etc. The trending of oil degradation can be effectively done this way.

We face respiration problem in our working area, can you guide as to the cause of it? There are way too many variables responsible for suffocation or respirational problems of the building occupants. One of it could be sick building syndrome manifested by lack of fresh air, cramped layouts, lack of sunlight, lack of ventilation, pungent odours generated from various sources, etc. A systematic survey of Indoor Environmental Quality can be undertaken for this.

You will need an agronomist to understand and use the test results of soil sample to advise you how best to manage a particular crop with given parcel of field, and to tailor a solution. Polytest does not offer this service.

This is your choice whether to get print standard values printed. Sometimes it is also useful since you will need them to compare with the obtained results. It will help you to check the efficacy of your process. Statutory submission of test report also warrants that the standard values are printed against the obtained test results.

Simply put only a single sample – collected randomly or systematically – from the source is a grab sample. The composite sampling entails aggregation of many time weighted subsamples taken from the source. E.g. If you take one sample every hour for 12 hours from a water stream and mix them together, it will be a 12-hr composite sample. Composite sampling gives more representative results. For commodities or other types, systematic sampling plans are followed.

Please see Technotes.

Although we have a comprehensive offering of most frequently requested tests, many a time we cannot offer all requested tests. There are various reasons such as our inability of method establishment or standardization at our facility, unavailability or probable unreliability of such tests from our partner subcontractor lab, economic infeasibility, and so on. In short, we regret those test requests that cannot be validated by us. Yes, we can definitely suggest you the labs which we think might be in a position to offer you the test.

The source of domestic water supply is generally the surface or ground water. When rainwater, which is slightly acidic, seeps through limestone rock, some of it gets dissolved. These dissolved minerals give hardness to water. Hard water forms scales onto the vessel and piping surfaces thereby clogging it, make washing ineffective by generating scum out of soap rather than the lather.

The foaming occurs mainly due to contamination by detergents. It is generally harmless and a temporary phenomenon.

You can choose from our Environmental related test groups. Click here