Customer who requires to get his sample/samples tested in the NTH will enquire at the Reception Counter/Facilitation Center for the concerned Scientist of the relevant area of technology under which the category of the sample falls. The customer will accordingly be intimated by the Receptionist/Facilitation Center about the name of the Incharge of the concerned Laboratory with whom he should meet for the purpose and will also be issued a slip by the Receptionist incorporating therein the name of the concerned Scientist and the name of the customer for meeting the Scientist. Subsequently the customer will meet the Scientist for obtaining the information in details regarding availability of required facilities for the sample he desires to test, necessary test fee, probable time required for completion of the test, etc. If facilities are available the customer will be asked to submit a forwarding letter, in triplicate, addressing the Director/Scientist-in-Charge of the concerned region as under.

The forwarding letter shall contain the details of the sample, details of tests required, relevant Standard Specification, if any, to which tests to be carried out and the number of Demand Draft/Cheque with date and amount. The DD/Cheque is to be drawn in favour of the "Director General, National Test House, Calcutta" on a local bank in case of testing the sample at NTH, Alipore, Kolkata or at NTH, Salt Lake, Kolkata where as the same is required to be drawn in favour of the "Director/Regional Head" as indicated above on a local bank in case of testing the sample at NTH, Mumbai, Chennai, Ghaziabad, Jaipur & Guwahati.