NATIONAL TEST HOUSE-ER (NTH), KOLKATA
NATIONAL TEST HOUSE-ER (NTH), KOLKATA is a BIS-recognised testing laboratory in Kolkata, West Bengal (lab code 5140804), covering 30 approved testing scopes across Cement & Construction Materials, Food, Dairy & Beverages, Footwear, Machinery, Tools & Instruments, Non-Ferrous Metals, PVC & Plastic Products and more. Use the scopes below to match your product, then contact Certko to book testing (indicative lab charges ₹5K – ₹33K).
Products Tested at This Lab
Showing up to 24 of 30 approved testing scopes.
Carbon steel billets, blooms, slabs and bars for forgings
IS 1875 (1992)
Carbon steel cast billet ingots, billets, blooms and slabs for re-rolling into steel for general structural purposes
IS 2830 (2012)
Covered electrodes for manual metal arc welding of carbon and carbon manganese steel
IS 814 (2004)
Galvanized steel strips and sheets (Plain And Corrugated)
IS 277 (2018)
High strength deformed steel bars and wires for concretere inforcement
IS 1786 (2008)
Hot - Rolled bars for the production of bright bars and machined parts for engineering applications specification
IS 7283 (1992)
Mild Steel and Medium Tensile Steel Bars and Hard-Drawn Steel Wire for Concrete Reinforcement: Part 1 Mild Steel and Medium Tensile Steel Bars
IS 432: Part 1 (1982)
Packaged Drinking Water Other than Packaged Natural Mineral Water Specification Third Revision
IS 14543 (2024)
Specification for hard - Drawn steel wire fabric for concrete reinforcement
IS 1566 (1982)
Testing Labs FAQs
Are all labs in this directory approved by BIS?
Yes. The directory is compiled from official BIS laboratory recognition records. Each lab page lists its BIS lab code, recognition validity date and the categories it is approved to test.
How should I choose between labs for my product?
Compare three things: whether the lab's scope covers your exact IS standard, the indicative test charge, and turnaround/location. A nearby lab reduces sample logistics cost; a lab with a bigger scope may bundle multiple standards in one submission.
Are the prices shown final quotes?
No — they are indicative reported charges excluding GST. Final quotes depend on the number of models, varieties and optional tests. Always confirm directly with the laboratory or ask Certko to collect quotes for you.
Can Certko coordinate testing with a lab on my behalf?
Yes. Our consultants handle sample submission, test witnessing, report follow-up and any retesting, as part of the end-to-end certification service. Request a free quote from the contact page.
Trusted by Global Brands
Kamicka
Ang India
Albchrome
Borosil Scientific
SEAH
MapmyIndia
Toshiba
Flipkart
OPPO
Thermadyne
Alborg
GursoygrupKamickaAng IndiaAlbchromeBorosil ScientificSEAHMapmyIndiaToshibaFlipkartOPPOThermadyneAlborgGursoygrupClient stories
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“Certko showed me the exact IS standard, real lab prices and a shortlist of labs near my warehouse in one evening. The certification quote I got through them was 30% below what I had been offered elsewhere.”
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