NABL test reports for UPS explained: what they prove, how they map to IS-16242 clauses, and what government buyers should verify.
Procurement & GeM
A NABL test report turns a manufacturer's claims into independently verified facts — which is exactly why government and institutional buyers ask for one. But the reports are dense and technical, and most buyers don't know how to read them. This guide explains what a NABL report is, what it proves, and what to check.
What NABL Accreditation Means
NABL (National Accreditation Board for Testing and Calibration Laboratories) accredits laboratories to internationally recognised standards. A test report from a NABL-accredited lab carries weight because the lab itself has been independently assessed for competence — so the results are credible, not self-declared. Paradyne's products are tested in NABL-accredited laboratories.
What the Report Proves for a UPS
A UPS NABL report documents measured performance against the relevant standard — in India, IS-16242 (aligned with the IEC 62040 framework). Typical verified parameters include:
Input and output voltage ranges and regulation.
Output waveform and total harmonic distortion (THD).
Efficiency and overload behaviour.
Transfer characteristics and protection functions.
In other words, it confirms the datasheet is real.
How to Read One
Check the lab is NABL-accredited and the certificate is current.
Match the model on the report to the model being supplied — a report for a different model proves nothing about yours.
Map results to the standard's clauses — confirm each tested parameter meets the IS-16242 requirement.
Note test conditions — load level and temperature affect results (e.g., efficiency at full vs partial load; see kW vs kVA).
Check dates and validity — reports and certifications have currency.
Why Buyers Should Insist on It
For tenders, a NABL report (alongside BIS certification and OEM authorization) is part of the compliance backbone — see GeM rate contracts and bid documents. For any critical purchase, it is your independent assurance that the UPS performs as claimed.
The Takeaway
Don't accept a spec sheet at face value for critical or government procurement — ask for the NABL test report, confirm it matches the model, and check the results against IS-16242. Paradyne supplies full test documentation with its certified range.
See our online UPS specifications, backed by BIS certification and NABL testing.



