Our verifier wants calibration certificates for our meters. Which ones matter?
The meters whose readings become emissions: your own fuel flow meters, sub-meters, steam meters and the weighbridge. Utility meters belong to the discom or gas company, so their bill is the evidence. In India a weighbridge used for trade should carry a valid Legal Metrology stamp.
What to collect
- Weighbridge verification or stamping certificate.
- Calibration reports for fuel flow meters and sub-meters.
- Steam meter calibration, if used to allocate emissions.
If a meter is out of date
Say so, use the reading with a note, and cross-check against invoices. Get it calibrated before the next period.
Meters you do not own
Discom and gas company meters are checked by them. Keep the bills; a verifier will not ask for their certificates.
What Senseible does here
Senseible keeps every figure linked to its source invoice or bill with a fingerprint, so a verifier can trace a total back to the documents it came from.
Sources: ISO 14064-1, 14064-3 and 14067 (iso.org), GHG Protocol Corporate Standard, Bureau of Energy Efficiency
Last reviewed 2026-10-22.