How do I calculate CO2 per kg of glassware at an Ambala scientific glassware unit?

LPG burnt in lampworking burners and lehrs × 2.98 kg CO2 per kg of LPG, plus electricity × 0.710, divided by kg of good glassware. Bought borosilicate tubing carries its own footprint in Scope 3, often larger than your direct emissions.

Direct emissions

• LPG cylinders or bulk LPG, in kg, from invoices.
• Oxygen used with LPG adds no CO2 itself.
• Electric lehrs: kWh from sub-meters.

Purchased tubing

Ask the tubing supplier for kg CO2 per kg, or use a glass factor labelled as an estimate.

What Senseible does here

Senseible reads fuel invoices into a dated, fingerprinted record, so each figure shows the quantity, factor and document it came from.

• LPG cylinder CO2
• Is glassware covered by CBAM?
• Glass furnace emissions per tonne

Sources: 2006 IPCC Guidelines, Volume 2: Energy, CEA CO2 Baseline Database, version 21.0

Last reviewed 2026-10-22.