Bomb Calorimeter Buying Guide: How to Verify ISO 1928 Results

Define the calorific-value workflow

Record whether you need gross calorific value for coal trading, biomass fuel acceptance, SRF or another matrix. Your RFQ should identify ISO 1928, ASTM D5865 or the local method, expected sample mass and daily runs.

Automatic oxygen filling, water dosing and jacket control reduce operator variation, but they do not replace benzoic-acid calibration or bomb inspection.

Verification method

Before routine use, establish heat capacity with the required benzoic-acid reference material, then run a control chart of repeatability and drift. Include blank runs, bomb wash checks and ignition-wire correction in the acceptance protocol.

Procurement checklist

Ask for bomb material and seal specifications, oxygen-pressure limits, calibration records, consumables cost, safety interlocks, raw-data export and service response. Request a witnessed demonstration using a matrix close to your own samples.