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Version status: Amended | Document consolidation status: Updated to reflect all known changes
Version date: 1 January 2024 - onwards
Version 4 of 4

Annex VII Minimum frequency of analyses (Article 35)

Article 35.

Fuel/material

Minimum frequency of analyses

Natural gas

At least weekly

CO2 transferred

At least weekly

Flue gas for the purpose of Article 43(4)

Every 50 000 tonnes of total CO2, but at least once a month

Other gases, in particular synthesis gas and process gases such as refinery mixed gas, coke oven gas, blast-furnace gas, convertor gas, oilfield and gasfield gas

At least daily - using appropriate procedures at different parts of the day

Fuel oils (for example light, medium, heavy fuel oil, bitumen)

Every 20 000 tonnes of fuel and at least six times a year

Coal, coking coal, coke, petroleum coke, peat

Every 20 000 tonnes of fuel/material and at least six times a year

Other fuels

Every 10 000 tonnes of fuel and at least four times a year