Annex

United Kingdom

ANNEX VII

Minimum frequency of analyses (Article 35)

Fuel/material Minimum frequency of analyses
Natural gas At least weekly
Other gases, in particular synthesis gas and process gases such as refinery mixed gas, coke oven gas, blast-furnace gas, convertor 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, 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
Untreated solid waste (pure fossil or mixed biomass/fossil) Every 5 000 tonnes of waste and at least four times a year
Liquid waste, pre-treated solid waste Every 10 000 tonnes of waste and at least four times a year
Carbonate minerals (including limestone and dolomite) Every 50 000 tonnes of material and at least four times a year
Clays and shales Amounts of material corresponding to 50 000 tonnes of CO₂ and at least four times a year
Other materials (primary, intermediate and final product) Depending on the type of material and the variation, amounts of material corresponding to 50 000 tonnes of CO₂ and at least four times a year

Fuel/material	Minimum frequency of analyses
Natural gas	At least weekly
Other gases, in particular synthesis gas and process gases such as refinery mixed gas, coke oven gas, blast-furnace gas, convertor 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, 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
Untreated solid waste (pure fossil or mixed biomass/fossil)	Every 5 000 tonnes of waste and at least four times a year
Liquid waste, pre-treated solid waste	Every 10 000 tonnes of waste and at least four times a year
Carbonate minerals (including limestone and dolomite)	Every 50 000 tonnes of material and at least four times a year
Clays and shales	Amounts of material corresponding to 50 000 tonnes of CO₂ and at least four times a year
Other materials (primary, intermediate and final product)	Depending on the type of material and the variation, amounts of material corresponding to 50 000 tonnes of CO₂ and at least four times a year