[F15.1.3.1.4. After 50 and 300 Fuel aging cycles, a measurement of BWC is performed. This measurement consists of loading the canister according to paragraph 5.1.6.3, of Annex 7 to UN/ECE Regulation No 83 until breakthrough. The BWC is recorded. U.K.
Then, the canister(s) shall be purged according the procedure of paragraph 5.1.3.8 of Annex 7 to UN/ECE Regulation No 83.
The canister must be purged between 5 minutes to 1 hour maximum after loading.
The operation of butane loading is repeated 5 times. The BWC is recorded after each butane loading step. The BWC 50 is calculated as the average of the 5 BWC and recorded.
In total, the canister(s) will be aged with 300 fuel aging cycles + 10 butane cycles and considered to be stabilised.]