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EP 4 396 557 A1

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(43) Date of publication: 10.07.2024 Bulletin 2024/28 (21) Application number: 22865139.4 (22) Date of filing: 30.08.2022

(51) International Patent Classification (IPC):  G01N 15/02(2024.01) G01N 15/00(2024.01) G01N 21/85(2006.01) (52) Cooperative Patent Classification (CPC): G01N 21/85; G01N 15/0227; G01N 2015/0053; G01N 2015/0294; G01N 33/2823; G01N 33/2835; G01N 15/075 (86) International application number: PCT/MY2022/050077 (87) International publication number: WO 2023/033641 (09.03.2023 Gazette 2023/10)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 01.09.2021 MY PI2021005004 (71) Applicant: Petroliam Nasional Berhad (Petronas) 50088 Kuala Lumpur (MY)	(72) Inventors: CHE DAUD, Mohammad Faizal Kuala Lumpur, 50088 (MY) THANT, Maung Maung Myo Kuala Lumpur, 50088 (MY) IQBAL, Asif Kuala Lumpur, 50088 (MY) SHAFFEE, Siti Nur Amira Kuala Lumpur, 50088 (MY) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)