Projects of ISO/TC 281/WG 3

ISO/CD TS 4240-1 2026-09-25 Fine bubble technology - Environmental applications - Part 1: Inspection method using online particle counter in dissolved air flotation (DAF) plant More  Comment 
ISO/CD 20304-1 2026-09-25 Fine bubble technology - Water treatment applications - Part 1: Test method for evaluating ozone fine bubble water generating systems by the decolorization of methylene blue More  Comment 
ISO/CD 4240-6 2026-09-25 Fine bubble technology - Environmental applications - Part 6: Test method for nutrient removal from sediments by washing using fine bubbles More  Comment 
ISO/DIS 4240-5 2026-01-15 Fine bubble technology - Environmental applications - Part 5: Test method for the removal of heavy metals from soil by washing using fine bubbles More  Comment 
ISO/FDIS 21256-2 2025-11-17 Fine bubble technology - Cleaning applications - Part 2: Test method for cleaning machine-oil stained surfaces of machined metal parts More  Comment 
ISO/CD 21256-5 2025-04-10 Fine bubble technology - Cleaning applications - Part 5: Test method for household mould, Rhodotorula, removal using ultrafine bubble water More  Comment 
ISO/AWI 11899-2 2025-03-26 Fine bubble technology - Transportation and dispensing systems - Part 2: Effects of filtration on the concentration of ultrafine bubbles (UFB) in water More  Comment 
ISO/DIS 20304-3 2025-03-14 Fine bubble technology - Water treatment applications - Part 3: Evaluation method for determining ozone dosage in fine bubble ozonation for treating wastewater More  Comment 
ISO 4240-4 2024-09-27 Fine bubble technology - Environmental applications - Part 4: Test method for the removal of oil from soil by washing using fine bubbles More  Comment 
ISO 4240-3 2024-03-01 Fine bubble technology - Environmental applications - Part 3: Test method for on-site evaluation of the performance of algae bloom removal facilities More  Comment 

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