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07 Natural and applied sciences
New standards
ISO 4240-3:2026
Fine bubble technology — Environmental applications — Part 3: Test method for on-site evaluation of the performance of algae bloom removal facilities
Scope: This document specifies the test method and procedure to evaluate the algal bloom removal rate using microbubbles in on-site microbubble-based algal-bloom removal facilities. 
The evaluation of the removal rate is conducted by comparing chlorophyll-a concentration before and after treatment using microbubbles. The range of water and weather conditions are served for test because they influence the characteristics of microbubbles and the algal bloom removal rate.
Base documents:
Replaced standards
Drafts
prEN ISO 21043-2
Forensic sciences - Part 2: General requirements for the forensic process, and the recovery and management of items (ISO/DIS 21043-2:2026)
Scope: This document specifies requirements for the forensic process focusing on recognition, recording, collection, transport and storage of items of potential forensic value. It includes requirements for the assessment and examination of scenes but is also applicable to activities that occur within the facility. This document also includes quality requirements.
This document is not applicable to procedures for the recovery of data from digital storage media which is covered by ISO/IEC 27037. However, the storage medium itself can yield additional items of forensic value (e.g. fingerprints or DNA).
Annex D shows the applicability of this document to the forensic process.
Base documents: ISO/DIS 21043-2; prEN ISO 21043-2