BS ISO 21072-3:2020 pdf free.Ships and marine technology一Marine environment protection: performance testing of oil skimmers.
BS ISO 21072-3 1 Scope This document specifies a methodology for establishing quantitative performance data for oil skimmers for recovery of oil with high viscosity (above 50 000 cP), so the end user can objectively judge, compare and evaluate the design and performance of different skimmers. The methodology applies to testing in a basin and requires control of oil properties and oil slick characteristics. The method is applicable to all types of skimmers provided that the equipment dimensions are within the physical limitations of the test basin. The test procedure provides full-scale test results for the unit tested, under controlled conditions, and for one or more classes of highly viscous oil. Attention is drawn to the care required when applying the test results to predict a realistic skimmer performance under field conditions. For dedicated/in-built systems, the test procedures outlined in this document are only applicable to the skimming device as such, not to the entire skimming system. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 16165, Ships and marine technology一Marine environment protection一Vocabulary relating to oil spill response.Testing may be carried out at any water temperature, provided that requirements with respect to oil properties are met. The facility shall be able to maintain the water temperature in the test basin at a selected test temperature with maximum variation of +2 °C throughout the testing period. Throughout testing, to minimize any effect on oil flow to the unit or otherwise impede normal operation, there shall be sufficient clearance between the skimmer and the tank walls and any containment device. The side clearance shall at all times be at least 50 % of the extreme width (diameter or equivalentdimension) of the skimmer under test. The clearance between the unit and the tank floor shall be sufficient to not interfere with normal operation of the skimmer. BS ISO 21072-3 pdf download.