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Standard Test Method for Determining Aerobic Biodegradation of Plastics Buried in Sandy Marine Sediment under Controlled Laboratory Conditions
| 분야 | 08.03 : 플라스틱 (Ⅲ) |
|---|---|
| 적용범위 | 1.1?This test method determines the biodegradation level of plastic materials exposed to laboratory conditions that simulate the environment found in the sandy tidal zone. 1.2?The tidal zone, that is, the part of the coast affected by the tides and movement of the waves, is the borderline between sea and land, frequently a sandy area that is kept constantly damp by the lapping of the waves. Stony and rocky shorelines also exist. 1.3?Plastic marine debris is frequently washed up in this habitat where it must be removed in order to restore the original landscape. 1.4?It is of interest to know the biodegradation behavior of plastics when exposed to conditions simulating this habitat, because this information can help in predicting the time needed for the biodegradation of the litter. 1.5?Biodegradation is determined by measuring the CO2 evolved by the plastic material when exposed to a sediment kept wet with salt-water in a reactor, to simulate the tidal zone. 1.6?Marine fresh-water habitats (for example, those found in brackish waters and estuaries) are not considered by this standard. 1.7?Reports shall clearly state the percentage of net CO2 generation for both the test and reference samples at the completion of the test. Furthermore, in the laboratory reports, the results shall not be extrapolated beyond the actual duration of the test. Note 1:?There is no known ISO equivalent to this standard. 1.8?Units?The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.9?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.10?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| 국제분류(ICS)코드 | 83.080.01 : 플라스틱 일반 |
| 페이지수 | 5 |
| Edition | 22 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM D7991-22 | Standard Test Method for Determining Aerobic Biodegradation of Plastics Buried in Sandy Marine Sediment under Controlled Laboratory Conditions | 2022-05-01 | 표준 |
| 2 | ASTM D7991-22 REDLINE | Standard Test Method for Determining Aerobic Biodegradation of Plastics Buried in Sandy Marine Sediment under Controlled Laboratory Conditions | 2022-05-01 | 표준 |
| 3 | ASTM D7991-15 | Standard Test Method for Determining Aerobic Biodegradation of Plastics Buried in Sandy Marine Sediment under Controlled Laboratory Conditions | 2015-09-01 | 구판 |
관련상품이 존재하지 않습니다.
ISO 22403:2020 - Plastics — Assessment of the intrinsic biodegradability of materials exposed to marine inocula under mesophilic aerobic laboratory conditions — Test methods and requirements 상세보기
ISO 21701:2019 - Textiles —Test method for accelerated hydrolysis of textile materials and biodegradation under controlled composting conditions of the resulting hydrolysate 상세보기
23/30457327 DC - BS ISO 16623. Plastics. Optimized intertidal seawater and sediment preparation for marine biodegradation testing of plastics. 상세보기
ASTM D6691-24a - Standard Test Method for Determining Aerobic Biodegradation of Plastic Materials in the Marine Environment by a Defined Microbial Consortium or Natural Sea Water Inoculum 상세보기
ASTM D6954-24 - Standard Guide for Exposing and Testing Plastics that Degrade in the Environment by a Combination of Oxidation and Biodegradation 상세보기
IEC TS 63134:2020 - Active assisted living (AAL) use cases 상세보기
IEC 60034-5:2020 RLV - Rotating electrical machines - Part 5: Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification 상세보기
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