ISO 15985 is actually the equivalent of ASTM D5511 on international (ISO) level. This is a test method which OWS co-developed many years ago and a test we run on a daily basis. It can be used for two purposes: (1) Verifying the biodegradation behavior under anaerobic digestion conditions (2) Verifying the biodegradation behavior under (accelerated) landfill conditions I expect the customer is looking to obtain data on landfill biodegradation, correct? In that case, testing needs to be run at 37°C. 测试是在厌氧条件下，在反应器测试15天相当于填埋场2-4年的状况