ISO 15985 is actually the equivalent of ASTM D5511 on international(ISO) level. This is a test method which OWS co-developed manyyears ago and a test we run on a daily basis. It can be used fortwo purposes:
Verifyingthe biodegradation behavior under anaerobic digestionconditions
Verifyingthe biodegradation behavior under (accelerated) landfillconditions
I expectthe customer is looking to obtain data on landfill biodegradation,correct? In that case, testing needs to be run at 37°C.