Table 5.

Summary of ASTM and ISO standards for plastic degradation in compost.

Standard	Name	Scope
ASTM D5338:15	Standard test method for determining aerobic biodegradation of plastic materials under controlled composting conditions, incorporating thermophilic temperatures	Determination of the ultimate aerobic biodegradability
ISO 14855-1:2012	Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions—method by analysis of evolved carbon dioxide—Part 1: general method
ISO 14855-2:2018	determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions—method by analysis of evolved carbon dioxide—Part 2: gravimetric measurement of carbon dioxide evolved in a laboratory-scale test
ISO 16929:2021	Determination of the degree of disintegration of plastic materials under defined composting conditions in a pilot-scale test	Determination of the disintegration degree of plastic materials in composting
ISO 20200:2015	Plastics—determination of the degree of disintegration of plastic materials under simulated composting conditions in a laboratory-scale test
ASTM D6400-21	Standard specification for labeling of plastics designed to be aerobically composted in municipal or industrial facilities	Establishes the requirements for identifying plastics and products made from plastics that compost satisfactorily in industrial and municipal aerobic composting facilities. Includes biodegradation, disintegration, and environmental safety testing requirements and criteria
ISO 17088:2021	Plastics—organic recycling—specifications for compostable plastics