The Recycled Claim Standard (RCS) and Global Recycled Standard (GRS) are international, voluntary standards that set requirements for third-party certification of recycled input and chain of custody. The shared goal of the standards is to increase the use of recycled materials. The GRS includes additional criteria for social and environmental processing requirements and chemical restrictions. Global Recycled Standard (GRS) dbramante1928 Costa Rica - Galaxy A37 - Night Black, Cover, Samsung, Galaxy A37, 17 cm (6.7"), Black dbramante1928 Costa Rica - Galaxy A37 - Night Black. Case type: Cover, Brand compatibility: Samsung, Compatibility: Galaxy A37, Maximum screen size: 17 cm (6.7"), Surface coloration: Monochromatic, Product colour: Black