YS/T 840-2012

This standard specifies the technical requirements and classification of recycled silicon materials, testing methods, inspection rules, as well as packaging, marking, transportation, storage, order forms, etc.
This standard applies to recyclable silicon materials generated during the production, processing, and use processes, with sources including carbon-free multi-crystalline silicon (carbon-free raw materials) used in the production of solar-grade silicon crystals, crystal silicon head and tail materials, edge materials, crucible bottom materials, crystal silicon samples, and primary waste silicon wafers, etc.