This document specifies the terms and definitions, technical requirements, test methods, inspection specifications, marking, packaging, transportation, storage, etc. of columnar polysilicon for silicon components. The technical requirements include basic requirements, raw materials, chemical composition, physical properties, grain morphology and inclusions. Test methods include chemical composition analysis methods, physical property inspection methods, and grain morphology and inclusion detection methods. Inspection rules include inspection and acceptance, batch grouping, inspection items, arbitration sampling and sample preparation, and determination of inspection results.