This standard specifies the terms and definitions, product classification, technical requirements, spinnability indicators, test methods, inspection rules, marking, packaging, transportation and storage requirements for Baicao modified viscose fiber. This standard is applicable to the natural gloss, semi-matt, and matt conventional textile functional composite viscose produced with viscose pulp and wood pulp as the main raw materials and Baicao as the functional modified material, with a linear density ranging from 1.10dtex to 6.70dtex. Fiber quality grading and acceptance. Viscose fibers for other uses can be used as reference.