This document clearly defines the terms and definitions of recycled pulp, specifies its product classification, requirements, inspection rules, labels, Encasement, transportation, storage and mass certificates, and describes the corresponding test methods in detail. Applicable to recycled pulp as a raw material for papermaking fibers, but does not include waste paper fragments obtained by simple sorting, shearing, packaging, etc. The normative reference documents include GB/T 462, GB/T 740, GB/T 742, GB/T 1539, GB/T 1540, GB/T4688, GB 5085, GB/T 5202, GB/T 5399, GB/T7974, GB/T8170, GB/T 8940.2, GB/T 10739, GB/T1 2162.3, GB18871, GB/T22804, GB/T24323, GB/T 24326, GB/T24327, GB/T24990, GB/T 24991, GB/T24997 and a series of pulp-related standard documents.