T/CNFPIA 3011-2020 Trellis oil asphalt。

Scope

Scope: This document specifies the terms and definitions, technical requirements, sampling, testing methods, inspection rules, packaging, marking, transportation and storage, and safety of tall oil pitch. This document applies to tall oil pitch products obtained by distilling tall oil from pine wood, as well as the de-sterolized tall oil pitch products obtained after extracting phytosterols (campesterol) from tall oil pitch. Main technical content: Terms and definitions. The following terms and definitions apply to this document: 3.1 Tall oil: A yellow-black viscous liquid with an unpleasant odor, produced as a by-product during the alkali method (sulfate method) for pulp production from pine wood. Its main components include resin acids and fatty acids, also known as tall oil, floating oil, tar oil, etc. 3.2 Tall oil pitch: A product obtained after extracting fatty acids and resin acids from tall oil. Its main components include low-boiling alcohols, ether compounds, sterols (esterified sterols), fatty acids, and a small amount of resin acids, also known as tall oil resin, tar oil pitch, floating oil pitch, and tar oil pitch. 3.3 De-sterolized tall oil pitch: A product obtained after extracting phytosterols (campesterol) from tall oil pitch. T/CNFPIA 3011—2020 24 Technical requirements The product technical specifications shall comply with the requirements in Table 1. Table 1 Technical indicator items Tall oil pitch De-sterolized tall oil pitch Appearance Black-brown paste or solid, without free water Acid value/mg/g 30.0–95.0 Viscosity/mPa·s (90°C) ≤ 1000 Viscosity/mPa·s (130°C) ≤ — 600 Sterol content (GC method) ≥ 10.0 — 5 Sampling 5.1 Batch division When the raw materials and production processes remain unchanged, the products collected from 0 to 24 hours on the same day constitute one batch, or the products placed in the same storage tank constitute one batch; when the raw materials and production processes change, t

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