GB 1886.374-2024 English PDF (GB1886.374-2024)

This standard applies to food additive cellulose, which is obtained by purifying and mechanically crushing fibrous plant pulp containing α-cellulose as raw material. 2 Chemical name, molecular formula, structural formula, relative molecular mass 2.1 Chemical name Cellulose 2.2 Molecular formula (C6H10O5)n 2.3 Structural formula 2.4 Relative molecular mass (162.14)n (according to the 2018 international relative atomic mass) 3 Technical requirements 3.1 Sensory requirements Sensory requirements shall comply with the provisions of Table 1. GB 1886.374-2024 www.ChineseStandard.net  Buy True-PDF  Auto-delivery. Page 5 of 15 Table 1 -- Sensory requirements Item Requirements Inspection methods Color White Take an appropriate amount of specimen and place it in a white porcelain dish; observe its color and state under natural light State Powder, granules or flakes 3.2 Physical and chemical indicators Physical and chemical indicators shall comply with the provisions of Table 2 Table 2 -- Physical and chemical indicators Item Indicators Inspection methods Cellulose content (calculated as C6H10O5, on a dry basis), w/% 97.0 ~ 102.0 A.4 in Appendix A Loss on drying, w/% ≤ 7.0 GB 5009.3 direct drying method a pH (10% solution) 5.0 ~ 7.5 A.5 in Appendix A Water-soluble matter, w/% ≤ 1.5 A.6 in Appendix A Ash, w/% ≤ 0.3 GB 5009.4 Method 1 b Starch test Determined by test A.7 in Appendix A Lead (Pb)/(mg/kg) ≤ 2.0 GB 5009.12 or GB 5009.75 Total arsenic (calculated as As)/(mg/kg) ≤ 2.0 GB 5009.11 or GB 5009.76 a The drying temperature and time are 105 °C ± 2 °C and 3 h respectively. b Burn to constant weight at 800 °C ± 25 °C. GB 1886.374-2024 www.ChineseStandard.net  Buy True-PDF  Auto-delivery. Page 6 of 15 Appendix A Test method A.1 Safety tips Some reagents used in the test method of this standard are toxic or corrosive. Appropriate safety and health measures shall be taken during operation. If splashed on the skin, rinse with water immediately. In severe cases, treatmen...