T/CI 118-2022 Filter paper

Scope

Scope: This document specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of oil filter paper. This document applies to the manufacture of oil filter paper used for filtering edible oil, lubricating oil, hydraulic oil, and other oils. Main technical content: 5. Technical requirements 5.1 Appearance and dimensions 5.1.1 The surface of the paper should be flat, without holes, cracks, sand, fiber shedding, delamination, or other paper defects. 5.1.2 The dimensions are generally 600 mm × 600 mm, with a size deviation of no more than ±3 mm. The paper can also be produced according to customer contract requirements. 5.1.3 The skew should not exceed 3 mm. 5.2 Technical indicators The technical indicators of oil filter paper shall comply with Table 1. Table 1 Technical indicators Industrial oil filter paper Food oil filter paper Quantity/(g/m2) 270±15 270±15 Thickness/mm 0.57~0.62 0.57~0.62 Dry tear strength/kPa ≥390 ≥390 Wet tear strength/kPa ≥220 ≥220 Water drainage time/s 25~45 25~45 Maximum pore size/μm ≤35 ≤35 pH value of water extract 6.0~8.0 6.0~8.0 D65 brightness/% ≥80.0 ≥80.0 Delivery moisture content/% 7±3 7±3 Fluorescent substances (wavelength 254nm and 365nm) — Negative Dustiness/(particles/m2) ≤≥ 1.0 mm2 1.2 mm2~1.5 mm2 2020 ≥1.5 mm2~2.0 mm2 55 ≥2.0 mm2 No presence Health indicators Heavy metals (calculated as Pb)/(mg/kg) ≤—5.0 Arsenic (calculated as As)/(mg/kg) ≤—1.0 Microorganisms Coliform bacteria/(CFU/100g) ≤—30 Pathogenic bacteria (Salmonella, Shigella, Staphylococcus aureus, and Hemolytic Streptococcus) — Not detected

Development Information

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