T/CSEA 12-2019 Metalworking fluid without boron, sulfur, phosphorus, and chlorine additives

Scope

Scope: This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of metalworking fluids (hereinafter referred to as "metalworking fluids") that do not contain additives of boron, sulfur, phosphorus, or chlorine. This standard applies to metalworking fluids, except for uncontrollable factors such as the introduction of non-target elements in raw materials, production processes, and pipeline transport. Main technical content: Table 1 Technical Requirements for Metalworking Fluids Serial No. Item Quality Indicator L-MA AL-MA BL-MA EL-MA FL-MA GL-MA HH-MA 1 Concentrate Appearance Light yellow to brown Transparent or semi-transparent Uniform oil-like liquid Uniform liquid or paste Uniform powder 2 Storage and Transport Stability No obvious changes 3 Boron Content /(mg/L) ≤50 4 Sulfur Content /(mg/L) ≤20 5 Chlorine Content /(mg/L) ≤20 6 Phosphorus Content /(mg/L) ≤20 7 Diluent Transparency Opaque or semi-transparent Transparent or semi-transparent 8 pH Value 8.0–10.0 9 Antifoaming Property /(mL/10 min) ≤2 10 Surface Tension /(mN/m) ≤40 11 Corrosion Test (55±2)°C, HT300 cast iron, Grade A T3 copper, Grade B 2A12 aluminum, Grade B ≥24 ≥16 ≥16 12 Rust Prevention Test (35±2)°C, HT300 cast iron single sheet, 24 hours HT300 cast iron stacked sheet, 8 hours Pass Pass 13 Stability No precipitation of oil soap No precipitation 14 Permissible Amount of Salt No phase separation 15 Hard Water Adaptability No flocculation or precipitation observed (continued from Table 1) Main technical content: Serial No. Item Quality Indicator L-MA AL-MA BL-MA EL-MA FL-MA GL-MA HH-MA 16 Diluent b Compatibility with machine tool paint Permissible slight loss of luster and discoloration, but no foaming, stickiness, cracking, or pe

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