T/BJMI 0001-2023 Microelectrical water cut milling fluid
T/BJMI 0001-2023 Microelectrical water cut milling fluid
Basic Information
Scope
Main technical contents: 1. Appearance: Technical requirements: no layering, no sedimentation, and a uniform transparent liquid. 2. pH value: Technical requirements: 7–9. 3. Anti-foaming property/ml/10 min: Technical requirements: ≤ 2. 4. Surface tension/(mN/m): Technical requirements: ≤ 40. 5. Corrosion test (55°C ± 2°C): - Level 1 gray cast iron, Grade A: Technical requirements: pass the 24-hour test. - Pure copper, Grade B: Technical requirements: pass the 8-hour test. - LY12 aluminum, Grade B: Technical requirements: pass the 8-hour test. 6. Rust prevention test: - Single sheet: Technical requirements: pass the 24-hour test. - Stacked sheets: Technical requirements: pass the 4-hour test. 7. Adaptability to machine tool paint: No impact. 8. NO2 concentration/(g/L): Technical requirements: ≥ 0.1. If NO2 is detected, the toxicity shall be determined according to GB 13690-2009, Section 4.2. 9. Antibacterial performance: Technical requirements: antibacterial inhibition.