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18.2 Megohm Ultrapure Water System

18.2 Megohm Ultrapure Water System

Key words:

18.2 Megohm Ultrapure Water System

Feed Water Requirements

  • TDS of Inlet Water: <300 mg/L
  • Inlet Water Pressure: 1.0–5.0 kg/cm²

Water Production Flow Rate

  • RO Membrane Water Production Rate: 10 L/H
  • Continuous Draw-off Flow Rate: 1–1.5 L/min
  • Multiple water dispensing modes available: On-demand, Timed, Fixed Volume, Fixed Water Quality

Water Quality Specifications

  • Grade III Pure Water
  • Conductivity: 1–5 μS/cm
  • Compliant with Grade III water standard of GB 6682-92 (China) and ASTM / CAP / NCCLS international standards
  • UPI Grade Ultrapure Water
  • Resistivity: 18.25 MΩ·cm @ 25°C
  • Compliant with Grade I water standard of GB 6682-92 (China) and ASTM / CAP / NCCLS international standards
  • Total Organic Carbon (TOC): <10 ppb
  • Silica Rejection Rate: >99.9%
  • Absorbance (254 nm, 1 cm optical path): ≤0.001
  • Dissolved Silica (Calculated as SiO₂): <0.01 ppm
  • Microorganism: <1 cfu/mL
  • Particles (>0.01 μm): <1 particle/mL
  • Cation Content (Unit: ppb)
  • Iron (Fe) <0.002, Copper (Cu) <0.002, Aluminum (Al) <0.003, Nickel (Ni) <0.001, Zinc (Zn) <0.005, Chromium (Cr) <0.001, Sodium (Na) <0.02, Potassium (K) <0.02
  • Anion Content (Unit: ppb)
  • Chloride (Cl⁻) <0.01, Nitrite (NO₂⁻) <0.02, Nitrate (NO₃⁻) <0.02, Sulfate (SO₄²⁻) <0.01

Electrical & Operating Conditions

  • Power Supply: 220 V / 50 Hz, Rated Power 80 W
  • Operating Ambient Temperature: 5–40 ℃
  • Ambient Humidity: 10%–80% (Non-condensing)

Overall Dimension & Supporting Accessories

  • Overall Dimension: 340 × 550 × 530 mm
  • Standard Accessory: 30 L sterile pure water storage tank

Application Fields

  • Department of Radiology:The Department of Radiology is a comprehensive department integrating imaging diagnosis and interventional therapy. Radiological diagnosis employs X-rays, gamma rays and other radiation to penetrate the human body, rendering images of internal bodily structures and organs on fluorescent screens or radiographic films, enabling evaluation of human anatomical morphology, physiological functions and pathological lesions.

  • Department of Radiation Oncology:Radiation oncology is a localized therapeutic modality that uses ionizing radiation for cancer treatment. Radiation sources include alpha, beta and gamma rays emitted from radioactive isotopes, as well as X-rays, electron beams, proton beams and other particle beams generated by various X-ray therapy units and medical accelerators.

  • Department of Nuclear Medicine:It adopts nuclear science technologies for disease diagnosis and treatment. As an integrated department combining imaging, therapeutic services, scientific research and teaching, it serves as one of the core modalities in modern medicine.

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