Milli-Q IQ 7000, Merck, Germany

Make: Merck
Model: Milli-Q IQ 7000
Facility Status: Working
Category: Water Purification System
Available Equipment/Mode of Use: Ultrapure water production with dispenser arm for lab use.
Facility Management Team and Location: CGC TEC, Council of Scientific and Industrial Research–National Physical Laboratory (CSIR–NPL)
Department: Environmental Sciences & Biomedical Metrology.
LabEmailID:tuhin@nplindia.org,tuhinkumarmandal@gmail.com
Facility Location: Centre for Global Change, QSL Building, TEC
Lab Phone No: 011-45609437
Facility Features, Working Principle, and Specifications:
Features:

• Multi-stage filtration including reverse osmosis and UV treatment.

• Produces Type 1 ultrapure water (resistivity >18 MΩ·cm, TOC <5 ppb).

• Integrated storage tank and dispenser for continuous supply.
  Working Principle:
  Combines reverse osmosis, ion exchange, and UV oxidation to remove ions, organics, and contaminants, ensuring high-purity water for analytical procedures.
  Body Specification:

• Output: Up to several litres per hour.

• Resistivity: >18 MΩ·cm at 25°C.

• TOC level: <5 ppb.
  Applications:

• Dilution of digested road dust samples for ICP-OES analysis.

• Preparation of calibration standards and reagents.

• General lab use in environmental monitoring and quality control.