NABL Accredited · Pharmaceutical Water Testing

Water System Validation for Pharma India | WFI Testing | NABL

Pharmaceutical water system validation and WFI testing from an NABL-accredited laboratory in India. IQ/OQ/PQ validation, routine monitoring, and water quality analysis.

Pharmaceutical water is the most widely used raw material in drug manufacturing — its quality directly affects product safety and regulatory compliance. Auriga Research provides NABL-accredited water system validation and testing services for Purified Water (PW), Highly Purified Water (HPW), and Water for Injection (WFI) systems, ensuring your water meets pharmacopoeial specifications and cGMP requirements at every point of use.

Our water system validation services cover all three qualification phases: Installation Qualification (IQ) verifying system construction against design specifications, Operational Qualification (OQ) confirming system operation within defined parameters, and Performance Qualification (PQ) with intensive sampling protocols that establish baseline water quality, system capability, and alert/action limits. We test for conductivity, TOC, pH, microbial count, bacterial endotoxins, nitrates, heavy metals, and all parameters required by IP, USP, EP, and WHO monographs.

Beyond validation, we support routine monitoring programmes with scheduled sample testing, trend analysis, and out-of-specification investigation support. Our laboratory provides rapid turnaround for water samples, enabling timely release decisions and proactive system maintenance.

Water System Validation Capabilities

  • IQ/OQ/PQ validation for Purified Water, HPW, and WFI systems
  • Conductivity and TOC testing per pharmacopoeial specifications
  • Bacterial endotoxin testing for WFI systems (0.25 EU/mL limit)
  • Total aerobic microbial count and objectionable organism testing
  • Chemical parameter testing — pH, nitrates, heavy metals, chlorides
  • Alert and action limit establishment from validation sampling data
  • Routine monitoring programme design and execution
  • Out-of-specification investigation and CAPA support
  • Trend analysis and annual product quality review data packages

Turnaround Time

Chemical Parameters: 3-5 business days
Microbiological Parameters: 5-7 business days
Endotoxin Testing: 3-5 business days
Full Validation Project: 4-12 weeks

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Frequently Asked Questions — Water System Validation

What is pharmaceutical water system validation?
Pharmaceutical water system validation is the documented process of demonstrating that a water purification and distribution system consistently produces water meeting predefined quality specifications. It covers Purified Water (PW), Highly Purified Water (HPW), and Water for Injection (WFI) systems. Validation involves three phases: Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) with intensive sampling over defined periods to establish system capability and control limits.
What parameters are tested in pharmaceutical water quality?
Pharmaceutical water testing covers conductivity, total organic carbon (TOC), pH, microbial count (total aerobic microbial count), bacterial endotoxins (for WFI), nitrates, heavy metals, and total dissolved solids. WFI has stricter limits than Purified Water, with an endotoxin limit of 0.25 EU/mL. Testing follows pharmacopoeial monographs from IP, USP, EP, and WHO guidelines. Routine monitoring includes point-of-use sampling and trend analysis.
What is the difference between Purified Water and WFI?
Purified Water (PW) is produced by distillation, ion exchange, reverse osmosis, or other suitable methods and meets specifications for conductivity, TOC, and microbial limits. Water for Injection (WFI) meets all Purified Water specifications plus an additional bacterial endotoxin limit of 0.25 EU/mL. WFI is mandatory for parenteral product manufacturing, rinsing of parenteral product contact surfaces, and preparation of parenteral solutions. WFI systems require more stringent design, operation, and monitoring.
What is the turnaround time for water system validation?
Individual water sample testing at Auriga Research is completed within 3-5 business days for chemical parameters and 5-7 business days for microbiological parameters. Complete water system validation projects (IQ/OQ/PQ with intensive sampling phases) typically span 4-12 weeks depending on system complexity and sampling frequency. We provide both individual sample testing and full validation project management.
How often should pharmaceutical water systems be monitored?
Routine monitoring frequency depends on the water grade and system maturity. During Phase 3 (PQ) validation, daily sampling at all use points is typical for 4-8 weeks. Post-validation routine monitoring typically involves weekly or bi-weekly sampling at rotating use points, with continuous online monitoring of conductivity and TOC at critical points. Alert and action limits derived from validation data guide the monitoring programme and trigger investigation when exceeded.

Need Water System Validation or WFI Testing?

NABL-accredited pharmaceutical water testing. IQ/OQ/PQ validation, routine monitoring, and rapid sample turnaround for water quality compliance.

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