Water System TOC Monitoring Solution
Industry Background & Challenge
Continuous or scheduled TOC monitoring across purified water and WFI distribution loops, built to support routine trending and deviation investigation under USP <643> and <1231>.Pharmaceutical water systems - purified water and water for injection loops in particular - require ongoing monitoring rather than one-off testing, since organic contamination can enter through biofilm formation, resin degradation, or process upsets anywhere along a distribution loop. Sites with only point-of-use grab sampling often struggle to pinpoint where and when a TOC excursion originated, slowing root-cause investigations.
Regulatory Basis
USP <1231> (Water for Pharmaceutical Purposes) describes expectations for ongoing water system monitoring including sampling plan design and trending. USP <643> defines the TOC method and acceptance criteria applied at each monitoring point. Where data is used for system release decisions, it falls under the same 21 CFR Part 11 electronic record requirements as other GMP-critical data.
Our Solutions
Our water system TOC monitoring solution supports multi-point continuous online monitoring across purified water, WFI, and pure steam condensate loops, giving QA a consolidated view of organic carbon trends across the distribution network rather than isolated point readings. The system integrates with SCADA, LIMS and building management system (BMS) for automated trend reporting and deviation alerting. As the manufacturer we provide fully compliant turnkey testing solutions with factory IQ/OQ validation documents, 24/7 global after-sales technical support, and self-developed high-stability oxidation modules that deliver long-term low maintenance and zero consumable replacement within 3 years.
Products
| Model |
TOC TA-2.0 |
TOC TA-3.0 |
TOC TA-3.5 |
TOC TA-5.0 |
| products |
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| Application Scenarios | online/offline/Cleaning validation | Online | Online | Multi-Pioint Monitoring(up to 100 Channels) |
| Measurement Range | 1~1000ppb | 1~1000ppb | 1~1000ppb | 1~1000ppb |
| Conductivity Detection Range | 0.055μS/cm~8000μS/cm | 0.055μS/cm~8000μS/cm | 0.055μS/cm~8000μS/cm | 0.055μS/cm~6000μS/cm |
| Resolution | 0.001mg/L | 0.001mg/L | 0.001mg/L | 0.001mg/L |
| Response Time | ≦5mins | ≦60s | ≦60s | ≦60s |
| Audit Trail | 4-level access control(21 CFR PART 11 compliant),≧3 years storage | 4-level access control(21 CFR PART 11 compliant),≧3 years storage | 4-level access control(21 CFR PART 11 compliant),≧5 years storage | 4-level access control(21 CFR PART 11 compliant),≧3 years storage |
| Weight | 8.5kg | 8.5kg | 8.7kg | 8.4kg |
| Key Advantages | Supports 3-points equential online,offline testing, low installation cost | Single/multi-point time-division monitoring IP-rated housing, meets regulatory requirements | Fast Response,long-term data storage,easy calibration ports | Supports up to 8 independant monitoring points, UV static oxidation principle, high stability |
| sizes | 400*240*270 | 300*210*250 | 300*150*400 | 300*210*250 |
| prices | $ Get Quote from Sales | $ Get Quote from Sales | $ Get Quote from Sales | $ Get Quotes from Sales |
FAQ
Q1: How often should pharmaceutical water systems be monitored for TOC?
A1: Monitoring frequency is determined by a site's validated sampling plan under USP <1231>, typically ranging from continuous online monitoring at critical points to routine periodic grab sampling elsewhere in the loop.
Q2: What causes TOC excursions in a water distribution loop?
A2: Common causes include biofilm formation, resin bed degradation, sanitization gaps, seal or gasket leaching, and cross-contamination from upstream process equipment.
Q3: Is online TOC monitoring required, or is periodic sampling sufficient?
A3: Requirements depend on a site's risk assessment and system design; continuous online monitoring is increasingly favored for WFI loops feeding aseptic processes due to faster excursion detection.
Q4: Can water system TOC data be trended automatically?
A4: Yes, when the analyzer or monitoring network is integrated with a data historian, SCADA, or LIMS system, enabling automated trend charts and out-of-specification alerts.