TTL TTL-30C Ultra Pure Water System
| Brand | TTL |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Regional Classification | Domestic (China) |
| Model | TTL-30C |
| Purified Water Grade | Type I (ASTM D1193-20) |
| Resistivity | 18.2 MΩ·cm @ 25°C |
| Heavy Metals & Soluble Silica | < 0.1 ppb |
| Total Organic Carbon (TOC) | < 10 ppb |
| Endotoxin | < 0.001 EU/mL |
| Microbial Count | < 1 CFU/mL |
| Particulates (>0.22 µm) | < 1 /mL |
| Feed Water | RO water, distilled water or deionized water |
| Flow Rate | 25 L/h |
| Housing Material | Full polymer enclosure (non-metallic, corrosion-resistant) |
| Control System | Microprocessor-based with bilingual (Chinese/English) LCD interface |
| Purification Stages | Dual-stage polishing cartridge system (including final 0.22 µm hydrophilic PES membrane filter and integrated UV lamp at 185/254 nm) |
| Maintenance Features | Real-time consumables monitoring, automatic self-diagnostic at power-on, manual recirculation mode, visual & audible replacement alerts |
Overview
The TTL TTL-30C Ultra Pure Water System is an engineered solution for laboratories requiring continuous, on-demand production of Type I ultrapure water per ASTM D1193-20, ISO 3696:1987, and CLSI EP28-A3c specifications. It operates on a dual-stage post-purification architecture—accepting pre-treated feed water (RO, distilled, or deionized)—and integrates sequential polishing modules: first, a high-capacity mixed-bed ion exchange resin column; second, a terminal ultrafiltration stage combining 185/254 nm dual-wavelength UV oxidation and a 0.22 µm polyethersulfone (PES) membrane filter. This configuration ensures consistent removal of ions, trace organics, nucleases, endotoxins, and sub-micron particulates. The system’s all-polymer housing eliminates metallic leaching risks and supports long-term chemical compatibility in analytical, molecular biology, and trace-element applications.
Key Features
- Microprocessor-controlled operation with real-time parameter display and bilingual (English/Chinese) menu navigation—enabling intuitive setup and audit-ready operational logging.
- Dual-stage purification architecture optimized for reproducible resistivity ≥18.2 MΩ·cm at 25°C, validated via in-line conductivity sensor with temperature compensation (±0.1°C).
- Integrated 185/254 nm UV chamber reducing TOC to <10 ppb through photo-oxidation of non-volatile organics and microbial DNA/RNA degradation.
- Final 0.22 µm hydrophilic PES membrane filter certified for bacterial retention (Bacterial Retention ≥Log 7), installed in sterile, single-use cartridge format to prevent biofilm recontamination.
- Front-access modular design allows full-service access without disassembling plumbing or electronics—reducing mean time to maintenance (MTTM) by >40% versus top-access systems.
- Automated diagnostics: Power-on self-test verifies flow path integrity, UV lamp status, pressure differentials across filters, and sensor calibration flags.
- Consumables management algorithm tracks cumulative volume processed per cartridge and issues both visual (LCD icon) and audible alerts prior to performance drift.
Sample Compatibility & Compliance
The TTL-30C delivers water compliant with critical international standards for high-sensitivity applications: ASTM D1193-20 Type I, ISO 3696 Grade 1, and CLSI EP28-A3c for clinical laboratory use. Its output meets stringent requirements for HPLC mobile phase preparation, ICP-MS diluent blanks, cell culture media formulation, and qPCR reagent preparation. Endotoxin levels (<0.001 EU/mL) and microbial counts (<1 CFU/mL) satisfy USP and EP 2.2.47 specifications for sterile pharmaceutical water. All wetted materials—including tubing, seals, and filter housings—are USP Class VI-certified and extractables-tested per ISO 10993-12. The system supports GLP/GMP documentation workflows via optional RS232/USB data export (CSV log files with timestamps, operator ID, and event tags).
Software & Data Management
While the TTL-30C operates as a standalone unit, its embedded controller logs time-stamped events—including startup/shutdown cycles, UV lamp runtime, total purified volume, and consumables expiration warnings—for up to 12 months. Data export via USB port generates ISO-compliant CSV files compatible with LIMS integration or internal QA review. Optional firmware upgrade enables FDA 21 CFR Part 11–compliant audit trail functionality (electronic signatures, user-level access control, and immutable record retention) when deployed in regulated environments. No cloud connectivity or proprietary software installation is required—ensuring data sovereignty and cybersecurity compliance under ISO/IEC 27001-aligned IT policies.
Applications
- HPLC, UHPLC, and LC-MS mobile phase and blank preparation where low TOC and silica contamination are critical to baseline stability and column longevity.
- ICP-OES and ICP-MS sample dilution and standard preparation—minimizing spectral interferences from Na⁺, K⁺, Ca²⁺, and SiO₂ residues.
- Molecular biology workflows including PCR, RT-qPCR, NGS library prep, and CRISPR reagent formulation—requiring nuclease-free, endotoxin-free water.
- Cell culture media and buffer preparation in academic and biopharma labs adhering to ATCC and ECACC handling guidelines.
- Calibration of trace-level electrochemical sensors (e.g., ion-selective electrodes) and gravimetric standardization procedures.
FAQ
What feed water quality is required to achieve specified ultrapure output?
The TTL-30C requires feed water with resistivity ≥0.2 MΩ·cm (i.e., typical RO permeate). Performance validation assumes inlet TOC <500 ppb and silica <0.1 mg/L. Pre-filtration via activated carbon and 5 µm sediment filter is strongly recommended.
Is the system suitable for GMP-regulated environments?
Yes—when equipped with audit-trail firmware and operated under documented SOPs, it supports 21 CFR Part 11 and EU Annex 11 requirements for water system qualification (IQ/OQ/PQ) and ongoing monitoring.
How often must consumables be replaced?
Under typical lab usage (20 L/day), the dual-stage cartridge set lasts 6–9 months; UV lamp service life is rated at 9,000 hours. Replacement intervals are dynamically adjusted based on actual throughput and feed water quality.
Can the system be integrated into a central water network?
No—the TTL-30C is a point-of-use system designed for benchtop deployment. It does not support looped distribution or booster pump integration.
Does the unit include validation documentation?
Factory test reports (resistivity, TOC, endotoxin, and microbiological verification) are provided with each shipment. IQ/OQ protocol templates and calibration certificates for onboard sensors are available upon request.

