Product Introduction
ZF900 Overall Migration & Non-Volatile Residue Tester features an integrated system design including water bath evaporation, heating and drying, cooling, and constant temperature weighing.It is applied to test overall migration (non‑volatile residue, evaporation residue) in purified water, pharmaceutical packaging materials, food packaging, cigarette tipping paper, chemical reagents, etc.It can also be used for moisture content, loss on drying of solid samples, and determination of total dissolved solids in water quality testing.
Testing Principle
The evaporation cups in the test chamber are heated, cooled and weighed according to the set temperature, repeating the cycle until constant weight is achieved.The test solution is added into the evaporation cup, evaporated via water bath, then dried at 105 °C in the chamber and cooled.After cooling, the evaporation cup is weighed by an analytical balance (readability 0.01 mg) to verify constant weight. The test ends when the constant weight requirement is satisfied.
Applicable Standards
Purified Water:Purified Water in Volume II of Chinese Pharmacopoeia;EP 9.0 WATER, PURIFIED (European Pharmacopoeia)
Pharmaceutical Packaging Materials:Non-volatile residue in extractables test in National Standards for Pharmaceutical Packaging Materials
Food Contact Materials:GB 31604.8‑2021;EN 1186‑3:2002 Method A;Standards and Specifications for Utensils, Containers and Packages, Ministry of Health and Welfare, Korea, Chapter IV 2‑8
Cigarette Tipping Paper:YQ/T 59‑2015
Chemical Reagents:GB/T 9740‑2008; ISO 759
Water Quality Testing:GB 8538‑2016; DZ/T 0064.9‑2021; GB/T 14415‑2007; GB/T 5750.4‑2006
Solid Samples:Extractives, Loss on Drying in Volume IV of Chinese Pharmacopoeia;USP 40‑NF 35 <921> WATER DETERMINATION (United States Pharmacopoeia)
Technical Parameters
| Item | Specification |
|---|---|
| Measuring Range (residue weight) | 0 ~ 80 g |
| Resolution | 0.01 mg |
| Balance Capacity | 0 ~ 220 g |
| Constant Weight Error | 0.3 mg (adjustable) |
| Water Bath Temp. Range | Ambient ~ 100 °C |
| Chamber Temp. Range | Ambient ~ 125 °C |
| Temperature Accuracy | ±0.5 °C |
| Number of Test Positions | 9 (independent data) |
| Evaporation Cup Volume | 100 mL (200 mL customizable) |
| Dimensions | 900 × 880 × 900 mm |
| Power Supply | 220 V, 50 Hz |
| Rated Power | 4 kW |
| Operating System | Windows 10 Professional 64‑bit |
Product Features
1. Integrated hot & cold dual‑chamber control system with upgraded automation
Integrated design for water bath evaporation, drying, cooling, constant weight and solvent recovery, effectively avoiding environmental interference and realizing automatic, efficient and precise testing.
Built‑in water bath with automatic water level detection via sensor, automatic water filling, replenishing and draining, and automatic temperature control.
Multiple safety designs ensure safe operation of water temperature control, water supply and waste liquid discharge.
Advanced international electromagnetic temperature control technology for automatic heating and cooling with accuracy of ±0.5 °C.
2. High‑precision imported balance with isolated protection
Built‑in high‑precision imported balance with 0.01 mg readability; constant weight of 0.3 mg can be achieved in 2 drying cycles.
Balance is installed in a stable protective cover with water circulation layer, fully isolated from the test chamber during evaporation and drying, ensuring stable temperature and humidity during weighing.
Stable and reliable weighing data with excellent repeatability.
3. High‑throughput and wide‑applicability testing
Equipped with 9 independent test positions for high‑throughput testing and improved efficiency.
Suitable for various samples including purified water, organic solvents (n‑hexane, ethanol, acetic acid, chloroform, etc.), solid samples and powders.
4. Efficient cooling and solvent recovery system
Built‑in circulating water cooling pump and large‑capacity cooling water tank for fast and efficient cooling; can cool down to room temperature within 30 minutes.
Equipped with solvent recovery bottle with solvent recovery rate over 90%.
5. Ergonomic design and convenient intelligent operation
Ergonomic and aesthetic design in gray main color with Klein blue trim; visible test chamber window for real‑time observation.
Fully automatic operation: one‑key start, automatic judgment and automatic stop.
Real‑time display of weighing data, temperature and humidity curves; automatic data storage for traceability.
6. Smart OS with global compliance and certification
Self‑developed intelligent operating system with modular icons and user‑friendly interface.
Designed in accordance with GMP computer system validation; flexible parameter settings to meet various standards.
Audit trail function (log trace, test trace) for complete data traceability; multi‑level user authority management.
Customizable test reports, multiple data output formats, electronic signature and online report approval.
Supports both Chinese and English languages for global use.
7. Laboratory intelligent IoT platform
Connectable to IoT platform for networked digital management.
Remote login to IoT platform with authorized access to instrument software for data management and remote fault diagnosis.
Users can download instrument documents, manuals and operation videos on the platform.
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