This instrument tests the dissolving-out amount of test sample soaked in specified liquid. Applicable to tableware, food container, packaging film, cap sealing rubber pad, painted coating for inner wall of cans, plant fiber container and so on made from polyethylene, polystyrene, polypropylene, perchloroethylene resin, epoxy novolac etc.; also applicable for some chemical reagents.
Working Principle
After test sample soaked in specified liquid, hold an amount of the liquid in evaporating dish, evaporate and dry the dish in high temperature, then weigh the dish; then dry again, and weigh again, repeat this process until the weight is constant; calculate Evaporated Residues according to the measured weight minus the weight of evaporating dish itself. Unit is mg/L.
Standards
GB/T 5009.60-2003, GB/T 5009.64-2003, GB/T 5009.68-2003, GB/T 5009.69-2008, GB/T 5009.203-2003, GB/T 9740-2008
Features
- Only need to manually make sample and put liquid sample in machine’s sample pot; after this, injecting sample, evaporating, drying, weighing, repeating process, constant weight judgment, and calculation are all automatically done by system.
- Evaporation, drying and weighing are all done in machine chamber.
- 8 work stations, each with independent test data; can test 8 samples at the same time.
- LCD display test data.
- Automatic temperature control.
- Heating system is outside test chamber, no high voltage electricity inside chamber, safety ensured.
- Testing is done in closed system, exhaust entering vacuum recycle system, not discharged outside machine.
- Can add sample into sample pot during testing, no need to pause and take out evaporating dish.
- Over temperature alarm, task completion alarm.
- With carrier gas supplied, can make quick test.
- Simple calibration of weight and temperature sensors.
- Professional software, simple interface, easy to use.
- Real time display weight, residue rate, temperature, humidity etc. for each work station.
- Professional test report.
Software Interface
Specifications
| Test range |
0~80g (residue weight) |
|
Test precision |
0.2mg |
|
Resolution |
0.1mg |
|
Temperature range |
80~130℃ |
|
Temperature precision |
±0.2℃ |
|
Heated air circulation speed |
0.2 m/s |
|
Test sample volume |
0~200mL |
|
Gas source |
high purity nitrogen, ≥0.1Mpa |
|
Gas port |
Φ6mm gas pipe |
|
Instrument size |
85×58×82cm |
Configuration
Evaporated Residues Tester, software, communication cable, power cable, evaporating dish 8pcs, 200g weight
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