STNY-108 Pesticide freeze-thaw stability tester
STNY-108 pesticide freeze-thaw stability tester is designed and
manufactured according to the specifications of NYT 2989-2016
pesticide registration products. For the freeze-thaw stability test
of microencapsulated liquid formulations, imported components are
used for the compressor, heating section, and power control
section, ensuring high quality and performance. The temperature
difference at each point inside the freeze-thaw box during full
load operation shall not exceed 1 ℃. Automatic control, real-time
dynamic display of data curves, automatic storage of experimental
data, and automatic recovery function for unexpected termination of
experiments.
Microcapsule liquid formulations should undergo freeze-thaw
stability tests. The purpose of the experiment is to ensure the
integrity of the capsule when the temperature changes, in order to
ensure the complete release of the active ingredient. The
conditions for the freeze-thaw stability test are to perform 4
cycles between (-10 ± 2) ℃ and (20 ± 2) ℃, with each cycle lasting
18 hours of freezing and 6 hours of melting.
1. The qualified requirements for the freeze-thaw stability of
microencapsulated suspension (CS) and microencapsulated suspension
suspension (ZC) are: the content of free active ingredients after
storage, acidity or pH range, wet screening test, suspension rate,
spontaneous dispersibility, dumping ability, etc. should meet the
product specifications;
2. The qualified requirements for the freeze-thaw stability of
Microcapsule Suspension Water Emulsion (ZW) and Microcapsule
Suspension Suspension Emulsion (ZE) are: the content of free active
ingredients after storage, acidity or pH range, wet screening test,
dispersion stability, pour stability, etc. should meet the product
specifications.
Functional Features:
● Cooling method: French Taikang fully enclosed air-cooled;
● Output method: Supports USB interface connection to a mobile USB
flash drive to export historical curves, historical data, and alarm
records. The data exported from the USB flash drive can be viewed,
printed, and recorded using PC upper computer software
● Operation mode: Fixed value, program operation can be selected
● Control mode: PLC main module, temp sensor module, communication
cable, Ethernet/USB extension, accessory package
● Interface function: The interface device supports micro printers
Technical parameter:
| Display mode | 7-inch touch screen display |
| Effective volume | 400 * 500 * 500mm |
| Dimensions | 900 * 1000 * 1500mm |
| Temp range | -20℃～+80℃ |
| Heating rate | 3℃/min |
| Cooling rate | 0.7～1 ℃/min |
| Cycle times | 4 times (arbitrarily set) |
| Freezing time | 18 hours (arbitrarily set) |
| Melting time | 6 hours (arbitrarily set) |
| Temp fluctuation | ≤± 0.5 ℃ |
| Temp uniformity | ≤ 2 ℃ |
| Temp deviation | ≤± 2 ℃ |
| Operating power | ≈ 3.0KW |
| Net weight | 150KG |
Note: The appearance pictures, size,volume and the weight of the
instrument are for reference only. If there are any updates to the
instrument, there may be slight changes without prior notice.
Packing list
| Note | Name | Quantity | Unit | Note |
| 1 | Freeze-thaw stability tester main unit | 1 | Unit | |
| 2 | Support frame | 2 | Piece | |
| 3 | Fuse tube | 4 | Piece | |
| 4 | Power cord | 1 | Root | |
| 5 | Instrument manual | 1 | Copy | |
| 6 | Warranty and Certificate of Conformity | 1 | Copy | |
Shandong Shengtai Instrument Co., Ltd. provides the following
quality assurance for the instruments sold to you:
----The provided instrument materials are brand new, meet national
quality standards, and have a manufacturer's certificate of
conformity;
----The materials and main components provided meet the technical
requirements specified in the technical documentation;
----The overall quality assurance period of the equipment is one
year (excluding normal wear and tear of vulnerable parts).
----We are responsible for free maintenance of any instrument
quality issues that occur during the warranty period. Due to
equipment malfunction caused by the user's responsibility, we are
responsible for repairing and charging reasonable fees.
----Lifetime discounted supply of parts for equipment, and lifetime
maintenance and repair of the entire machine.
----After the expiration of the warranty period, if the user needs
maintenance and technical services, we will only charge a cost fee.
