Designed to test the drying rate of fabrics, the Chemwest DRTU/HP, employs the Heated Plate Method. Chemwest’s DRTU/HP conforms to specifications developed and copyrighted in 2012 by AATCC Committee RA63.

This method determines the drying rate of a fabric based on the evaporative rate that occurs when the fabric is placed in contact with a prescribed amount of water at the interface of a heated metal plate, held to a constant temperature.1

Our self contained module facilitates dry-rate measurement for all types of fabrics with a consistent repeatable testing process. The Dry Rate Testing Unit / Heated Plate comes pre-programmed for easy operation. Programmable controller and touch screen with USB and Ethernet ports for downloading test results (see full list of specifications). Output results can be programmed as low as one second intervals. Open the lid, place the material on the heat plate, dispense the pre measured amount of water via pipette, close the lid, and download the test results when complete.


  • Determines the drying rate of a fabric
  • Automated test unit for repeatability and consistent testing
  • Compact desktop design
  • Easy to use 6″ touch screen
  • USB & Ethernet ports for data storage and easy transmittal to computer data files
  • Method is applicable to all types of fabrics, including knits, wovens, and non wovens



  • Enclosure ~ White PVC-C (flame retardant and chemical resistant material, in accordance with Factory Mutual (FM) 4910)
  • Door ~ Clear blue PVC
  • 6″ Color Touch Screen
  • PLC controls
  • Adjustable leveling feet
  • UL 508a approved, GFI, Custom Electrical set up per jurisdiction
  • Temperature Recorder with capabilities to take readings every (1) second, data storage, and transmittal to external data file
  • IR Thermocouple probe, temperature range of 15-50 ± 0.1°C
  • Flexible heater, 30.5cm x 30.5cm ± 0.5cm with controller to maintain temperature of 37°C ± 1°C / 98.6°F ± 1°F
  • Oversized adjustable fans
  • Micropipette, adjustable volume, 0.100-1.000 ± 0.003ml
  • Anemometer, Hot wire-type, capable of measuring air flow from 0.5-2.5 ± 0.1m/s
  • Magnet sheet holds specimen in place. Approximate size: 15.0cm long x 4.0 ± 2.0cm Wide x 0.2 ± 0.1cm thick
  • USB to accommodate recording test output to thumb drive device
  • Ethernet port to facilitate direct connection of laptop/desktop
  • Dimensions – 25″L x 16″W x 18.25″H




Consistent repeatable testing mechanismCombined with a consistent laboratory environment, test unit provides a copy exact platform from unit to unit
Integrated designDesign merges critical components to test all fabric types
6″ color touch screen and PLC controlsEase of operation with easy to understand, simple pre programmed process. Capable of measurements @ 1 second intervals, data storage and transmitting
USB and Ethernet portsEasy access to download recorded test results to thumb drive or computer data file
Equipment Cooling FansFans adjust to appropriate test air flow with additional capacity/durability
IR ThermocoupleProbe provides exacting temperature measurement
Bubble level and Leg levelersLevel and solid unit foundation
Compact designEconomical use of space in lab environment


1Reference AATCC Test Method 201-2012, AATCC Technical Manual 2013 pp 401-403. Developed in 2012 by AATCC Committee RA63