Water Vapor Permeability Tester W301

W301 Water Vapor Permeability Tester is based on the gravimetric determination method and can be used to test the water vapor transmission rate of plastic films, composite films, sheets, and other materials.

Product Introduction

The W301 Water Vapor Permeability Tester is based on the gravimetric determination method and can be used to test the water vapor transmission rate of plastic films, composite films, sheets, and other materials used in the packaging, medical, and construction industries.

Product Features

  • 7-inch color touchscreen with graphical user interface (GUI).
  • Equipped with a high precision weighing system, enhancing system sensitivity and stability.
  • This instrument is designed and manufactured according to the gravimetric method and meets the requirements of ASTM E96.
  • The new generation circular-structure test chamber design ensures a more uniform distribution of temperature and humidity.
  • The periodic weighing method and automatic zeroing before each measurement ensure the accuracy and consistency of test data.
  • Designed with an electric cylinder lifting structure and smoother running.
  • A wide range and high precision of automatic temperature and humidity control support various test conditions.
  • Innovative circulating dehumidification systems effectively prevent humidity gradients, ensuring accuracy.
  • Adjustable air velocity prevents water vapor from condensing on the test dishes, maintaining a constant humidity difference between the inside and outside of the test dishes.
  • The automatic self-calibrating system provides accurate measurements, eliminating the need for time-consuming and error-prone manual intervention, and promoting high performance and compliance.
  • A reference film for fast calibration ensures accurate and universal test data (optional).
  • The instrument is embedded with SAICHENG's latest operating software, featuring a user-friendly interface, intelligent data processing, strict user management, and secure data storage.
  • Equipped with micro-printer and standard USB interface.

Test Principle

Using the gravimetric determination method, the tester creates a constant humidity difference between the two sides of the test specimen at a specified temperature. Water vapor permeates through the specimen and moves to the dry side. By measuring the weight changes of the test dish over time, the water vapor transmission rate and other related parameters can be determined.

Test Standards

This test instrument conforms to many national and international standards:

ASTM E96, ASTM D1653, ISO 2528, TAPPI T464, DIN 53122-1, JIS Z0208, GB/T 1037, GB/T 16928, YBB 00092003

Applications

This instrument is applicable to the determination of water vapor transmission rate of:

Basic Applications

Films
Including plastic films, plastic composite films, paper-plastic composite films, geomembranes coextruded films, aluminized films, aluminum foils, aluminum foil composite films, and many others

Sheeting
Including engineering plastics, rubber, and building materials, e.g. PP, PVC, and PVDC

Paper and Paperboard
Including paper and paper board, e.g. aluminum foil paper for cigarette packages and Tetra Pak materials

Textiles and Nonwovens
Including textiles and non-woven materials, e.g. waterproof breathable fabric, non-woven fabric for diapers and hygienic products

Technical Specifications

Items Specifications
Test Range 0.1 ~ 10,000 g/m2·24h (Standard)
Resolution 0.0001 g
Number of Specimen 1 PCS
Temperature Range Ambient ~ 55°C (Standard)
Temperature Accuracy ±0.1°C
Humidity Range 10%RH ~ 50%RH (Relative humidity)
Humidity Accuracy ±1%RH
Air Velocity 0.5 ~ 2.5 m/s (Customization is available)
Test Area 33.18 cm2
Sample Thickness ≤ 3 mm (Customization is available)
Sample Size Φ72 mm
Port Size Ф6 mmPU tubing
Instrument Dimension 450 mm (L) × 500 mm (W) × 550 mm (H)
Power Supply 120VAC 60Hz / 220VAC 50Hz
(can be changed to local requirement)
Net Weight 42 kg

Configurations

Standard Configurations: Instrument, Micro Printer, Professional Software, Communication Cable, Test Dishes, Desiccant Device, Round Sample Cutter, Quantitative Dropper, Gloves

Optional Parts: Reference Film, Desiccant Container, 4A Molecular Sieve

Note: 1. The gas supply port of the instrument is Φ6 mm PU Tubing;
2. Customers will need to prepare for gas supply and distilled water.

Please Note: Jinan Saicheng is always dedicated to the innovation and improvement of product performance and function. Therefore, technical specifications are subject to change without further notice. Jinan Saicheng reserves the rights of final interpretation and revision.
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