Water Vapor Barrier Testers for Barrier Materials

Product Description

Product Features

Professional

This instrument is based on the cup method, and is professionally applicable to the water vapor transmission rate test of film specimens. It is equipped with high resolution sensor, whose test resolution is 0.0001g. The sensor also provides excellent test sensitivity.

• Both water method and desiccant method can be used
• Wide range and high-precision of automatic temperature and humidity control to support various combinations of non-standard test conditions
• Standard air velocity enables constant humidity difference between two sides of test dishes
• Automatic reset before weighing ensures accurate weighing data
• Gas cylinder lifting structure design and periodically weighing method to reduce system errors
• Convenient fast-access calibration ports for temperature and humidity
• Reference film or standard weight for fast and accurate calibration

High Efficiency

W3/062 system adopts the precision design of round dish rack which is equipped with 6 test dishes and supports 6 different specimens to test individually at one operation. It can be also connected with 9 satellite bases together to accomplish up to 60 tests at the same time.

• Precision design with high test efficiency and ultra-high system accuracy
• 6 distinct or equivalent specimens can be tested individually with independent test results at one operation
• The system can be easily connected to a maximum of 10 instruments to accomplish up to 60 tests at the same time

Intelligent

The instrument is equipped with the latest operating software, with user-friendly operating interface and intelligent data management functions. It also supports LystemTM Lab Data Sharing System, which ensures uniform management of test results and test reports.

• Based on the user-friendly Windows operating interface for easy operation
• Saves test data in different formats for convenient data transfer
• Intelligent historical data searching, comparing, analyzing and printing functions
• Supports LystemTM Lab Data Sharing System for uniform and systematic management of test results and test reports

Principle

Under a certain test temperature, a constant humidity difference is generated between two sides of the test specimen. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish in different time, water vapor transmission rate and other parameters can be obtained.

Standards

This test instrument conforms to the following standards:
ISO 2528, GB 1037, GB/T 16928, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208, 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 Paper Board 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
Extended Applications
Artificial Skin Artificial skin has to meet standard requirements for water vapor transmission rate to ensure better breath performance. This instrument can be used to test  water vapor permeability of artificial skin
Medical Products and Accessories Including plasters, aseptic wound protecting films, face masks and scar sticks
Solar Back-Sheets Including solar back-sheets
LCD Monitor Films Including LCD monitor films
Paint Films Test water vapor permeability of various sorts of paint films
Cosmetics Test water vapor permeability of cosmetics
Biodegradable Films Test water vapor permeability of various sorts of biodegradable films, e.g. starch-based packaging films

Technical Specifications

Specifications	Film Test
Test Range	0.110,000 g/m224h (Water Method) 0.12,500 g/m224h (Desiccant Method)
Number of Specimens	16 with independent test results
Accuracy	0.01 g/m224h
Resolution	0.001 g (Customization Available)
Temperature Range	15C55C (standard)
Temperature Accuracy	0.1C(standard)
Humidity Range	Water Method: 90%RH 70%RH Note1
	Desiccant Method: 10%RH98%RH Note2
Humidity Accuracy	1%RH
Air Velocity	0.52.5 m/s (customization available)
Specimen Thickness	3 mm (customization is available for other thickness)
Test Area	33 cm2
Specimen Size	I74 mm
Test Chamber Size	45 L
Gas Supply	Air
Gas Supply Pressure	0.6 MPa
Port Size	I6 mm PU tubing
Instrument Dimension	660 mm (L) x 580 mm (W) x 580 mm (H)
Power Supply	220VAC 50Hz / 120VAC 60Hz
Net Weight	80 kg

Note1: Herein the "Humidity means the humidity difference between the two sides of the film specimen. The humidity in the test chamber is 10%30%RH accordingly.

Note2: Herein the "Humidity means the humidity difference between the two sides of the film specimen. The humidity in the test chamber is 10%RH-98%RH when the temperature is 15 to 40 C, 10%RH-90%RH when the temperature is 45 C, 10%RH-80%RH when the temperature is 50 C, 10%RH-70%RH when the temperature is 55 C.

Configurations

Standard Configurations

Instrument, Professional Software, Test Dishes, Desiccant Tube, Humidity Generator, Calibration Weight, Communication Cable, Round Sample Cutter and Valve Set

Optional Parts

Satellite Base, Reference Film, Air compressor and Desiccant

Note

1. The gas supply port of the instrument is I6 mm PU tubing;
2. Customers will need to prepare for gas supply and distilled water.

Accurate Multi-Method Testing

Featuring both gravimetric (cup method) and electrolytic sensor methods, this instrument enables comprehensive analysis of water vapor barrier properties across a broad spectrum of materials. Test parameters including humidity, temperature, and speed are programmable, ensuring customizable and repeatable results in accordance with international standards such as ASTM E96 and ISO 2528.


High-Efficiency, Automated Operation

With a fully automatic control system, digital LCD touch display, and memory capacity for up to 1000 results, this tester supports high-throughput workflows (up to 100 tests/day). Simultaneous testing of three specimens increases productivity, while built-in leak detection, real-time monitoring, and automatic calibration enhance data reliability.


Robust Design and Flexible Integration

Crafted from corrosion-resistant stainless steel, the instrument endures demanding laboratory environments. Its benchtop design, 6 mm quick connect gas ports, multiple interface types (RS232, USB), and compatibility with MODBUS and TCP/IP protocols ensure seamless integration into modern laboratory and manufacturing settings.