WVTR Tests for Characterization of Full-Starch Biodegradable Film for Packaging

Product Description

Product FeaturesNote1

Infrared sensor

• Equipped with Labthink patented infrared sensor, features a wider test range.
• Designed conforming to ASTM F1249.
• Ultra-long service life, non-consumable type.
• Embedded with over-range warning and automatic protection function.

Accurate data

• Brand new dome design test chamber and 360 air circulation constant temperature technology ensures better temperature stability.
• The test chamber is equipped with a high-precision humidity sensor to monitor and record humidity changes in real time.
• The control of velocity, temperature and relative humidity is automated to realize higher accuracy.

High Efficiency

• Six independent test cells with a standard area of 50cm2, three times the number of test cells in traditional oxygen permeability testing instruments
• Six specimens can be tested simultaneously under the same testing condition, delivering independent test result.
• Within the same time duration, the number of tested specimens is increased from 2 to 6.
• Automatic specimen clamping saves time and effort. The clamping force is consistent, resulting in better air tightness.

Intelligent control

• 12 touch-screen tablet powered by WindowsTM 10 operating system makes the operation simpler and more convenient.
• Automatic test mode requires only inputting temperature and humidity, one click startup, the test is fully automated.
• Intelligent test chamber hood automatically opens and closes with sound and light alert.

Safe and reliable

• System security -- Built-in Labthink's unique high-end industrial computer prevents system failures caused by computer viruses, ensures operational reliability and data storage security.
• Operation safety-- Equipped with various intelligent sensors which give sound and light alert to ensure safe operation.
• Performance reliabilitythe instrument adopts components of global renowned brands, to ensure stable and reliable performance.

Space saving

• The width of the instrument is only 1/3 of the traditional six-cell instrument, saving space for a laboratory.

Powerful functions

• Professional test mode provides flexible and diverse control options to meet various needs of scientific research.
• The system provides oxygen transmission rate curve, oxygen transmission coefficient curve, temperature curve, and humidity curve.
• Ultra-wide test range to meet the barrier test of various materials (customize).
• Ultra-wide temperature range to meet the barrier test under different extreme temperatures (optional).

Test Principle

The pre-conditioned specimen is clamped in the test cell, nitrogen with stable relative humidity flows on one side of the specimen while a stream of dry nitrogen flows on the other side. Due to the humidity difference, water vapor permeates through the specimen from the high humidity side into the low humidity side, and is carried to the infrared sensor by the dry nitrogen flow. By analyzing the electrical signals generated by the water vapor, the sensor calculates the water vapor concentration and the water vapor transmission rate.

Standard

ASTM F1249aISO 15106-2aGB/T 26253aJIS K7129aYBB00092003-2015

Applications

Applications
Films Water vapor transmission rate test of various plastic films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, glass fiber aluminum foil composite films and many others.
Sheets Water vapor transmission rate test of PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheet materials.

Technical Specifications

Table 1: Test Parameters Note2

Parameters/Model		C306H
Test range	g/(m2day) (Standard area 50cm2)	0.02i40
	g/(m2day) (MASK area 5cm2)	0.2i400i14Optionali14
	g/(m2day) (MASK area 1cm2)	1i2000i14Optionali14
Resolution	g/(m2day)	0.0001
Repeatability	g/(m2day)	0.02 or 2%i14take the greater
Test Temperature		15i50i145i60i14Optionali14
Temperature fluctuation		0.15
Test Humidity	%RHi14Within standard temperature rangei14	100%i145i902%
Additional Functions	DataShieldTM note3	Optional
	GMP Computer System requirement	Optional
	CFR21Part11	Optional

Table 2: Technical Specifications

Test Cell	6 Cells
Specimen Size	4.6 x 4.6i1411.7cm11.7cmi14
Specimen Thickness	120 Mili143mmi14
Standard test area	50cm2
Carrier Gas	99.999% High purity nitrogen(Outside of supply scope)
Carrier Gas Pressure	40.6 PSI / 280 kPa
Port Size	1/8 Metal tube
Instrument Dimension	23.6 H x 19.2 W x 25.9 D (60cm 49cm 66cm)
Power Supply	120VAC10% 60Hz / 220VAC10% 50Hzi14one of twoi14
Net Weight	220Lbsi14100kgi14

Table 3: Product Configuration

Standard Configuration	Instrument mainframe, tablet, sampler, vacuum grease, I6 mm PU tubing
Optional Parts	Air compressor, CFR21Part11, GMP Computer System Requirement, DataShieldTM note3
Note	The gas supply port of the instrument is I6 mm PU tubingi14pressure79.7 PSI / 550 kPai14, customers need to prepare gas supply.

Note 1: The described product functions are subject to the specification in "Technical Parameters".
Note 2: The parameters in the table are measured in Labthink laboratory by professional operators according to the requirements and conditions stapulated in laboratory environmental standards.
Note 3: DataShieldTM provides safe and reliable data application support. Multiple Labthink instruments can share one single DataShieldTM system which can be configured as required.

Precision and Compliance

Designed in strict accordance with ASTM E96 and ISO 2528, the WVTR testing equipment delivers highly accurate and repeatable results for full-starch biodegradable film analysis in packaging. The system is equipped with a corrosion-resistant stainless steel chamber and a high-precision humidity sensor, ensuring the reliability of each test while also meeting international regulatory standards for safety and performance.


Technology and Automation

This benchtop equipment incorporates a microprocessor-based automatic control, enabling precise adjustment of temperature (15C-55C), humidity (10-98% RH), and gas flow for superior test customization. Auto-calibration, USB/RS232 connectivity, and multilingual interface options guarantee smooth operation and adaptability to diverse laboratory workflows. Alarm functions and easy data management further enhance productivity.


Applications and Benefits

Ideal for laboratories and manufacturers, the equipment simultaneously measures up to three samples of 80 mm diameter each, streamlining the characterization of biodegradable films. Programmable test parameters and rapid response times (30 min) shorten project turnaround. The intuitive LCD display, automatic data storage, and external export capability ensure comprehensive reporting, supporting both quality assurance and innovative material research.