Product introduction

AUTO W46/1 Infrared Method Water Vapor Transmission Rate Tester is based on the testing principle of the infrared method, designed with reference to ASTM F1249 and other standards, and tests the water vapor transmission rate of samples under set temperature and humidity conditions (quantity), suitable for water vapor transmission rate performance testing of films, sheets, paper, packages and various materials in the fields of food, medicine, medical equipment, daily chemicals, photovoltaic electronics, etc.

Test principle

AUTO W46/1 water vapor transmission rate tester adopts the principle of the infrared method. Fix the pre-treated sample in the middle of the test chamber, and divide the test chamber into a high-humidity side and a low-humidity side, the humidified nitrogen flows on one side of the film, and the dry nitrogen (carrier gas) flows at a fixed flow rate on the other side, in the presence of a humidity gradient, water vapor will permeate from the high-humidity side to the low-humidity side, and the water vapor that passes through the sample is carried to the infrared sensor by the flowing dry nitrogen, and the water vapor transmission rate (and other parameters) of the sample is obtained by the electrical signal output by the sensor.

Standards

ASTM F1249, GB/T 26253, YBB 00092003, BS EN ISO 15106-2, JIS K7129

Technical Parameters

Item	Technical parameters
Test range	0.002~200 g/(m^²·24h)（film and sheet）
Test precision	0.0001 g/(m^²·24h)（film and sheet）
Temperature range	15~45℃（15~60℃ optional）
Temperature accuracy	±0.1℃
Humidity range	(5～90）%RH，100%RH
Humidity accuracy	±2%RH
Test area	50.24 cm^²
Sample size	Φ110 mm
Sample thickness	≤3 mm
Number of test samples	6 Pieces
Carrier gas	99.999% N₂（user provide）
Carrier gas pressure	≥0.1 MPa
Carrier gas flow	5~100 mL/min
Pneumatic pressure	≥0.3 MPa
Gas supply port	1/8 inch metal pipe
Instrument size	460 mm×592 mm×628 mm
Power	1150 W
Power supply	AC 220 V，50 Hz (110V as requested)

Features

Unique cavity design, innovative and convenient to upgrade

The newly upgraded vertical drawer cavity design can be opened and closed with one button, which is convenient for upgrading.

The fully automatic pneumatic clamp clamps the sample, which is convenient and labor-saving, and has excellent sealing performance.

High-precision patented infrared moisture sensor

The high-precision infrared moisture sensor developed and prepared by the top technical team at home and abroad has ultra-high stability and ultra-low failure rate, long service life, high sensitivity, and a resolution of up to 0.0001 g/(m²·24h).

Precise control of temperature and humidity

Temperature control: bidirectional automatic temperature control of the semiconductor refrigeration chip, the temperature control accuracy reaches 0.1 ℃.

Humidity control: dual airflow (dry gas and wet gas) humidity control method, stable humidity, high precision, accurate humidity to ±2%RH.

Meet the test requirements of high throughput and wide range

The instrument is equipped with 6 chambers with independent data, which can meet the needs of high-throughput testing and has high testing efficiency.

The measuring range is 0.002~200 g/(m²·24h), and the measuring range is wide, meeting the testing requirements of high, medium and low barrier materials.

Application field

	Films	Water vapor transmittance test of various plastic films (PP / PET / PE / PVC / BOPP / CPP, etc.), plastic composite films, paper-plastic composite films, metal composite films, co-extrusion films, aluminum films, degradable packaging films (PLA / PBAT / PBS, etc.)
	Sheet	Water vapor transmission rate test of the solid pharmaceutical hard sheet (PP/PVC/PTP, etc.), metal composite sheet, rubber sheet, and other sheet materials
	Paper, cardboard, and their composites	Water vapor transmission rate test of paper and cardboard such as coated paper, silicone paper, aluminum paper for cigarette packs, paper-aluminum-plastic composite sheet, etc.
	Medicinal patch	Water vapor transmission performance test of medical plasters
	Package	Customized fixtures can be extended to packaging parts, such as the water vapor transmission rate of medical polyethylene bottles, sealed bags, medical ointment tubes, infusion hoses, plastic trays, etc.

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Infrared Method Water Vapor Permeability Test