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Water Vapor Transmittance Tester(Weight method)

Water Vapor Transmittance Tester (Weight method)

Model: UT2097H-6, ISO 2528, ASTM E96, ASTM D1653, TAPPI T464

Water vapor transmittance tester is a set of industrial, efficient and intelligent test system, which is suitable for the determination of water vapor transmittance of plastic film, composite film, medical, construction and other materials. Through the determination of water vapor transmittance, the technical index of products such as packaging materials can be achieved.


Principles

The test principle of permeable cup weighing method is adopted. At a certain temperature, a specific humidity difference is formed on both sides of the sample, and the water vapor enters the dry side through the sample in the permeable cup

The water vapor transmittance and other parameters of the sample can be obtained by the change of the weight of the moisture-permeating cup with time.

General introduction

Water vapor transmittance tester is a set of industrial, efficient and intelligent test system, which is suitable for the determination of water vapor transmittance of plastic film, composite film, medical, construction and other materials. Through the determination of water vapor transmittance, the technical index of products such as packaging materials can be achieved.


Principles

The test principle of permeable cup weighing method is adopted. At a certain temperature, a specific humidity difference is formed on both sides of the sample, and the water vapor enters the dry side through the sample in the permeable cup

The water vapor transmittance and other parameters of the sample can be obtained by the change of the weight of the moisture-permeating cup with time.


Standards

GB 1037, GB/T16928, ASTM E96, ASTM D1653, TAPPI T464, ISO 2528, YY/T0148-2017, DIN 53122-1, JIS Z0208, YBB 00092003, GB17146, ISO 12572


Key Features

  • Features
  • Application
  • Test Principle:
  • Standard

Based on the cup method testing principle, it is a professional system for testing the water vapor transmission rate (WVTR) of film samples, capable of detecting water vapor permeation as low as 0.1g/m²·24h; the configured high-resolution weighing sensor provides excellent system sensitivity while ensuring high accuracy.

Wide range, high precision, automatic temperature and humidity control, easy to achieve non-standard testing;

The standard purge speed ensures the constant humidity difference between inside and outside the permeable cup;

The system automatically clears zero before weighing to ensure the accuracy of each weighing;

The system adopts cylinder lifting mechanical junction design and intermittent weighing measurement method, which effectively reduces the system error;

Quick access temperature and humidity verification jack for quick calibration;

Provide two fast calibration methods of standard film and standard weight to ensure the accuracy and versatility of test data;

Precision mechanical design not only ensures the ultra-high precision of the system, but also greatly improves the detection efficiency;

6 permeable cups can be independently tested, the test process interferes with each other, and the test results are independently displayed;

Large size touch screen friendly man-machine effect, easy user operation and fast learning;

Support multi-format storage of test data, convenient data import and export;

Support convenient historical data query, comparison, classification and printing and other functions;


Thin filmAll kinds of plastic film, plastic composite film, paper plastic   composite film, co-extruded film, aluminized film, aluminum foil composite   film, glass fiber aluminum foil paper composite film and so on.
sheetWater vapor transmittance test of materials.
Paper, cardboardWater vapor transmittance test of PP sheet, PVC sheet, PVDC sheet,   metal foil, film, silicon sheet and other sheet materials.
Artificial skinTest of water vapor transmission rate of cigarette aluminized paper,   paper aluminum-plastic (Tetra Pak) and other composite sheets, paper and   paperboard.
Medical supplies and   accessoriesArtificial skin needs a certain degree of water permeability to ensure   that it has good respiratory performance after implantation in humans or   animals, and this system can be used for testing.
Textiles, non-woven   fabricsAll kinds of plastic film, plastic composite film, paper plastic   composite film, co-extruded film, aluminized film, aluminum foil composite   film, glass fiber aluminum foil paper composite film and so on.
Solar backplaneWater vapor transmittance test of materials.
LCD screen filmWater vapor transmittance test of PP sheet, PVC sheet, PVDC sheet,   metal foil, film, silicon sheet and other sheet materials.
Paint filmTest of water vapor transmission rate of cigarette aluminized paper,   paper aluminum-plastic (Tetra Pak) and other composite sheets, paper and   paperboard.
cosmeticsArtificial skin needs a certain degree of water permeability to ensure   that it has good respiratory performance after implantation in humans or   animals, and this system can be used for testing.
Biodegradable filmAll kinds of plastic film, plastic composite film, paper plastic   composite film, co-extruded film, aluminized film, aluminum foil composite   film, glass fiber aluminum foil paper composite film and so on.


The test principle of permeable cup weighing method is adopted. At a certain temperature, a specific humidity difference is formed on both sides of the sample, and the water vapor enters the dry side through the sample in the permeable cup

The water vapor transmittance and other parameters of the sample can be obtained by the change of the weight of the moisture-permeating cup with time.


ASTM E96, 

ASTM D1653, 

TAPPI T464, 

ISO 2528, 

ISO 12572, 

YY/T0148-2017, DIN 53122-1, JIS Z0208, YBB 00092003, GB17146, GB 1037, GB/T16928, 

Main technical specification

Measurement RangeWeight Reduction Method: 0.1~10,000 g/㎡·24h
Sample Quantity1-6 pieces (data independently recorded)
Testing Accuracy0.01 g/m2·24h
System Resolution0.0001 g
Temperature Control Range15°C (Standard) 5°C -95°C (Customizable)
Temperature Control Accuracy±0.1°C (Standard)
Humidity Control Range

Weight Reduction Method: 90%RH~70%RH 

Weight Gain Method: 10%RH~98%RH (National standard requirement 38°C 90%RH) 

The definition of humidity refers to the relative humidity on both sides of the film, that is, 

the weight reduction method is the humidity of the test cup 100%RH- the   humidity of the test chamber (10%-30%RH). 

The weight gain method is the humidity of the test chamber (10%RH~98%RH) - the humidity of the test cup is 0%RH 


When the temperature is not the same, the humidity range has changed, as follows: (the following   humidity customers must provide dry air source, otherwise affect the humidity generation) 

Temperature 15°C -40°C humidity 10% Rh-98% RH; 

Temperature 45 ° C  Humidity 10%-90%RH

Temperature 50°C Humidity 10%-80%RH; 

Temperature 55 ° C Humidity 10%-70%RH

Humidity Control Accuracy±1%RH
Purge Wind Speed0.5~2.5 m/s (Non-standard optional)
Sample Thickness25.4 mm  Other thickness requirements can be customized to  ≤3 mm
Test Area33 cm² (optional)
Sample SizeΦ74 mm (optional)
Test Chamber Volume45 L
Testing ModeWeight   Reduction and Weight Gain Method
Gas Source Pressure0.6 MPa
Power Supply220VAC 50Hz
Dimensions60 mm (L) × 480 mm (W) × 525 mm (H)
Net Weight70 kg


Main Accessories

Tester host1   set
Computer1   set
Test software1   set
Communication cable1   set
Sampler1   set
Nitrogen cylinder precision pressure reducing valve1   set
Vacuum seal grease1   set
Monitor1   set
Printer1   set
Documents (Manual, packing list, certificate)
Optional accessories: Container test accessories and container temperature control device Note: Air source and distilled water (user provided) equipment appearance picture standard equipment appearance, customized equipment appearance may vary.


Standard

EN 14509 Test Methods of Self-supporting double skin metal faced insulating roofing sandwich panel

EN 14509 specifies factory-made self-supporting double-skin metal-faced insulating sandwich panels for roofs, external walls, internal walls/ceilings.  Mechanical property tests include shear strength and modulus, compressive strength or stress, shear strength under long-term load, tensile strength, bending bearing capacity, and wrinkle pressure.

ISO 17555 BOPP films biaxial stretch testing methods

ISO 17555 applies to packaging-grade BOPP films containing ≥95% polypropylene resin; usable as single-layer film or laminates paired with other plastic substrates. The test stipulated in ISO 17555 mainly include, tensile strength & strain at break, Dimensional change on heating (thermal shrinkage), Coefficient of water vapour transmission, Haze, Wetting tension etc., 

ISO 15988 Biaxial stretch PET films test methods details

ISO 15988 specifies requirements for biaxially oriented transparent PET (BOPET) films, mainly used for packaging, either alone or as a laminated layer with other films. The main test stipualted in this standard include tensile strength and strain, Dimensional change on heating, Oxygen transmission coefficient, Water vapour transmission coefficient, Haze, Wetting tension, thickness etc., 

ISO 15987 Biaxially oriented nylon films tensile expansion testing methods

ISO 15987 specifies classification, mandatory visual, dimensional, mechanical, barrier, optical, surface energy, and food contact safety requirements for transparent BOPA film, supplied in roll form, either used standalone or laminated with PE, CPP, PET, aluminium foil for multi-layer packaging structures. The test stipulated in ISO 15987 mainly include, tensile strength & tensile strain at break, Oxygen transmission coefficient, Dimensional change on heating, Haze, Wetting tension etc., 

JIS Z1707 Test methods of plastic films for food packaging

JIS Z1707 General rules of plastic films for food packaging

JIS Z1707 unifies universal technical requirements for single-layer and multi-layer plastic films (<250 μm thickness) directly contacting food for food packaging. Not include laminated films containing paper or metal foil as structural layers.The test stilupated in this standard is mainly include: Tensile test, Heat-seal strength, Puncture strength, Static / kinetic friction, Impact strength, Water vapor transmission rate, Oxygen transmission rate, Heat resistance, Wetting tension, Haze, Surface roughness, Anti-fog properties, Shrinkage etc., 

Frequently Asked Questions

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Beijing United Test Co., Ltd.