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Labthink Instruments Co., Ltd.
Group: Labthink
Catalog excerpts
LabthinkInstruments Co.,L TD 144 Wuyingshan Road, Jinan, China Tel: +86-531-85811021 85864214 Fax: +86-531-85812140 E-mail: trade@labthink.cn Further Improvements on Performance of Weighing Method Water Vapor Transmission Rate Tester Abstract: weighing method is the basic testing method for water vapor transmission rate measurement. After realizing automatic testing of water method, Labthink has made a series of innovative improvements on weighing method water vapor transmission rate tester with higher testing efficiency and better capability for extension. Thus, customized demands for desiccant method testing and inverted water method testing, as well as testing demands for special samples can be met. Key Words: water vapor transmission rate, WVTR, weighing method, testing efficiency, inverted water method Weighing method has long been the basic testing method for water vapor transmission rate testing with the widest applications, which can be subcategorized into desiccant method and water method, etc. The method needs manual operation in its early stage to accomplish the testing; yet, the relevant instruments are low in automation. Since high efficiency and multi-function are the trend for instrumental development, Labthink has, after introducing the first water method water vapor transmission rate tester of the world in 2003, made a series of innovative improvements on weighing method water vapor transmission rate instruments, and introduced Labthink PERME W3/031 Water Vapor Transmission Rate System with strengthened extension capability. Customized demands for desiccant method testing and inverted water method testing, as well as testing demands for special samples can be met. 1. Higher Testing Efficiency Commonly, it’ mistakenly held that weighing method is low in testing efficiency. No matter which method is s applied, there is not much difference in time to realize permeation equilibrium between the sides of the sample. This is because the permeation performance of the sample is definite, and the only influential factor would be the fluctuation of ambient environment. Therefore, what truly influence the testing duration is the testing interval selected by the operator and the permeation equilibrium determined by the operator; of which, the latter is more influential. Generally, instruments of weighing method are in strict accordance with the testing standards in determining permeation equilibrium. In other words, permeation equilibrium would be considered to have been realized when
Open the catalog to page 1
LabthinkInstruments Co.,L TD 144 Wuyingshan Road, Jinan, China Tel: +86-531-85811021 85864214 Fax: +86-531-85812140 E-mail: trade@labthink.cn the changing rate is lower than a certain rate. It’ usually applied by the sensor method instruments with a fixed s testing duration, after which the instrument would be assumed to have achieved equilibrium. In practice, slight changes during permeation process would greatly influence the judgment on proportion mode, and no influence on fixed duration testing mode. However, it’ doubtful for the latter to achieve permeation equilibrium when the s test...
Open the catalog to page 2
LabthinkInstruments Co.,L TD 144 Wuyingshan Road, Jinan, China Tel: +86-531-85811021 85864214 Fax: +86-531-85812140 E-mail: trade@labthink.cn Transmission Rate System; the testing of inverted cup method can be realized with customized cup. At the same time, this instrument can realize water method testing with certain functional expansions. 4. More Powerful Software Permeability test is more sensitive to data produced in process, which sets high requirements for software performance. Otherwise, data accuracy would be seriously affected. Labthink world leading software for permeability...
Open the catalog to page 3All Labthink Instruments Co. catalogs and technical brochures
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C630H Heat Seal Tester3 Pages
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C610M Auto Tensile Tester3 Pages
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Heat seal testing instrument3 Pages
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Paper Board Thickness Tester4 Pages
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Film Thickness Meter4 Pages
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C632B Hot Tack Tester3 Pages
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C632M Hot tack Tester3 Pages
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Tensile Testing Device3 Pages
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Peel Force Tester3 Pages
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C630H Heat Seal Tester3 Pages
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"ELEMENDORF" test device2 Pages
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C680M Tearing Tester2 Pages
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C650H Headspace Gas Analyzer2 Pages
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Box Compression Tester2 Pages
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Peel Force Tester3 Pages
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Pull Off Adhesion Tester3 Pages
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Torque Measuring Devices3 Pages
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Bottle Torque Tester3 Pages
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Packaging Burst Tester3 Pages
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PARAM C640 Thickness Tester4 Pages
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Torque Strength Measuring3 Pages
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Bottle Leak Tester Machine3 Pages
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Oxygen Transmission Tester4 Pages
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C612M Digital Torque Tester3 Pages
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Bag COF Tester3 Pages
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Labthink Headspace Analyzer2 Pages
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Sandwich Bag COF Tester2 Pages
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Textile Thickness Gauge4 Pages
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C680M Tearing Tester2 Pages
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C632B Hot Tack Tester3 Pages
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Labthink Headspace Analyzer2 Pages
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Heat Shrink Tester2 Pages
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Tensile Testing Device3 Pages
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MAP Packaging Burst Tester3 Pages
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MAP Packaging Leak Tester3 Pages
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Lug Cap Torque Tester3 Pages
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Motorized Pull Test Machine3 Pages
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CHY-C2A Thickness Tester2 Pages
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Heat Seal Tester3 Pages
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Roll Tack Tester1 Pages
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Spot Thickness Measurement4 Pages
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Adhesive Tack Tester2 Pages
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Vacuum Bag Leak Tester3 Pages
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Micron Film Thickness Gauge4 Pages
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Spot thickness measurement4 Pages
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Automatic Tube Leak Tester2 Pages
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Burst Test Equipment3 Pages
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Elongation Tester3 Pages
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Box Compression Test Machine2 Pages
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Adhesion Tester for Sticker2 Pages
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Ink Rub Lab Equipment2 Pages
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Friction Testing Machine3 Pages
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Fabric Thickness Measurement4 Pages
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Snack Bag Leak Detector3 Pages
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Carton Stacking Test Machine2 Pages
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Sheet Metal Thickness Gauge4 Pages
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Residual oxygen level tester2 Pages
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Vacuum Tube Leak Tester3 Pages
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leak detector for packaging3 Pages
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bottle torque tester machine3 Pages
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micrometer per ASTM D3744 Pages
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rub tester for wine labels2 Pages
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LAB THICNESS TESTER3 Pages
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Peel tester for 180 Degree5 Pages
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Ball tack tester5 Pages
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table top thickness gauge12 Pages
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Tabletop sealing machine14 Pages
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Film Friction Tester2 Pages
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Head space Oxygen Analyser2 Pages
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90 degree peel test Device3 Pages
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C681M Flex Durability Tester2 Pages
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C650M Headspace Gas Analyzer2 Pages
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C650B Headspace Gas Analyzer2 Pages
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C632B Hot Tack Tester3 Pages
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C630H Heat Seal Tester3 Pages
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C620H Friction3 Pages
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C611M Box Compression Tester2 Pages
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C611B Box Compression Tester2 Pages
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C610M Auto Tensile Tester3 Pages
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C610H Auto Tensile Tester3 Pages
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Handheld Headspace Analyzer2 Pages
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Cap Torque Machine5 Pages
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Oxygen Permeation Analyser3 Pages
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Oxygen Permeation Apparatus3 Pages
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Papier Abrieb-Testmaschine1 Pages
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Bottle Cap Leak Tester4 Pages
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torque meter for PET Bottles3 Pages
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box compression device5 Pages
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BLJ-02 Disk Stripping Tester2 Pages
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RT-01 Rub Tester2 Pages
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MCJ-01A Rub Tester2 Pages
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Floor Slip Resistance Tester5 Pages
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Leak Tester3 Pages
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Consultative Testing Service4 Pages
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BOPP Tape Shear Tester3 Pages
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Bell Jar leak tester2 Pages
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COF testing of Polymer Films2 Pages
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labthink MFY-01 Leak Tester3 Pages
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Heat Sealing Property Tester1 Pages
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Tablet Leak Test Apparatus5 Pages
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Precise Tape Peeling Tester5 Pages
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BOPP Film Thickness Meter2 Pages
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Package Headspace Analyzer5 Pages
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electrical torque meter5 Pages
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tape peeling tester5 Pages
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tensile testing instrument5 Pages
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gas leakage detector LSSD-015 Pages
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XLW (G6) Auto Tensile Tester3 Pages
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XLW (M) Auto Tensile Tester3 Pages
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XLW (B) Auto Tensile Tester2 Pages
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XLW Auto Tensile Tester3 Pages
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CHY-C2 Thickness Tester2 Pages
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CHY-CA Thickness Tester2 Pages
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XLW (PC) Auto Tensile Tester3 Pages
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Plastic Film Thickness Test2 Pages
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Tensile Strength Machine5 Pages
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fogging testing machine5 Pages
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heat sealing testing machine5 Pages
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shrinkage testing machine5 Pages
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torque testing machine5 Pages
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Medical Package leak Tester5 Pages
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Food Package leak Tester5 Pages
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ink rubbing test machine5 Pages
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rolling ball tack tester5 Pages
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Glebo flex tester5 Pages
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hot tack tester5 Pages
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tape peel force tester5 Pages
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Rolling Ball Tester5 Pages
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permeability apparatus5 Pages
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CHY-CB Thickness Tester2 Pages
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Heat Shrinkage Force Tester5 Pages
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XLW (EC) Auto Tensile Tester3 Pages
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gas leakage detector MFY-015 Pages
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materials Flex tester5 Pages
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oxygen headspace analyzer5 Pages
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cap torque testing machine5 Pages
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Lasting Ahesion Tester5 Pages
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Peeling strength tester5 Pages
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Torque Measurement Equipment2 Pages
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Heat Sealing Test machine1 Pages
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FDI-015 Pages
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Leakage Detector5 Pages
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Rolling Ball Adhesion Tester1 Pages
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film thickness gauge5 Pages
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rub testing machine5 Pages
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air leakage tester5 Pages
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vacuum leak detector4 Pages
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plastic film testing machine3 Pages
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carton compression test5 Pages
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plastic cap torque tester5 Pages
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manual torque tester1 Pages
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opening torque tester2 Pages
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Oxygen headspace Analyzer2 Pages
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Permeability Test System2 Pages
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DIN 752012 Pages
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Tensile strength test bench5 Pages
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impact testing equipments2 Pages
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thickness gauge5 Pages
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vacuum leak testing machine2 Pages
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paper thickness measurement5 Pages
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FDT-02 Gelbo Flex Tester5 Pages
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Friction Coefficient Tester5 Pages
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Drop Ball Impact Tester5 Pages
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Dealers wanted1 Pages
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Abrasion Resistance Tester2 Pages
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HST-H3 Heat Sealing Machine1 Pages
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FPT-F1 Friction/ Peel Tester2 Pages
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FT-F1 Fogging Tester2 Pages
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Material Testing Equipment2 Pages
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Packaging Testing2 Pages
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Abrasion Test2 Pages
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Torque Meter2 Pages
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pendulum impact tester2 Pages
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Oxygen Transmission Analyzer2 Pages
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Friction Tester2 Pages
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Leak Detector2 Pages
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Analyzer for MAP2 Pages
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Adhesive Strength Tester1 Pages
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O2 & CO2 Analyzer1 Pages
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Gas Permeability Tester2 Pages
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Heat Thermal Shrink Tester1 Pages
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Paper Air Resistance Tester1 Pages
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Lasting Adhesive Tester2 Pages
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Cap Torque Tester3 Pages
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Lasting Adhesion Tester2 Pages
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Gradient Heat Seal Tester4 Pages
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Head space gas Analysis4 Pages
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Headspace Gas Analyser3 Pages
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Headspace Gas Analyzer3 Pages
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Material Tensile Tester5 Pages
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Ink Rub Tester2 Pages
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medical packaging tester3 Pages
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Hot Tack Tester (Data Sheet)2 Pages
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Heat Sealing tester2 Pages
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Evaporation Residue Tester3 Pages
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Blister Package testing3 Pages
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Gas Permeability Analyzer3 Pages
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Tensile Testing Machine2 Pages
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package integrity tester2 Pages
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Oxygen permeation Analyzer2 Pages
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Drop Impact Tester2 Pages
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Torque tester2 Pages
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Compression Testing Machine2 Pages
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Material Testing Machine3 Pages
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Shrink Film testing2 Pages
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fogging tester2 Pages
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Impact tester2 Pages
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Quality Concerns of Doypacks2 Pages
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Material Testing2 Pages
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laboratory heat sealer2 Pages
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Automated Heat Sealer1 Pages
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analog thickness gauge1 Pages
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Residual Gas Analyzer1 Pages
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digital torque gauge1 Pages
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packaging Industry2 Pages
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Metrology and Test Equipment2 Pages
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Tensile Tester2 Pages
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material moisture monitor2 Pages
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Gas Analyzer2 Pages
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Headspace Gas Analyzer1 Pages
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FRICTION/PEEL TESTER1 Pages
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HOLDING TACK TESTER1 Pages
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ROLLING BALL TESTER1 Pages
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BOX COMPRESSION TESTER1 Pages
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INK RUB TESTER1 Pages
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FOGGING TESTER2 Pages
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Film Shrinkage Tester1 Pages
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Film Pendulum Impact Tester1 Pages
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FALLING DART IMPACT TESTER1 Pages
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THICKNESS TESTER1 Pages
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TOQUE TESTER1 Pages
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Tearing Tester1 Pages
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Gas Permeability Tester1 Pages
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Oxygen Permeability Tester2 Pages
Archived catalogs
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Leak Tester2 Pages
