Permeability
influence of material on magnetic flux, gases or liquids as they pass through.
See Also: Magnetic Permeability, Soil
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Drying Time & Permeability
When developing a coating process, it is important to know the exact time it takes for the coating to dry or cure. For multicoat paint systems, having knowledge of the drying time enables the operator to know when any subsequent layers can be applied. There are many stages involved in the coating drying time. Once a coating has been applied, it levels off under gravity, and, as the coating begins to cure, a thin dry film appears on the surface. The coating then continues to dry until, finally, it is totally cured.
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Oxygen Permeability Testers
Oxygen permeability is the ability of a barrier material to oxygen to permeate through it in a specific time. Oxygen permeability may vary with temperature, humidity, pressure and specimen thickness.
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Permeability Tester for Diapers
DRK357B-II
Shandong Drick Instruments Co., Ltd.
The diaper permeability tester is used to determine the absorption speed, re-permeability and permeability of diapers and other products.
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Water Vapour Permeability Tester
TESTEX Testing Equipment Systems Ltd.
Water Vapour Permeability Tester, to determine the resistance of textiles and textile composites (particularly action wear fabrics) to water vapour penetration. Water Vapour Permeability Tester complies with BS 3424/7209, etc.
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Permeability Cells
Flexible Wall Permeameter
The Permeability Cells - Flexible Wall Permeameter for Soil Samples performs permeability tests on normal and contaminated soil samples. The permeability cells are available either in brass for normal use or in stainless steel for contaminated materials. Top caps and pedestals are available for normal or contaminated materials.
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Water Vapor Permeability Tester
QT-WVP
Qualitest Water Vapor Permeability Tester QT-WVP series is used to test the water vapor transmission rate (WVTR) of packaging materials.
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Gas Permeability Tester
QT-GPT
Gas Permeability Tester- QT-GPT series is used to test the gas transmission rate (GTR) of packaging material by differential pressure method.
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Water Vapor Permeability Analyzer
Guangzhou Biaoji Packaging Equipment Co., Ltd.
GBPI Water Vapor Permeability Analyzer used to test the water vapor transmission rate (WVTR) of packaging materials, such as plastic film, composite film, coextrusion film, aluminum-plated film, aluminum foil.
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Frazier Differential Pressure Air Permeability Tester
The Low Pressure Air Permeability Machine was developed by the National Institute of Standards and Technology of measuring the air permeability of textile type materials. and It is the acknowledged standard of the U.S. Government and the U.S. Textile Industry. The second model, High Pressure Air Permeability Machine is produced on the same principle as the Low Pressure Machine, but designed with a much greater versatility for use through its higher attainable airflow and differential pressure. Both models are extremely accurate and reliable, very easy to operate, and nearly maintenance free.
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Water Vapour Permeability Tester
UI-FT16
Water Vapour Permeability Tester (WVP) is applied to test the water vapour permeability of all kinds of leather.
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Geotextile Water Permeability Tester
TG010
TESTEX Testing Equipment Systems Ltd.
Geotextile Water Permeability Tester, to determine the constant-head water flow capacity (water permeability) within the plane of a geotextile or geotextile-related product, is measured under varying normal compressive stresses, typical hydraulic gradients and defined contact surface.
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Vapour Permeability Measurement System
Mass Spectrometer vapour permeability measurement system which works across every gas or group of gasses used in modern engineering. This is important as vapour permeability issues effect many performance and safety critical aspects across the engineering industries.
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Air Permeability Tester
TF164
TESTEX Testing Equipment Systems Ltd.
Auto Air Permeability Tester, is used to determine the air permeability of fabric totally automatically. With its wide measuring range, the air permeability tester is suitable for all kinds of knitted, woven, non-woven, and coated fabrics, paper, film, leather, etc. Air Permeability Tester complies with GB/T5453, ISO 9237, ISO 9073:15 and etc.
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Paper Testing Instruments
Whiteness and chromaciticity tester, whiteness meter, tensile stiffness tester, automatic horizontal tensile tester, automatic horizontal tensile tester, vertical tensile tester, pulp beating (refining) freeness tester, water absorbtion tester, Cobb tester, COBB sample cutter, coefficient of friction tester, electronic bending stiffness tester, paper and cardboard thickness meter, paper and cardboard thickness meter, ink rubber tester, standard strip cutter, softness tester, carton compression tester, paper air permeability tester, internal ply bond tester, puncture strength tester, paper tearing tester, electronic tearing tester, mullen burst tester, crush tester, Bekk smoothness tester, folding endurance tester
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Oxygen Permeability Tester
T-OPT Series
Oxygen Permeability Tester - QT-OPT series is ideal for industrial application laboratory testing of material for Oxygen permeability testing for quality control, research and development.
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400/5A CHEAP SPLIT CORE CAST RESIN CURRENT TRANSFORMER
LZCK310-10
Beijing GFUVE Electronics Co.,Ltd.
LZCK series outdoor waterproof current transformers are applicable for AC power system 35kV and measurement of current of power supply equipment below 10KV also can be used for microcomputer protection. This type of current transformer employs imported silicon steel which with high permeability as magnetic material, has the characteristics of Small magnetic circuit loss and can be split, its semicircular core and secondary windings employ high quality epoxy resin vacuum, casting in plastic-case(ABS or PC) which is flame retardance anti-moisture, stable performance, no maintenance.
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Gas Permeability Tester with Differential Pressure Method
GPT-203
GPT-203 Gas Permeability Tester is based on the differential pressure method and is professionally applicable to the determination of permeance and permeability of plastic films, composite films, high barrier materials, sheeting, metal foils.
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Trace Moisture Analyzer
PPM1
Model PPM1 is a trace moisture analyzer designed specifically for monitoring moisture levels in dew point and PPM units. This trace moisture analyzer utilizes an electro-chemical (P205) sensor in combination with a proprietary semi permeable diffusion membrane.
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Moisture Permeability Tester
DRK501D
Shandong Drick Instruments Co., Ltd.
It is used for the determination of water vapor permeability of rigid foam plastics and other materials.
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Magnetic Field And Permeability Measurement
MAGNETOMAT 1.790
Foerster Instruments, Incorporated
The MAGNETOMAT 1.790 is a measuring system for the precision detection of magnetic flux density and relative permeability. The MAGNETOMAT software is used for displaying the measured values and saving and exporting data. The wide range of probes facilitates optimal adjustment to the conditions of the application, such as the measurement of relative permeability within the scope of the quality control of stainless steel and low-permeable (non-magnetic) alloys. Further applications include the long-term monitoring of the magnetic environment, e.g. prior to installing magnetically sensitive devices, and the localization of ferrite enclosures in stainless steel and NE materials. Changes in material (sulfidation, degradation of lamination, structural changes) can also be proven thanks to permeability comparative measurements.
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Permeability Meters
Mk VI
Our broad range of permeability measurements instruments are at the cutting edge of technology and give precise, reliable, easy and fast result. The instruments can be configured for almost any gas or gasses, including water vapour, hydrocarbons, O2, CO2, N2, H2 and He.
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Water Vapour Permeability Tester
TF165
TESTEX Testing Equipment Systems Ltd.
Water Vapour Permeability Tester, to determine the resistance of textiles and textile composites (particularly action wear fabrics) to water vapour penetration. Water vapour permeability tester consists of 8 containers with water reservoirs; a standard permeable fabric cover, sample holder ring and precision drive system.
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Gravimetric Permeability Measurement System
Our Gravimetric permeability measurement system is designed to meet this need and is designed around a high quality solid acrylic water bath which reduces critical thermal losses.
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Medical Masks Differential Pressure Tester
Sataton Instruments Technology CO., Ltd
Medical face mask differential pressure tester also called mask breathility tester is to determine the breathability of medical face mask materials. The tester can measure the differential pressure (Delta P) required to draw air through a measured surface area at a constant air flow rate is used to measure the air exchange pressure of the medical face mask materials. By providing the suction air through the holding sample, the tester can measure the Delta P by differential pressure transducer. It is to determine the air permeability and using comfort of the materials for medical mask.
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Formation Damage
Formation Response Testers (FRT) are designed to accurately measure the permeability changes of a formation sample when exposed to a variety of test fluids.
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Magnetic Material Test Fixture
16454A
The 16454A is designed for accurate permeability measurements of toroidal-shaped magnetic materials. Since the construction of this fixture creates one turn around the toroid (with no magnetic flux leakage), the need of winding a wire around the toroid is unnecessary. Complex permeability is calculated from the inductance with and without the toroid. When the E4991A/4291B with option 002 is used as the measurement instrument, direct readouts of complex permeability are possible. In addition, it is furnished with a small and a large fixture to adapt to a wide range of sizes.
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Materials Test Equipment
Materials test equipment and accessories for determining how materials interact with electromagnetic fields, by calculating permittivity and permeability. Accurate measurements of these material properties helps engineers achieve the best performance for an application, while shortening the design cycle and minimizing material scrap.
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DC Hysteresis Graph
DX-2012SD
Automatic measurement on basic magnetization curve and magnetic hysteresis loop under static state of soft magnetic material, accurate measurement on static magnetic characteristic parameters such as initial permeability µi, maximum permeability µm, saturation magnetic induction Bs, remanence Br, coercive Hc and hysteresis losses Pu.
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Sensirion SHT31-DIS-B Humidity and Temperature Sensor Breakout Board
SEN-37002-F
Breakout board for the Sensirion SHT31-DIS-F with a built-in permeable membrane filter. This sensor is an extremely accurate digital (I2C interface) temperature and humidity sensing device, with +/-0.2C temperature and +/-2% humidity accuracy typical. These specs far exceed the accuracy of ICs that came before it, including the HTU2x and SHT1x series, and improves upon the success of the SHT2x that came before it. In addition, the SHT31-DIS-B has a wide input voltage range of 2.4V-5.5V and includes temperature isolation and airflow cutouts as recommended for the optimal operation. Finally, in the case of environmental changes that could cause light condensation, the SHT31-DIS-B has a built-in heater to burn off any condensate.
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Air Permeability Tester
TF164B
TESTEX Testing Equipment Systems Ltd.
Our Air Permeability Tester determines the resistance of fabrics (woven, knitted and non-woven textile materials) to the passage of air (air flow) under constant pre-set air pressure while firmly clamped in the test rig of selected test head/area.The specimen is loaded to the test area of the instrument easily by means of a pneumatic holder. By pressing down the holder to start the test. The air permeability tester is equipped with a vacuum pump to draw air through an automatic interchangeable test head with a circular opening. The pre-selected test pressure is automatically maintained, and after a few seconds the air permeability of the test specimen is digitally displayed in the pre-selected unit of measure on the touch panel after test the holder is released and the vacuum pump is shut off.
