Search Results

Any time

Custom range...

All results

Advanced Search

About 16,200 results (0.22s)

Including results for WVTR test instruments
Search only for MVTR test instruments

AI Overview

MVTR (Moisture Vapor Transmission Rate) test instruments measure the rate at which water vapor passes through flexible barriers, films, or packages to ensure moisture barrier performance. Common methods include gravimetric (cup) and infrared sensor techniques, offering precise temperature and humidity control. These devices are essential for industries like packaging, pharmaceuticals, and electronics.

Key MVTR Test Instruments and Technologies

Labthink Instruments: Offers a wide range of Water Vapor Transmission Rate Testers, including the i-Hydro 7300 for high-sensitivity testing. They support both gravimetric and sensor-based methods for films, bottles, and finished packages.
AMETEK MOCON: Provides water vapor permeation and permeability analyzers used for analyzing moisture transmission in barrier materials.
GBPI Testing Instruments: Features the AUTO W806, which uses weight reduction (gravimetric) methods, and the W405L, which utilizes infrared sensor methods.
Thwing-Albert Instrument Company: Provides water vapor testing equipment, including EZ-Cup Vapometers for simple, fast testing.
Testron Group: Offers Moisture Vapor Transmission Rate Analyzers for testing flexible barrier materials.

Main Testing Methods

Gravimetric Method (Cup Method): Measures the weight increase (desiccant method) or decrease (water method) of a test dish over time. It is commonly used with ASTM E96 and ISO 2528 standards.
Electrolytic/Sensor Method (e.g., Infrared, Coulometric): Uses highly sensitive detectors (like infrared sensors) to measure the water vapor as it passes through the sample, often resulting in faster test times.

Applications

Packaging: Testing plastic films, paper, and laminates for food packaging to ensure moisture protection.
Pharmaceuticals: Measuring moisture ingress into blister packs and bottles.
Material Science: Testing rubber, polymer, and building materials.

Key Features of Modern MVTR Testers

Controlled Environment: Precise regulation of temperature, relative humidity (RH), and wind speed.
Automatic Data Logging: Computerized systems that automate measurements and calculations.
Multi-Chamber Options: Instruments allowing multiple samples (e.g., 3-6) to be tested simultaneously.

Water Vapor Transmission Rate WVTR Tester - Labthink Testing Equipment
Labthink offers WVTR testers and MVTR test machines that are designed to meet international testing standards. WVTR stands for Wat...
Labthink
Water Vapor Transmission Testing Equipment | Thwing-Albert
The cup method is commonly used to test a material's permeability and ability to hold moisture. Thwing-Albert offers a variety of ...
Thwing-Albert
Water Vapor Permeation Analyzers - WVTR Testing
AMETEK MOCON provides water vapor permeation and permeability analyzers to test water vapor and moisture transmission rates. Learn...
Mocon (AMETEK)

Show all

Web results

Water Vapor Transmission Rate WVTR Tester

Labthink

https://www.labthinkinternational.com › test-property

Labthink

https://www.labthinkinternational.com › test-property

Precise Water Vapor Transmission Rate (WVTR) Testers based on vairous Methods. ASTM E96, ASTM F1249 Standards Complied. Click for More Details!

Water Vapor Permeation Analyzers - WVTR Testing

Mocon (AMETEK)

https://www.ametekmocon.com › products › wvtr-perme...

Mocon (AMETEK)

https://www.ametekmocon.com › products › wvtr-perme...

AMETEK MOCON provides water vapor permeation and permeability analyzers to test water vapor and moisture transmission rates. Learn more about our WVTR ...

Water Vapor Permeability Tester

en.labthink.com

https://en.labthink.com › en-us › products › test-property

en.labthink.com

https://en.labthink.com › en-us › products › test-property

Labthink provides the most comprehensive water vapor permeation analyzers. Our WVTR testers support multiple ASTM/ISO methods for precise moisture ...

Water Vapor Transmission Testing Equipment

Thwing-Albert

https://www.thwingalbert.com › product-category › mo...

Thwing-Albert

https://www.thwingalbert.com › product-category › mo...

We carry testing equipment such as our EZ-Cup for measuring moisture vapor transmission rate (WVTR) using the cup method. Contact us for a quote today.

Web results

Moisture Vapor Transmission Analyzers Fo Flexible Barrier ...

TESTRON Group

https://testrongroup.com › test-mvtr-in-flexible-barrier-...

TESTRON Group

https://testrongroup.com › test-mvtr-in-flexible-barrier-...

Jun 7, 2022 — Use Moisture Vapor Transmission Rate analyzers to accurately test MVTR in flexible barrier materials. Get precise data for reliable quality ...

A Guide to Moisture Vapor Transmission Rate Testing ...

LinkedIn · ChiuVention Textile Tester

4 reactions · 1 year ago

LinkedIn · ChiuVention Textile Tester

4 reactions · 1 year ago

A Water Vapor Transmission Rate (WVTR) Tester is an essential instrument for measuring the moisture vapor transmission rate of various materials ...Read more

Moisture vapor transmission rate

Wikipedia

https://en.wikipedia.org › wiki › Moisture_vapor_trans...

Wikipedia

https://en.wikipedia.org › wiki › Moisture_vapor_trans...

Moisture vapor transmission rate (MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance.Read more

MVTR Testing – Moisture Vapor Transmission Rate Testing

Flex-Pack Engineering

https://www.flexpackeng.com › mvtr-moisture-vapor-tr...

Flex-Pack Engineering

https://www.flexpackeng.com › mvtr-moisture-vapor-tr...

Jul 1, 2022 — Flex-Pack Engineering has the experience and highly specialized instruments which measure MVTR by creating a moisture gradient from one side of the film to the ...Read more

Moisture Vapor Transmission Rate - Wilson College of Textiles

Wilson College of Textiles

https://textiles.ncsu.edu › Home › Comfort Performance

Wilson College of Textiles

https://textiles.ncsu.edu › Home › Comfort Performance

MVTR Test Apparatus. Sample specimens are conditioned and measurements made in a standard atmosphere laboratory (70 ± 2°F and 65% RH).Read more

Missing: ~~instruments~~ ‎| Show results with: instruments

What Is MVTR Test?

GBPI

https://www.gbpitester.com › blog › what-is-mvtr-test-_...

GBPI

https://www.gbpitester.com › blog › what-is-mvtr-test-_...

Moisture vapor transmission rate(MVTR), also water vapor transmission rate (WVTR), is a measure of the passage of water vapor through a substance.Read more

Images