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Multiple testing methods for Accurate Packaging Materials Water Vapor Permeability

Multiple testing methods for Accurate Packaging Materials Water Vapor Permeability

Multiple testing methods for Accurate Packaging Materials Water Vapor Permeability

Product catalog summary
Introduction to Water Vapor Permeability (WVP)
Water vapor permeability is crucial for assessing the water barrier properties of packaging materials such as films and sheets. It measures the amount of water vapor that can pass through a material under specific conditions of temperature and humidity.
Gravimetric Method
The gravimetric method, established in the mid-19th century and standardized by ASTM E 96 in 1953, is the foundational approach for WVP testing. It involves measuring the weight change of a desiccant exposed to water vapor through the test specimen. Modern instruments integrate the testing environment and weighing process, enhancing accuracy and efficiency. Labthink's C360H system is based on this method and complies with ASTM E96 standards.
Sensor Methods
Sensor methods, including relative humidity, infrared, and electrolytic sensors, offer faster testing and can simulate real-world conditions. Labthink's C303H system uses an infrared water vapor sensor and adheres to ASTM F1249 and ISO 15106-2 standards.
Comparison and Industry Application
While multiple methods exist, the gravimetric method remains the most reliable and widely used due to its independence, scientific basis, and high repeatability. It is considered the arbitration method for resolving WVP disputes. As the demand for functional packaging materials increases, testing methods continue to evolve. Labthink promotes collaboration with industry companies for quality control and further information is available on their website.
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Catalog excerpts

Multiple testing methods for Accurate Packaging Materials Water Vapor Permeability-1

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Multiple testing methods for Accurate Packaging Materials Water Vapor Permeability Water vapor permeability is a key performance indicator for the water barrier properties of packaging materials like films and sheets. It reflects the amount of water vapor that can permeate a material of specific thickness under controlled conditions of temperature and relative humidity. The gravimetric method, introduced in the mid-19th century, is the foundation for WVP testing. It directly measures the weight change of a desiccant exposed to water vapor transmitted through the test specimen. This method is enshrined in ASTM E 96, the first water vapor permeability testing standard established in 1953. Modern gravimetric instruments combine the testing environment and weighing into a single unit, enhancing accuracy and simplifying operation. Advancements in weighing technology further improve test efficiency and precision. Labthink C360H Water Vapor Transmission Rate Test System is developed based on the gravimetric determination method and conforms to ASTM E96. 1

 Open the catalog to page 1
Multiple testing methods for Accurate Packaging Materials Water Vapor Permeability-2

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Sensor methods encompass various technologies like relative humidity, infrared, and electrolytic sensors. These methods offer faster testing compared to the gravimetric method and can potentially simulate real-world packaging conditions. Labthink C303H Water Vapor Transmission Rate Test System utilizes infrared water vapor sensor, it is developed according to ASTM F1249 and ISO 15106-2. With multiple water vapor permeability testing methods available, gravimetric method stands out as the most widely used and reliable one. Its ability...

 Open the catalog to page 2
Multiple testing methods for Accurate Packaging Materials Water Vapor Permeability-3

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

 Open the catalog to page 3

All Labthink Instruments Co., Ltd. catalogs and technical brochures

  1. C610M

    3  Pages

  2. C690H

    4  Pages

  3. C130H

    4  Pages

  4. COF-P01

    2  Pages

  5. VAC-V2

    3  Pages

  6. C230H (2025)

    4  Pages

  7. C610H

    3  Pages

  8. C206H

    4  Pages

  9. C406H

    5  Pages

  10. C403H

    5  Pages

  11. C 681M

    1  Page

  12. C660B (2025)

    3  Pages

  13. C632M

    3  Pages

  14. C630H

    3  Pages

  15. C620H

    3  Pages

  16. C 640

    4  Pages

  17. C 660M

    3  Pages

  18. C306H (2025)

    4  Pages

  19. C203H

    4  Pages

  20. BTY-B3P

    2  Pages

  21. C360M

    4  Pages

  22. C632B

    3  Pages

  23. C190H

    3  Pages

  24. C390H

    4  Pages

  25. C360H

    4  Pages

  26. C660M

    3  Pages

  27. C303H

    4  Pages

  28. C106H

    5  Pages

  29. C640

    4  Pages

  30. MXD-02

    2  Pages

  31. CHY-C2A

    2  Pages

  32. C611B

    2  Pages

  33. CH130

    4  Pages

  34. C 631 H

    2  Pages

  35. C660 B

    3  Pages

  36. VAC-VBS

    3  Pages

  37. XYD-15K

    2  Pages

  38. C360

    4  Pages

  39. C631 H

    2  Pages

  40. FST-02

    2  Pages

  41. C681 M

    2  Pages

  42. C230

    4  Pages

  43. C631H

    2  Pages

  44. C612M

    3  Pages

  45. SLY-SI

    2  Pages

  46. C360 M

    4  Pages

  47. C611M

    2  Pages

  48. C330H

    4  Pages

  49. Leak Tester

    3  Pages

  50. Tensile Testers

    19  Pages

  51. FDI-01

    5  Pages

  52. DIN 75201

    2  Pages

  53. Abrasion Test

    2  Pages

  54. Torque Meter

    2  Pages

  55. Leak Detector

    2  Pages

  56. Torque tester

    2  Pages

  57. Impact tester

    2  Pages

  58. Gas Analyzer

    2  Pages

  59. TOQUE TESTER

    1  Page

Archived catalogs

  1. C611M

    2  Pages

  2. C306H

    3  Pages

  3. C230H

    4  Pages

  4. Leak Tester

    2  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.