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  3. ASTM D1434 Permeability Tester- Pressure Differential Method for Determining Permeation Performance of Biodegradable Films

ASTM D1434 Permeability Tester- Pressure Differential Method for Determining Permeation Performance of Biodegradable Films

ASTM D1434 Permeability Tester- Pressure Differential Method for Determining Permeation Performance of Biodegradable Films

ASTM D1434 Permeability Tester- Pressure Differential Method for Determining Permeation Performance of Biodegradable Films

Product catalog summary
Introduction
ASTM D1434 is a standard developed by the American Society for Testing and Materials (ASTM) to evaluate the gas permeability of plastic films, coatings, laminates, and plastic-coated paper or fabrics. The ASTM D1434 Permeability Tester, such as Labthink’s C106H Gas Permeation Test System, is designed to determine the transmission rate of gas through film materials, particularly biodegradable films.
Principle of the Pressure Differential Method
The pressure differential method involves creating a gas pressure difference across the film material, causing gas to permeate from the high-pressure side to the low-pressure side. The gas transmission rate is calculated by monitoring the pressure change on the low-pressure side. The biodegradable film is clamped and sealed between high and low-pressure chambers, evacuated to a specified vacuum, and then subjected to a constant pressure difference. This allows for the determination of various barrier parameters of the film.
Importance of Accurate Evaluation
Accurate evaluation of gas permeability is crucial for understanding the barrier properties of biodegradable films in different environments. This ensures the film's performance and safety during use and provides data support for research and development, aiding in the optimization of film structure and performance.
Testing Procedure
  • Sample Preparation: Ensure samples are free from defects and have a uniform thickness, generally not exceeding 3mm.
  • Test Setup: Place the specimen in the test chamber, set parameters such as temperature, humidity, test time, and test gas.
  • Start Test: Initiate the test, allowing the instrument to automatically perform the test and record data.
  • Data Recording and Analysis: The instrument records data such as the gas transmission rate, enabling analysis and comparison.
Conclusion
The ASTM D1434 Permeability Tester is an effective tool for measuring the gas permeability of biodegradable films using the pressure differential method. It provides accurate and rapid measurements, supporting quality control in research, development, and production processes.
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Catalog excerpts

ASTM D1434 Permeability Tester- Pressure Differential Method for Determining Permeation Performance of Biodegradable Films-1

ASTM D1434 Permeability Tester: Pressure Differential Method for Determining Permeation Performance of Biodegradable Films ASTM D1434 is a standard developed by the American Society for Testing and Materials (ASTM), used to evaluate the gas permeability of plastic films, coatings, laminates, and plasticcoated paper or fabrics under specified conditions. An ASTM D1434 permeability tester is designed based on this standard, primarily used to determine the transmission rate of gas through film materials. These measurements provide an estimate of single gas transmission through films and coatings.

 Open the catalog to page 1
ASTM D1434 Permeability Tester- Pressure Differential Method for Determining Permeation Performance of Biodegradable Films-2

The ASTM D1434 Permeability Tester (e.g., Labthink’s C106H Gas Permeation Test System) is a professional instrument that measures material permeation performance based on the pressure differential method, especially suitable for testing the gas permeation performance of biodegradable films. ASTM D1434 Pressure Differential Method Principle The pressure differential method works by creating a gas pressure difference between the two sides of the film material, causing gas to permeate from the high-pressure side to the low-pressure side. Gas transmission rate is calculated by monitoring the pressure...

 Open the catalog to page 2
ASTM D1434 Permeability Tester- Pressure Differential Method for Determining Permeation Performance of Biodegradable Films-3

biodegradable films in different environments, helping to ensure the film's performance and safety during use. Concurrently, the test results can provide data support for the R&D and production of biodegradable films, aiding in the optimization of the film's structure and performance. Steps for testing the biodegradable films GTR with the ASTM D1434 gas permeability tester: 1. Sample Preparation: Test samples should be free from wrinkles, creases, pinholes, or stains, the size of the sample should be sufficient for cutting and sealing. Sample thickness should be uniform, generally not exceeding...

 Open the catalog to page 3

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*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.
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