ASTM F739
Standard Test Method for Permeation of Liquids and Gases Through Protective Clothing Materials Under Conditions of Continuous Contact
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About This Item
ASTM F739 is the ASTM standard that addresses how liquids and gases permeate protective clothing materials under conditions of continuous contact. It is used to help evaluate whether a material can resist transfer of substances over time, which is important when selecting protective garments and related barrier materials. As a technical test method, it supports more consistent product comparison, quality control, and compliance decisions for materials intended to provide chemical protection.
ASTM F739 standard overview
The Standard Test Method for Permeation of Liquids and Gases Through Protective Clothing Materials Under Conditions of Continuous Contact focuses on measuring how a test substance moves through a material when contact is maintained. ASTM F739 is commonly referenced when evaluating protective clothing materials for barrier performance, especially where ongoing exposure is a concern. The standard provides a structured way to assess permeation behavior so buyers, labs, and manufacturers can compare materials using a consistent technical basis.
Where is ASTM F739 used?
This standard is commonly used in testing and evaluation programs for protective clothing materials, such as barrier fabrics, laminates, gloves, sleeves, aprons, and other apparel components designed for continuous exposure conditions. ASTM F739 may be applied in laboratory workflows, product development, and material qualification where liquid or gas resistance must be assessed in a controlled way. It is especially relevant when determining whether a material is suitable for protective applications that depend on reliable permeation resistance.
Practical importance of ASTM F739
ASTM F739 matters because permeation performance can affect user protection, product selection, and specification compliance. A standardized test method helps reduce variability in material evaluation and supports more defensible procurement and quality control decisions. For manufacturers and purchasers, the standard can assist with comparing protective materials, documenting performance, and identifying whether a material meets internal or customer requirements for continuous-contact exposure conditions. ASTM F739 is therefore a practical tool for technical review and risk reduction.
- Protective clothing material evaluation
- Continuous-contact permeation testing
- Laboratory comparison of barrier performance
- Quality control and procurement support
- Technical basis for product selection
- Publication Date: 2020-11-10
- Publisher: ASTM
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