ASTM E128
Standard Test Method for Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use
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About This Item
ASTM E128 is the ASTM standard for the Standard Test Method for Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use. It provides a technical basis for evaluating how these filters perform, helping users compare products and verify whether a filter meets expected laboratory needs. By focusing on pore diameter and permeability, the standard supports more consistent product selection, testing, and quality control for rigid porous filter applications.
What is ASTM E128?
ASTM E128 is a laboratory test method used to measure key characteristics of rigid porous filters: maximum pore diameter and permeability. The standard is designed to support evaluation of filter performance in a controlled, repeatable way. As a technical document, it helps define a common approach for assessing how a filter may pass fluids and how its pore structure behaves during use. This makes ASTM E128 useful for product comparison, inspection, and compliance-focused testing.
Where is ASTM E128 used?
This standard is commonly used in laboratory settings where rigid porous filters are selected, tested, or reviewed for performance. It may apply during incoming inspection, product qualification, or routine quality checks for filter materials and components used in lab equipment. ASTM E128 is also relevant when comparing filters from different suppliers or verifying whether a specific filter design is suitable for a controlled testing workflow. Its focus remains on measurable filter behavior rather than general filtration theory.
Why is ASTM E128 important?
ASTM E128 matters because pore size and permeability strongly influence how a rigid porous filter performs in service. A consistent test method helps reduce uncertainty in procurement and quality control, especially when filter performance must be documented or compared across products. Using ASTM E128 can support more reliable evaluation, improve consistency between test results, and lower the risk of selecting a filter that does not meet laboratory requirements. For organizations that depend on technical documentation, it adds clarity and confidence.
- Maximum pore diameter measurement
- Permeability evaluation
- Rigid porous filters for laboratory use
- Product comparison and verification
- Quality control testing support
- Publication Date: 2019-11-12
- Publisher: ASTM
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