Testing Standard:
Standard Number
TAPPI T460
Standard Title
Air Resistance of Paper (Gurley Method)
Overview for TAPPI T460 Gurley Air Resistance:
Rationale for TAPPI T460 Gurley Air Resistance:
Air Resistance of Paper (Gurley Method). Data is obtained by measuring the time it takes for a certain volume of air to pass through the material. Some materials require a high air resistance which will allow the use of vacuum opening or lifting devices mainly used in manufacturing and packing of corrugated boxes. With the air resistance of paper influenced by the fiber type, length, hydration, orientation, compaction, and sizing, the data obtained from this test can verify the specification set by the manufacturer. Recycled paper generally has fibers that are ½ the length of virgin paper and therefore the porosity can be affected.
Key Points:
- Determines the need for moisture barrier coatings and the sizing of paper
- Identifies possible issues with manufacturing to end use
- Utilize this test method to ensure quality control
Related Standards:
- ISO 5636-5 – Paper and Board – Determination of Air Permeance (Medium Range) – Part 5: Gurley Method
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Accreditations
Affiliations
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 The APASS program was designed by Amazon to help support vendors, sellers, and manufacturers in obtaining certification of their products as Frustration Free Packaging (FFP), Ships in Own Container (SIOC), or Prep-Free Packaging (PFP).
