The Fundamental Difference: Testing Methodology
The most significant distinction lies in how the resistance is measured.
| Feature | ANSI/ISEA 105 (A9) | EN 388:2016 (Level F) |
| Primary Test | TDM-100 Test | TDM-100 Test |
| Measurement | Grams of force | Newtons (N) of force |
| Threshold | ＞6,000 grams | ＞30 Newtons |
| Regional Focus | North America | Europe / International |
1. ANSI/ISEA 105 (A9): The North American Standard
In the ANSI scale, cut resistance is measured in grams of force required to cut through a material using a straight blade in a TDM-100 test. Level A9 is the highest rating on this scale, requiring a force of at least 6,000 grams (roughly 13.2 lbs).
2. EN 388:2016 (Level F): The European Standard
The EN 388 standard (which often appears on gloves as a shield icon with four digits and two letters, like 4X43F) uses the same TDM-100 blade test, but measures the result in Newtons. Level F is the highest possible rating, achieved when the material withstands at least 30 Newtons of force.
Why the Difference Matters: The Conversion Factor
It is common for technical teams to compare these two ratings. Mathematically, 30 Newtons converts to approximately 3,059 grams.
Here is the critical takeaway for B2B buyers:
EN 388 Level F starts at 30 Newtons (~3,059 grams).
ANSI Level A9 starts at 6,000 grams.
Because the ANSI A9 threshold (6,000g) is significantly higher than the EN 388 Level F threshold (~3,059g), an ANSI A9-rated fabric will almost always meet or exceed EN 388 Level F requirements. However, a material that just barely passes Level F may not necessarily meet the requirements for A9.
Selecting the Right Fabric for Your Needs
When choosing between these ratings, consider the operational environment of your end-users:
Specify ANSI A9 if your product is destined for heavy-duty industrial tasks in North America, such as steel handling, automotive stamping, or oil and gas operations where the highest level of mechanical risk is present.
Specify EN 388 Level F for European compliance or when your market prioritizes international ISO-standardized testing protocols.
At Towex, we engineer our high-performance fibers to surpass both standards. We don't just aim for "passing" marks; we aim for a safety margin that ensures consistent, reliable performance under the most grueling conditions.
Why Partner with Towex?
Your brand's safety credentials are only as good as the raw materials inside your products. Towex provides:
Validated Performance: Full laboratory documentation for both ANSI and EN standards.
Global Compliance: Materials engineered to satisfy international procurement requirements.
Technical Consulting: Our experts help you balance high-level cut protection with essential factors like dexterity, moisture management, and thermal comfort.
Elevate Your Protection Standards
Are you ready to integrate market-leading protection into your next product line? Don't leave safety to chance.
Get the technical specs. Contact our engineering department to receive comparative test data and material samples that prove why Towex is the preferred choice for high-cut-resistance applications.
Our MSc-led R&D team can customize fabrics based on your washing requirements. Contact us at sales@towex.com for details.