Paper Burst Tester Diaphragm Clamps
Precision clamps for securing rubber diaphragms in Mullen burst testers, used for paper and board strength testing. They ensure leak-free specimen clamping per TAPPI T403 and are accessories for compressibility testers. These clamps fall under tariff item 9024.90.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the clamps are designed for a specific non-metal testing machine
If the clamps are intended for testing materials other than metals, they may be classified under other testing machines.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Declare the clamps as accessories for Mullen burst testers, referencing TAPPI T403 for clarity
• Provide specifications for the clamp materials and dimensions
• Ensure the clamps are classified as parts of the testing machine, not as general fasteners
Related Products under Tariff item 9024.90.00
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A 10mm tungsten carbide ball indenter used in Brinell hardness testing machines. It creates a standardized indentation on large forgings and castings, which is then measured optically to determine the HB hardness scale. This is an essential accessory for hardness testing equipment under heading 90.24.
Charpy Impact Test Striker
A precision-machined striker for Charpy pendulum impact testers, used to measure material toughness at various temperatures. It features standardized V-notch geometry per ASTM E23 and is a critical accessory for mechanical property testing machines. This striker is classified as an accessory under tariff item 9024.90.00.
Compression Test Machine Spherical Seating
A self-aligning spherical seat for concrete cylinder compression testers, ensuring uniform load distribution up to 2000kN per ASTM C39 standards. This accessory is used in compressibility testing machines and is essential for accurate test results. It falls under tariff item 9024.90.00 as a part of mechanical property testing equipment.
Creep Test Furnace Specimen Grips
High-temperature collet grips for creep rupture testing machines, operating from 20-1200°C to measure long-term material deformation. Constructed from Inconel for durability under extreme conditions. These grips are accessories for mechanical property testing machines under tariff item 9024.90.00.
Drop Weight Tear Test Striker
A pressurized striker assembly for Drop Weight Tear Testing (DWTT) machines, used to test pipeline steel fracture properties per API 5L3. It is designed for high-velocity impact testing and is a part of mechanical property testing equipment. This striker falls under tariff item 9024.90.00.
Extensometer Strain Gauge Clips
High-precision knife-edge clips for clip-on extensometers, used to measure elongation during tensile tests on metals and composites. They are temperature resistant up to 1200°C for hot testing applications. These clips are parts for elasticity testing appliances under tariff item 9024.90.00.