Surface Tension Tester
Du Noüy ring or Wilhelmy plate apparatus measuring liquid interfacial tension for chemical research and quality control. Fits HTS 9027.89.80 for instruments checking surface tension, a physical property analysis.
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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 automated with electronic viscosity measurement
Certain viscosity/surface tension combos have specific provisions.
If lab glassware handling equipment without measurement
Mechanical lab apparatus without Chapter 90 function goes to 84.
If industrial profile projectors measuring tension indirectly
Precision measuring machines for industrial use classify in 9031.
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Import Tips & Compliance
• Include force measurement precision specs (mN/m) in declarations
• Document method compliance (ASTM D971) for technical validation
• Ship rings/plates separately if interchangeable parts
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