Viscometer Spindle Set
Interchangeable spindles for rotational viscometers (subheading 9027.50) used to measure fluid viscosity in quality control. Constructed from stainless steel or Hastelloy for chemical resistance. 9027.90.84.00 part due to principal use with viscosity instruments.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If marketed as general laboratory stirrers
Non-specific mixing implements fall under machines/appliances having individual functions.
If parts for physical properties testers under 9027.20
Different measurement categories within Chapter 90 have dedicated subheadings.
If stainless steel spindles sold separately without viscometer tie
Base metal articles shift to Section XV without Chapter 90 specificity.
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Import Tips & Compliance
• Match spindle geometry to specific viscometer model (Brookfield LV/RV etc.)
• Include NIST-traceable calibration data
Related Products under HTS 9027.90.84.00
Sound Level Meter Microphone
Type 1 precision condenser microphone for integrating sound level meters (9027.30 for sound measuring instruments). Calibrated to IEC 61672 standards. 9027.90.84.00 replacement part.
HPLC Column Cartridge
A disposable cartridge packed with stationary phase for high-performance liquid chromatography systems (subheading 9027.30). Essential for separating and analyzing compounds in pharmaceutical testing. Classified as 9027.90.84.00 accessory for liquid chromatographs.
Spectrometer Sample Holder
Adjustable holder for solid/liquid samples in optical spectrometers (9027.50). Precision-machined aluminum with alignment features. 9027.90.84.00 accessory for emission/absorption spectroscopy.
Microtome Disposable Blade
High-carbon steel disposable blade for paraffin-embedded tissue sectioning in rotary microtomes (subheading 9027.90.30 microtomes themselves, but blades as parts). Feather or Leica-style for pathology labs. Under 9027.90.84.00 as accessory.
Refractometer Prism Assembly
Sapphire prism with calibration scale for Abbe refractometers (9027.20). Critical for measuring refractive index of liquids. Classified 9027.90.84.00 as dedicated optical component.
Porosimeter Sample Stage
Precision stage for mercury intrusion porosimeters (9027.89) measuring pore size distribution. Includes vacuum seals and positioning controls. 9027.90.84.00 accessory for porosity testers.