Recording Hygrometer Chart Drum
Mechanical chart drum accessory for strip-chart recording hygrometers measuring humidity over time. Holds circular paper charts for 7-31 day recording periods. Classified in HTS 9025.90.06.00 as a dedicated recording component for 9025 hygrometers.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If adaptable to non-9025 recording instruments
Multi-purpose mechanical recorders classified as general parts in 9033 per chapter note 2(c).
If imported as paper chart rolls only, without drum
Paper components classified by material; drum assembly elevates to instrument part.
If for weighing instrument chart mechanisms
Similar recording parts for scales (9026? No, 8423 excluded) go to respective headings.
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Import Tips & Compliance
• Supply engineering drawings showing exclusive compatibility with 9025 hygrometer models
• Label as '9025 dedicated recording accessory' to aid Customs principal use determination
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