Optical Comparator Stage Micrometer
Calibration standard with precise etched scales for verifying accuracy of optical comparator/profile projector stages under HTS 9031. Essential accessory for ensuring measurement traceability in quality control. Specifically designed for 9031 profile projectors.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported solely as glass scale without measurement instrument context
Glass products not proven as 9031 accessories fall under Chapter 70.
If containing optical elements qualifying as complete checking instrument
May be classified as full profile projector rather than mere accessory.
If for speedometers/tachometers rather than profile projectors
Different revolution/counter instrument heading applies by end use.
Not sure which classification is right?
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Import Tips & Compliance
• Include NIST-traceable certification; uncalibrated scales may shift to glass articles (7016)
• Document as 'accessory for 9031.80 profile projectors' to prevent optical element misclassification
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