Sr-90 Beta Thickness Gauge

Non-contact gauge using Strontium-90 beta source to measure coating thickness on metal strips. Industrial quality control apparatus under HTS 9022.29.80.00 for ionizing radiation-based measurement excluding medical uses. Continuous web monitoring.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

9031.49Lower: 10% vs 35%

If radiation detector marketed generically

Chapter note 4 prioritizes 9031 for non-specific measuring optical instruments.

9024.80.00Same rate: 35%

If combined with chemical analysis function

Multi-function machines classified by principal use per GRI 3(a).

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Window foil thickness specs critical for beta energy transmission

Calibrate against NIST SRM for customs verification

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