IRMM-1027 Potassium Dichromate Gravimetric Standard
High-purity potassium dichromate certified by IRMM for UV-VIS spectrophotometry calibration, with purity value traceable to the SI. Under HTS 3822.90.00.00 as certified reference for quantitative spectroscopic analysis in chemical metrology labs. Used for molar absorptivity determinations.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +10.0% | 10% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pure chemical without certification
Uncertified potassium dichromate classified as inorganic salt of chromic acid.
If general laboratory chemical reagent
Non-certified pure chemicals for lab use fall under unspecified diagnostic reagents.
If for industrial analytical use
Bulk chemicals for process control rather than metrology classified as industrial preparations.
Not sure which classification is right?
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Import Tips & Compliance
• Hazardous material class 5.1 oxidizer declaration; provide IRMM purity certificate
• TSCA certification for chromium compounds
• Stable room temperature shipping allowed
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