Distilled Water USP Grade
Ultra-pure distilled water meeting USP standards for pharmaceutical use. HTS 2853.90.90 covers 'distilled or conductivity water and water of similar purity' explicitly. Free of ions, used in injections and labs.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If suitable for human consumption without further purification
Drinking waters, even purified, go to Chapter 22; Chapter 28 only for chemically similar purity.
If labeled as conductivity water specifically
Subheading 2853.90.10 for conductivity water; 2853.90.90 is residual 'other'.
If containing diagnostic reagents or buffers
Purified water as reagent medium classifies in 3822 for lab chemicals.
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Import Tips & Compliance
• Include USP/EP certificate of analysis showing conductivity <1 μS/cm
• Use food-grade/sterile packaging; validate against 2201.10 if drinkable
• Declare exact purity specs to avoid reclassification as regular water
Related Products under HTS 2853.90.90
Copper Phosphide (Phosphor Copper)
Copper phosphide, containing more than 15% phosphorus by weight, used in metallurgy for deoxidizing and alloying. Classified under HTS 2853.90.90 as per Chapter Note 7, which explicitly includes it in heading 2853. It is an inorganic compound of phosphorus and copper, not chemically excluded.
Zinc Phosphide Powder
Chemically defined zinc phosphide (Zn3P2) used as rodenticide active ingredient or in semiconductors. Falls under HTS 2853.90.90 as other phosphides, inorganic compounds per heading scope excluding ferrophosphorous. Highly reactive with moisture, producing phosphine gas.
Aluminum Phosphide Tablets
Tableted aluminum phosphide (AlP) for fumigation, generating phosphine gas. Classified in 2853.90.90 as chemically defined phosphide, inorganic compound under heading 2853. Excludes only ferrophosphorous per hierarchy.
Liquid Air (Synthetic)
Liquefied atmospheric air, rare gases not removed, used for cryogenic cooling. Falls under HTS 2853.90.90 as 'liquid air (whether or not rare gases have been removed)'. Inorganic compressed/liquefied gas mixture.
Dental Amalgam Alloy
Silver-tin-mercury amalgam powder for dental fillings, excluding precious metal amalgams. HTS 2853.90.90 includes 'amalgams, other than amalgams of precious metals'. Chemically defined alloy for restorative dentistry.
Conductivity Water ASTM Type I
ASTM Type I conductivity water with resistivity >18 MΩ·cm for semiconductor rinsing. Specifically named in 2853.90.90 as 'water of similar purity'. Ultra-pure for electronics manufacturing.