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HS-6 · Subheading

283220

Sulphites; other than of sodium

Heading 2832Sulphites; thiosulphates

Chapter 28: Inorganic chemicals

Plain-language overview

Use HS-6 283220 when importing or exporting sulphites that are not sodium-based. Common shipments include potassium sulphite used in food preservation or as a reducing agent in chemical processes.

This code specifically applies to sulphites other than sodium, distinguishing it from HS-6 283210, which covers sodium sulphite. If you're dealing with products like calcium or magnesium sulphite, this is the correct classification.

Understanding the nuances between these codes is crucial for compliance. For instance, potassium sulphite is often found in wine-making, while sodium sulphite is widely used in photography and water treatment.

When classifying your product, consider the chemical composition and intended use. If your product is a non-sodium sulphite used in industrial applications, HS-6 283220 is likely the right choice.

Keywords & topics

Useful terms traders and brokers use for this HS-6 subheading.

sulphites classification · potassium sulphite · calcium sulphite · non-sodium sulphites · chemical agents · food preservation · industrial applications · wine-making sulphites · reducing agents · chemical manufacturing · water treatment · dyeing processes · flue gas desulfurization

Examples

Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.

  • Potassium sulphite for food preservation
  • Calcium sulphite used in flue gas desulfurization
  • Magnesium sulphite in chemical manufacturing
  • Ammonium sulphite for dyeing processes
  • Sodium-free sulphite used in wine production
  • Sulphites used as reducing agents in laboratories
  • Industrial-grade sulphites for paper production
  • Sulphite solutions for water treatment applications

Common questions

Frequent classification questions with short practical guidance.

What is HS code 283220 used for?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to classify potassium sulphite?

Write down material, use, and product form first, then compare nearby lines before you lock the code.

Are there different types of sulphites?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

What products fall under HS-6 283220?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Can I use HS-6 283220 for food applications?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

What’s the difference between sodium and non-sodium sulphites?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How do I determine the correct HS code for sulphites?

Match the product to the legal wording, then verify the final pick in your country tariff schedule before filing.

What are the uses of calcium sulphite?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

Related topics

Common real-world topics that come up during code comparison.

How to classify potassium sulphite under HS codes

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Examples of products classified as HS-6 283220

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Differences between sodium and non-sodium sulphites

Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.

What is the use of calcium sulphite in industry?

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Guidelines for importing potassium sulphite

Check the exact product specs and destination-country tariff notes before finalizing the code.

Classification issues with non-sodium sulphites

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Common applications of HS-6 283220 sulphites

Use this topic to narrow your shortlist, then validate the final code against legal wording.

How to find the right HS code for industrial sulphites

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What types of sulphites are covered under HS-6 283220?
HS-6 283220 covers sulphites that are not sodium-based, including potassium, calcium, and magnesium sulphites.
Can I use HS-6 283220 for food-grade potassium sulphite?
Yes, HS-6 283220 is appropriate for food-grade potassium sulphite used in preservation and processing.
What is the main difference between HS-6 283210 and HS-6 283220?
HS-6 283210 is for sodium sulphite, while HS-6 283220 is for other sulphites like potassium and calcium.
Are there any specific regulations for importing sulphites?
Yes, regulations vary by country; check with your local customs authority for specific import requirements.
How do I know if my product qualifies for HS-6 283220?
If your product is a non-sodium sulphite used in industrial or food applications, it likely qualifies for HS-6 283220.
What are common applications for sulphites classified under HS-6 283220?
Common applications include food preservation, chemical manufacturing, and water treatment.
Can I get a ruling on my sulphite classification?
Yes, you can request a binding ruling from your customs authority to confirm the correct HS classification.
What should I include in my shipment documentation for HS-6 283220?
Include the chemical composition, intended use, and any relevant safety data sheets in your shipment documentation.

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