HS-6 · Subheading
251200
Siliceous fossil meals (e.g. kieselguhr, tripolite and diatomite) and similar siliceous earths; whether or not calcined, of an apparent specific gravity of 1 or less
Heading 2512 — Siliceous fossil meals (e.g. kieselguhr, tripolite and diatomite) and similar siliceous earths; whether or not calcined, of an apparent specific gravity of 1 or less
Chapter 25: Salt; sulphur; earths and stone
Plain-language overview
Use HS-6 251200 when importing or exporting siliceous fossil meals such as kieselguhr, tripolite, and diatomite. These materials are often used in filtration, as absorbents, or in construction products. For example, a shipment of diatomaceous earth for use in pool filters would fall under this code.
This code specifically covers siliceous earths with an apparent specific gravity of 1 or less, distinguishing them from heavier mineral products. For instance, while HS-6 251210 includes calcined forms of these materials, HS-6 251200 encompasses the uncalcined varieties.
When classifying your products, consider the end-use. If your product is intended for use as a filler or a filtering agent, it likely qualifies under this HS-6. However, if it has been calcined, you may need to look at a different classification.
Be mindful of packaging and labeling. Products classified under this HS-6 should clearly indicate their composition, such as 'diatomaceous earth' or 'kieselguhr,' to avoid confusion with other mineral products that may have different HS codes.
Keywords & topics
Short phrases that describe this HS-6 subheading when you're searching or filtering schedules.
siliceous fossil meals · kieselguhr · diatomaceous earth · tripolite · absorbent materials · filtration agents · construction fillers · uncalcined earths · mineral classification · specific gravity · industrial absorbents · natural filter aids
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Diatomaceous earth used for pool filtration
- Kieselguhr for use in beer and wine filtration
- Tripolite as an absorbent in industrial applications
- Uncalcined siliceous earth for use in construction materials
- Natural diatomite for horticultural use
- Siliceous fossil meal in cosmetics as a thickener
- Absorbent earth for oil spill cleanup
- Natural filter aid in food processing
Common questions
How people often phrase their search when they're trying to classify goods like yours.
- What is HS code 251200 used for?
- How to classify diatomaceous earth?
- Is kieselguhr calcined or uncalcined?
- What are siliceous fossil meals?
- Can I use HS-6 251200 for construction materials?
- What products fall under HS-6 251200?
- How to label diatomaceous earth for shipping?
- What is the specific gravity of kieselguhr?
Related topics
Longer phrases that come up when you're comparing codes or talking to a broker.
- How to classify siliceous fossil meals for import
- Differences between calcined and uncalcined kieselguhr
- What are the applications of diatomaceous earth?
- Shipping requirements for tripolite and similar earths
- Understanding HS codes for filtration materials
- How to determine the specific gravity of siliceous earths
- Best practices for packaging diatomaceous earth
- What is the end-use of kieselguhr in industry?
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products are classified under HS-6 251200?
- HS-6 251200 covers siliceous fossil meals like kieselguhr, tripolite, and diatomite, typically used in filtration, absorbents, and construction.
- How do I know if my product is calcined or uncalcined?
- Calcined products have been heated to high temperatures to remove moisture and change their properties. Check the product specifications or consult your supplier.
- Can I use HS-6 251200 for agricultural applications?
- Yes, diatomaceous earth and similar materials under this code are often used in horticulture and as soil amendments.
- What is the significance of specific gravity in classification?
- Specific gravity helps determine whether a product fits under this HS-6. Products with an apparent specific gravity of 1 or less qualify.
- Are there any special labeling requirements for these products?
- Yes, ensure that your products are labeled clearly with their composition, such as 'diatomaceous earth' or 'kieselguhr,' to comply with customs regulations.
- What should I do if I'm unsure about the classification?
- Consider consulting with a customs broker or trade expert who can provide guidance based on your specific product and its intended use.
- Is there a difference between HS-6 251200 and HS-6 251210?
- Yes, HS-6 251200 covers uncalcined siliceous fossil meals, while HS-6 251210 includes those that have been calcined.
- What are common uses for kieselguhr?
- Kieselguhr is commonly used in filtration processes for beverages, as an absorbent in industrial applications, and as a filler in various products.
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