Classification of Human Tissue Specimen



The subject merchandise is three different forms of Human Liver Tissue Specimens samples as follows:

1) The first item is Formalin-fixed Paraffin Embedded (FFPE) Tissue Block. You state that once the tissue sample is collected, it is immediately fixed in 10 percent neutral buffered formalin to preserve the morphology and cellular details of the sample. The fixed tissue is then embedded into paraffin blocks.

2) The second item is Formalin-fixed Paraffin Embedded Tissue (unstained slides). You state that once the tissue sample is collected, it is fixed in neutral buffered formalin and embedded into paraffin blocks then four micrometer-thick slices of the sample are mounted onto Superfrost® Plus Micro Slides. The product is subsequently air dried for at least an hour. 

3) The third item is Fresh (Wet) Tissue Biopsy. You state that once collected the tissue sample is immediately placed in a 60 milliliter pre-filled polypropylene container that contains 30 milliliters of 10 percent neutral buffered formalin.
All three items will be imported for diagnostic analysis.

Subheading HS (for all liver tissue specimens): 0511.99.


Source: https://rulings.cbp.gov/index.asp, June 194, 2017 (N286658)

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