HS Code for Silica test tubes

Silica test tubes are classified under HS code 7017.10. This code is found in Chapter 70, which covers glass and glassware. Heading 7017 is specifically for laboratory, hygienic, or pharmaceutical glassware, whether or not graduated or calibrated. Subheading 7017.10 is reserved for glassware made of fused quartz or other fused silica. These products are distinguished from standard glass test tubes by their ability to withstand extremely high temperatures and thermal shock, as well as their high UV transparency. The classification is strictly based on the material composition (fused silica) and the intended use in a laboratory or medical environment. Even if the tubes are not graduated, their shape and material properties as laboratory vessels dictate this classification.

Products Included

• Fused quartz test tubes
• Fused silica combustion tubes
• High-temperature silica sample tubes
• Transparent fused silica laboratory vials
• Quartz glass tubes for chemical analysis

Common Misclassification

The most frequent misclassification is under HS code 7017.20, which covers laboratory glassware made of other glass having a low coefficient of expansion (such as borosilicate glass/Pyrex). While both are used in labs, fused silica (7017.10) has a much higher melting point and lower expansion than borosilicate. Another error is using 7002.31, which covers glass tubing as a raw material. If the tube has been closed at one end or otherwise worked into a finished laboratory vessel (like a test tube), it must be classified under 7017. Finally, ceramic test tubes should be classified in Chapter 69, not Chapter 70.

FAQ

What is the HS code for silica test tubes?

Test tubes made of fused quartz or fused silica are classified under HS code 7017.10.

Can I use 7017.90 for silica test tubes?

No, 7017.90 is a residual category for "other" glass. Since there is a specific subheading (7017.10) for fused silica, it must be used according to the hierarchy of the Harmonized System.