Chapter 7017 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 70.17
CVD Oxidation Furnace Quartz Liner Tube
> A fused silica liner tube designed for chemical vapor deposition (CVD) oxidation furnaces used in semiconductor manufacturing. It protects the furnace chamber while providing a clean, high-purity environment for wafer oxidation processes. This article is laboratory glassware of fused quartz, falling under tariff item 7017.10.00.
7017.10.00Fused Quartz Beaker
> A high-purity beaker made from fused quartz or fused silica, designed for laboratory use in handling corrosive chemicals and high-temperature reactions. It is a classic example of laboratory glassware of fused quartz, classified under tariff item 7017.10.00.
7017.10.00Fused Quartz Diffusion Reactor Tube
> A high-purity fused quartz tube for insertion into diffusion furnaces used in semiconductor wafer production. It withstands extreme temperatures and chemical exposure during doping processes, making it essential for controlled laboratory-like environments. This is laboratory glassware of fused quartz, classified under tariff item 7017.10.00.
7017.10.00Fused Quartz Distillation Apparatus
> A laboratory-scale distillation setup including condenser and receiver made from fused silica for ultra-pure separations. It is designed for scientific research and qualifies as laboratory glassware of fused quartz. This product falls under tariff item 7017.10.00.
7017.10.00Fused Quartz Melting Point Tube
> A capillary tube of fused silica for determining melting points in organic chemistry laboratories. It is calibrated for precise temperature observation and is a specialized laboratory glassware of fused quartz. This product is classified under tariff item 7017.10.00.
7017.10.00Fused Quartz Sample Boat
> A boat-shaped fused silica tray for holding samples during thermal gravimetric analysis in laboratories. It is designed for high-temperature stability and chemical inertness, making it laboratory glassware of fused quartz. This product falls under tariff item 7017.10.00.
7017.10.00Fused Silica Calorimetry Cell
> A precision cell for bomb calorimetry of fuels and organics in research labs, made of fused silica. It is designed for accurate thermal measurements and is a laboratory glassware of fused quartz. This product is classified under tariff item 7017.10.00.
7017.10.00Fused Silica Petri Dish
> A shallow cylindrical dish of fused silica used in laboratories for cell culture and microbial analysis under extreme conditions. It is a laboratory glassware of fused quartz, designed for high-temperature sterilization and chemical resistance. This product falls under tariff item 7017.10.00.
7017.10.00Fused Silica pH Electrode Jacket
> A protective fused quartz jacket for pH electrodes in harsh lab environments. It shields the electrode while allowing accurate measurements, serving as laboratory glassware of fused quartz. This product is classified under tariff item 7017.10.00.
7017.10.00Fused Silica Weighing Bottle
> A ground-glass stoppered bottle of fused quartz for precise sample weighing and storage in analytical chemistry labs. It is calibrated for accurate measurements and is a laboratory glassware of fused quartz. This product falls under tariff item 7017.10.00.
7017.10.00High-Purity Fused Quartz LPCVD Reactor Tube
> A precision fused quartz tube for low-pressure chemical vapor deposition (LPCVD) furnaces in semiconductor wafer processing. It features an ultra-smooth interior to prevent particle contamination during thin film deposition, ensuring high yield in manufacturing. This is laboratory glassware of fused quartz, classified under tariff item 7017.10.00.
7017.10.00Quartz Cuvette for Spectrophotometry
> A precision rectangular cell of fused quartz with optical-grade windows for UV-Vis spectroscopy in analytical labs. It is valued for its transparency to UV light and is a laboratory glassware of fused quartz. This product is classified under tariff item 7017.10.00.
7017.10.00Quartz Microreaction Vessel
> A miniaturized fused silica reactor vessel for microfluidic chemical synthesis in research labs. It is designed for high-pressure microscale reactions and is a laboratory glassware of fused quartz. This product falls under tariff item 7017.10.00.
7017.10.00Semiconductor Furnace Quartz Wafer Boat Holder
> A fused quartz holder designed to support multiple silicon wafer boats within diffusion and oxidation furnaces. It maintains precise alignment and thermal uniformity during semiconductor processing, functioning as laboratory glassware of fused quartz. This product falls under tariff item 7017.10.00.
7017.10.00Silica Quartz Oxidation Boat Holder
> A fused silica holder for wafer boats inserted into oxidation furnaces to grow oxide layers on semiconductor wafers. It is engineered for thermal stability and minimal contamination in high-temperature environments, serving as laboratory glassware of fused quartz. This is classified under tariff item 7017.10.00.
7017.20.00Borosilicate Funnel 100mm Buchner
A 100mm Buchner funnel made of borosilicate glass with a sintered glass disc, designed for vacuum filtration under heat or chemical exposure. Its low linear coefficient of expansion (≤5x10-6 per Kelvin) ensures thermal shock resistance, qualifying it under tariff item 7017.20.00.
7017.20.00Borosilicate Gas Washing Bottle 250ml
A 250ml gas washing bottle with a fritted disc, made of low-expansion borosilicate glass for chemical resistance and thermal stability. It is used in laboratory gas scrubbing processes, meeting the thermal expansion criteria of tariff item 7017.20.00.
7017.20.00Borosilicate Glass Beaker 500ml
A 500ml laboratory beaker made of borosilicate glass (e.g., Pyrex) with a low linear coefficient of expansion not exceeding 5x10-6 per Kelvin, enabling it to withstand thermal shock. It is graduated for approximate measurements and used in general lab heating and mixing tasks.
7017.20.00Borosilicate Mortar and Pestle 100ml
A 100ml borosilicate mortar and pestle set for grinding samples in laboratories, featuring low thermal expansion for resistance to heat during use. It is used in pharmaceutical compounding and meets the coefficient of expansion requirement of tariff item 7017.20.00.
7017.20.00Borosilicate pH Electrode Protector Tube
A protective tube for pH electrodes, made of low-expansion borosilicate glass for chemical immersion in laboratory settings. Its thermal stability and glass composition align with tariff item 7017.20.00, as it is a glass part used in lab equipment.
7017.20.00Borosilicate Test Tube 20x150mm
20x150mm rimless test tubes made of borosilicate glass, designed for heating samples in laboratories. The low-expansion glass ensures resistance to thermal shock, meeting the specifications of tariff item 7017.20.00.
7017.20.00Borosilicate Volumetric Pipette 10ml
A precision 10ml volumetric pipette made of low-expansion borosilicate glass, calibrated for exact liquid dispensing in titrations and pharmaceutical research. Its thermal endurance and glass properties qualify it under tariff item 7017.20.00.
7017.20.00Borosilicate Watch Glass 100mm
A 100mm concave watch glass made of low-expansion borosilicate, used to cover beakers and prevent contamination during experiments. Its thermal shock resistance and glass composition align with tariff item 7017.20.00.
7017.20.00Graduated Borosilicate Cylinder 100ml
A 100ml tall-form measuring cylinder with graduations, made of borosilicate glass for thermal resistance in pharmaceutical dispensing. Its low expansion coefficient meets the criteria of tariff item 7017.20.00.
7017.20.00Low-Expansion Condenser Jacket
A glass jacket for a Liebig condenser, made of borosilicate glass with precise low thermal expansion for efficient cooling in distillation setups. It is a glass part used in laboratory apparatus, qualifying under tariff item 7017.20.00.
7017.20.00Low-Expansion Glass Stirring Rod 10mm x 200mm
A 10mm diameter x 200mm borosilicate stirring rod for mixing in beakers, designed to resist thermal shock due to its low expansion coefficient. It is a basic laboratory tool made of glass, falling under tariff item 7017.20.00.
7017.20.00Low-Expansion Petri Dish 90mm
A 90mm diameter borosilicate petri dish for cell culture, featuring low thermal expansion for autoclaving without cracking. It is used in hygienic and pharmaceutical microbiology labs, meeting the criteria of tariff item 7017.20.00.
7017.20.00Pharmaceutical Weighing Boat Borosilicate
A small V-shaped borosilicate weighing boat for precise pharmaceutical compounding, designed with low expansion for oven drying. Its thermal properties and glass composition qualify it under tariff item 7017.20.00.
7017.20.00Pharma Dropping Bottle Borosilicate 60ml
A 60ml borosilicate dropping bottle with a pipette for reagents, featuring low expansion for sterilization in pharmaceutical labs. It is a glass container for lab use, falling under tariff item 7017.20.00 due to its thermal properties.
7017.20.00Pyrex Erlenmeyer Flask 250ml
A 250ml narrow-neck conical flask made of borosilicate glass with low thermal expansion (≤5x10-6/K), ideal for mixing and heating liquids in labs. Its graduated markings enable accurate measurements, and it meets the criteria of tariff item 7017.20.00.
7017.90.00Borosilicate Evaporating Dish 150ml
Porcelain-like borosilicate dish, 150ml, for evaporating solvents in analytical chemistry labs. It falls under tariff item 7017.90.00 as other laboratory glassware.
7017.90.00Borosilicate Glass Beaker 500ml
A heat-resistant borosilicate glass beaker with 500ml capacity and graduations, used in chemical laboratories for mixing and heating liquids. It falls under tariff item 7017.90.00 as laboratory glassware that is not graduated.
7017.90.00Borosilicate Glass Watch Glass 100mm
Concave circular borosilicate glass cover, 100mm diameter, used in labs to cover beakers or evaporate liquids. It falls under tariff item 7017.90.00 as unspecified laboratory glassware.
7017.90.00Borosilicate Micro Cover Glasses
Thin 22x22mm No. 1 borosilicate cover glasses used to cover specimens on microscope slides. They are precision glassware for laboratories, classified under tariff item 7017.90.00 as other laboratory glassware.
7017.90.00Borosilicate Test Tube Rack Glass 20ml
Durable borosilicate glass test tubes, 20ml capacity, for holding samples in biological or chemical labs. They fall under tariff item 7017.90.00 as other laboratory glassware.
7017.90.00Charged Microscope Slides
Adhesion-treated glass slides with positive charge to hold tissue sections without clips. Despite surface treatment, they remain microscope slides under tariff item 7017.90.00 for lab use.
7017.90.00Clip-On Microscope Slide Holders
76x26mm Clip-Rite™ slides with built-in clip feature. Innovative glass slides classified under tariff item 7017.90.00 as microscope slides.
7017.90.00Fluorescence Microscope Slides
Low-autofluorescence glass slides for fluorescent microscopy applications. Special composition qualifies as microscope slides under tariff item 7017.90.00.
7017.90.00Frosted End Microscope Slides
Glass microscope slides with one frosted end for pencil or ink labeling of specimens. These plain slides without coverslips are specifically designed for laboratory microscopy and fall under tariff item 7017.90.00.
7017.90.00Glass Burette Clamp Replacement
Replacement glass components for burette clamps in titration setups, lab essential. They fall under tariff item 7017.90.00 as other laboratory glassware.
7017.90.00Poly-L-Lysine Coated Cover Glasses
German borosilicate cover glasses coated with poly-L-lysine for protein/cell adhesion. Surface treatment doesn't change classification as micro cover glasses under tariff item 7017.90.00.
7017.90.00Precleaned Glass Microscope Slides
Standard 25x75mm glass slides that are precleaned and ready for immediate use in microscopy. They are classified under tariff item 7017.90.00 as microscope slides, which are essential laboratory glassware for holding specimens.
7017.90.00Round Microscope Cover Slips
12mm diameter circular glass cover slips for specialized microscopy applications like cell culture. These are micro cover glasses under tariff item 7017.90.00, distinct from square formats.
7017.90.00Superfrost Plus Slides
Proprietary frosted slides with aqueous-based adhesive coating for superior specimen adhesion. Branded lab slides classified as microscope slides under tariff item 7017.90.00.
7017.90.00Tissue Culture Micro Slides
Sterile glass slides optimized for cell attachment in tissue culture microscopy. They qualify as microscope slides under tariff item 7017.90.00 despite sterile packaging.