Of other glass having a linear coefficient of expansion not exceeding 5x10-6 per Kelvin within a temperature range of 0°C to 300°C
Glass envelopes (including bulbs and tubes), open, and glass parts thereof, without fittings, for electric lamps and light sources, cathode-ray tubes or the like. > Other glassware: > Of other glass having a linear coefficient of expansion not exceeding 5x10-6 per Kelvin within a temperature range of 0°C to 300°C > Of other glass having a linear coefficient of expansion not exceeding 5x10-6 per Kelvin within a temperature range of 0°C to 300°C
Duty Rate (from China)
Products classified under Tariff item 7017.20.00
Borosilicate 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.
Borosilicate 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.
Borosilicate 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.
Borosilicate 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.
Borosilicate 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.
Borosilicate 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.
Borosilicate 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.
Borosilicate 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.
Graduated 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.
Low-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.
Low-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.
Low-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.
Pharmaceutical 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.
Pharma 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.
Pyrex 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.