Glass; unworked, tubes, of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6), (or 0.000005) per Kelvin within a temperature range of 0-300 degrees C

HS v2022 Code: 700232

Chapter	Heading	Sub-heading
70	02	32

Code	700232
Version	HS v2022
Hierarchy Level	6
Datasource	WCO
Chapter	70
Heading	7002

Ancestor Codes: Glass and glassware; Glass in balls (other than microspheres of heading no. 7018), rods or tubes, unworked

This Code: Glass; unworked, tubes, of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6), (or 0.000005) per Kelvin within a temperature range of 0-300 degrees C

Sibling Codes (Nearest 4): Glass; unworked, in balls (other than microspheres of heading no. 7018); Glass; unworked, in rods; Glass; unworked, in tubes, of fused quartz or other fused silica; Glass; unworked, in tubes, other than of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6, (or 0.000005) ) per Kelvin within a temperature range of 0-300 degrees C, not fused quartz or other fused silica

About glass; unworked, tubes, of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6), (or 0.000005) per kelvin within a temperature range of 0-300 degrees c

HS code 700232 covers the import and export of unworked glass tubes with a specific linear coefficient of expansion. This type of glass is highly valued for its thermal stability, making it suitable for a variety of industrial and scientific applications. The global trade in this specialized glass product plays a crucial role in supporting industries such as 701931 Vacuum flasks and other vacuum vessels, 902780 Instruments and apparatus for physical or chemical analysis, and 851440 (Photographic (including cinematographic) laboratories; apparatus and equipment for).

Production process

The production of the glass tubes described by HS code 700232 involves a multi-step process. First, the raw materials, including high-purity silica sand, are carefully selected and measured. These materials are then melted in a specialized furnace, where the temperature is precisely controlled to ensure the desired linear coefficient of expansion. The molten glass is then formed into tubes through a process of drawing or blowing, depending on the specific requirements of the end product.

Production inputs

The main inputs required for the production of the glass tubes covered by HS code 700232 include high-purity silica sand, specialized furnaces capable of maintaining precise temperature control, and skilled labor to oversee the production process. Additionally, the manufacturing facilities may require specialized equipment for the drawing or blowing of the glass tubes to the desired specifications.

Production outputs

The glass tubes produced under HS code 700232 are primarily used in a variety of industrial and scientific applications that require thermal stability, such as 701931 Vacuum flasks and other vacuum vessels, 902780 Instruments and apparatus for physical or chemical analysis, and 851440 (Photographic (including cinematographic) laboratories; apparatus and equipment for). These glass tubes may also be further processed or incorporated into other products, such as 701939 Vacuum flasks and other vacuum vessels; parts thereof, other than glass inners.

Revisions to 700232

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 700232. The most recent 1 version of this code (700232) is in the HS v2022 system (this version):

This page shows the most recent version of code 700232.

Older versions

HS v2017:
- 700232: Glass; unworked, tubes, of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6), (or 0.000005) per Kelvin within a temperature range of 0-300 degrees C

Family tree for glass; unworked, tubes, of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6), (or 0.000005) per kelvin within a temperature range of 0-300 degrees c

    graph LR
    A["<a href='/classifications/hs/v2022/70'>70: Glass and glassware</a>"]
A --> B["<a href='/classifications/hs/v2022/7002'>7002: Glass in balls (other than microspheres of heading no. 7018), rods or tubes, unworked</a>"]
B --> C["<a href='/classifications/hs/v2022/700232'>700232: Glass; unworked, tubes, of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6), (or 0.000005) per Kelvin within a temperature range of 0-300 degrees C</a>"]

    B --> D["<a href='/classifications/hs/v2022/700210'>700210: Glass; unworked, in balls (other than microspheres of heading no. 7018)</a>"]
B --> E["<a href='/classifications/hs/v2022/700220'>700220: Glass; unworked, in rods</a>"]
B --> F["<a href='/classifications/hs/v2022/700231'>700231: Glass; unworked, in tubes, of fused quartz or other fused silica</a>"]
B --> G["<a href='/classifications/hs/v2022/700239'>700239: Glass; unworked, in tubes, other than of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6, (or 0.000005) ) per Kelvin within a temperature range of 0-300 degrees C, not fused quartz or other fused silica</a>"]

    

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