Glass; float glass and surface ground or polished glass, in sheets, non-wired, coloured throughout the mass (body tinted), opacified, flashed or merely surface ground

HS v2017 Code: 700521

About glass; float glass and surface ground or polished glass, in sheets, non-wired, coloured throughout the mass (body tinted), opacified, flashed or merely surface ground

HS code 700521 covers a specific type of glass product known as float glass. This type of glass is widely used in various industries, including construction, automotive, and furniture manufacturing. Float glass is characterized by its high quality, uniform thickness, and smooth surface, making it a popular choice for applications where clarity and precision are essential.

Production process

The production of float glass involves a specialized process. The raw materials, such as sand, limestone, and soda ash, are melted in a furnace at high temperatures. The molten glass is then poured onto a large, flat surface, where it spreads and forms a smooth, uniform layer. As the glass cools, it is carefully controlled to ensure a consistent thickness and surface quality. The final product is then cut and processed as needed for various applications.

Production inputs

The main inputs required for the production of float glass include raw materials such as sand, limestone, and soda ash. Additionally, the process requires specialized equipment, including furnaces, float tanks, and cutting and polishing machinery. Energy sources, such as natural gas or electricity, are also essential for the high-temperature melting and processing of the glass.

Production outputs

The primary output of HS code 700521 is float glass in sheets, which can be further processed and used in a variety of applications. This type of glass is commonly used in 700600 Glass; all kinds, including window glass, unworked, 870321 Motor cars and other motor vehicles principally designed for the transport of persons, including station wagons and racing cars, with spark-ignition internal combustion reciprocating piston engine of a cylinder capacity not exceeding 1,000 cc, and 940510 Chandeliers and other electric ceiling or wall lighting fittings, excluding those of a kind used for lighting public open spaces or thoroughfares, among others.

Revisions to 700521

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 700521. The most recent 1 version of this code (700521) is in the HS v2022 system:

This page shows a legacy version of code 700521 ( HS v2017).

Family tree for glass; float glass and surface ground or polished glass, in sheets, non-wired, coloured throughout the mass (body tinted), opacified, flashed or merely surface ground

    graph LR
    A["<a href='/classifications/hs/v2017/70'>70: Glass and glassware</a>"]
A --> B["<a href='/classifications/hs/v2017/7005'>7005: Glass; float glass and surface ground or polished glass, in sheets, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked</a>"]
B --> C["<a href='/classifications/hs/v2017/700521'>700521: Glass; float glass and surface ground or polished glass, in sheets, non-wired, coloured throughout the mass (body tinted), opacified, flashed or merely surface ground</a>"]

    B --> D["<a href='/classifications/hs/v2017/700510'>700510: Glass; float glass and surface ground or polished glass, in sheets, non-wired, having an absorbent reflecting or non-reflecting layer</a>"]
B --> E["<a href='/classifications/hs/v2017/700529'>700529: Glass; float glass and surface ground or polished glass, in sheets, non-wired, (other than coloured throughout the mass (body tinted), opacified, flashed or merely surface ground)</a>"]
B --> F["<a href='/classifications/hs/v2017/700530'>700530: Glass; float glass and surface ground or polished glass, in sheets, wired glass, whether or not having an absorbent or reflecting layer</a>"]

    

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