Find HS Code and trade information for record pressure town

Barograph

A barograph, also known as a recording barometer, is an instrument used to record atmospheric pressure over time. It provides a visual representation of pressure changes, crucial for weather forecasting and various scientific applications.

Material:

• Case: Typically constructed from wood, metal (often brass or aluminum), or plastic, providing protection for the internal mechanisms.
• Mechanism: Employs an aneroid cell – a flexible, corrugated metal box partially evacuated of air. This cell expands and contracts with changes in atmospheric pressure.
• Recording Pen/Stylus: Often made of metal alloy, designed to mark a continuous line on a recording surface.
• Recording Surface: Historically, smoked paper wrapped around a rotating drum. Modern barographs utilize chart paper or digital storage.
• Drive Mechanism: A clockwork motor or electronic system rotates the drum/advances the recording medium at a consistent rate.

Purpose:

• Weather Forecasting: Detecting rising or falling pressure is fundamental to predicting weather changes. Falling pressure generally indicates approaching storms, while rising pressure suggests improving conditions.
• Aviation: Pilots use barographs to track altitude changes and monitor atmospheric conditions during flight.
• Meteorology: Researchers employ barographs to collect data for weather models and climate studies.
• Scientific Research: Used in various fields, including geophysics and environmental monitoring, to analyze atmospheric trends.

Function:

The barograph functions by converting changes in atmospheric pressure into a mechanical movement that is recorded on a chart.

1. Pressure Sensing: The aneroid cell responds to variations in atmospheric pressure.
2. Mechanical Amplification: A system of levers magnifies the small movements of the aneroid cell.
3. Recording: The amplified movement is transferred to a pen or stylus, which traces a line on the recording surface as it rotates. The position of the pen corresponds to the atmospheric pressure at that time.

Usage Scenarios:

• Weather Stations: Continuously monitoring and recording pressure trends.
• Aircraft: Tracking altitude and pressure during flights.
• Laboratories: Collecting precise pressure data for experiments.
• Ships: Monitoring atmospheric conditions at sea.
• High-Altitude Research: Recording pressure variations in mountainous regions or using weather balloons.

Common Types:

• Mechanical Barographs: Traditional type utilizing a clockwork mechanism and smoked paper or chart paper. Require manual chart replacement and calibration.
• Digital Barographs: Employ electronic pressure sensors and data logging systems. Offer greater accuracy, data storage capacity, and remote data access.
• Portable Barographs: Compact, self-contained units for field use.
• Marine Barographs: Designed for use on ships, often incorporating features to compensate for motion and humidity.
• Aircraft Barographs: Specifically designed for aviation applications, meeting stringent regulatory requirements.

The declared goods, “record pressure town”, appear to relate to apparatus for measuring, recording, or otherwise indicating intervals of time. Here's a breakdown of potentially relevant HS codes based on the provided information:

• 9106100000: This HS code covers “Time of day recording apparatus and apparatus for measuring, recording or otherwise indicating intervals of time, with clock or watch movement or with synchronous motor (for example, time registers, time-recorders): Time registers; time-recorders”. This is applicable if the “record pressure town” functions as a device to specifically record time, similar to a time register or time-recorder. The tariff details include a base duty of 36¢ each, plus 5.6% and an additional 2¢ per jewel, with a 25.0% additional tariff, increasing to 30.0% after April 2, 2025. The total tariff rate is 36¢ each + 5.6% + 2¢/jewel + 55.0%.

• 9106906500: This HS code covers “Time of day recording apparatus and apparatus for measuring, recording or otherwise indicating intervals of time, with clock or watch movement or with synchronous motor (for example, time registers, time-recorders): Other: Other: Apparatus for measuring, recording, or otherwise indicating intervals of time, with clock or watch movements, battery powered: Other”. This code is relevant if the “record pressure town” is a time-measuring device powered by batteries and doesn't fall under the more specific category of time registers or time-recorders. The tariff details include a base duty of 15¢ each, plus 2.3% and an additional 0.8¢ per jewel, with a 25.0% additional tariff, increasing to 30.0% after April 2, 2025. The total tariff rate is 15¢ each + 2.3% + 0.8¢/jewel + 55.0%.

According to the provided reference material, the HS code options related to 'record pressure town' are limited, with only the following 2 found.

It is important to note that the presence of “jewels” within the apparatus will affect the tariff calculation for both HS codes. Please verify the material composition of the “record pressure town” to determine if any jewels are present.