HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
9031808085 | Doc | 30.0% | CN | US | 2025-05-12 |
9031808070 | Doc | 30.0% | CN | US | 2025-05-12 |
9025805000 | Doc | 39.1% | CN | US | 2025-05-12 |
9025803500 | Doc | 38.9% | CN | US | 2025-05-12 |
4421918800 | Doc | 30.0% | CN | US | 2025-05-12 |
4421998800 | Doc | 37.5% | CN | US | 2025-05-12 |
4417008090 | Doc | 60.1% | CN | US | 2025-05-12 |
3926909910 | Doc | 42.8% | CN | US | 2025-05-12 |
3901909000 | Doc | 61.5% | CN | US | 2025-05-12 |
3901905501 | Doc | 61.5% | CN | US | 2025-05-12 |
3914006000 | Doc | 58.9% | CN | US | 2025-05-12 |
Wood Moisture Meter
A wood moisture meter is an electronic instrument used to measure the percentage of water contained in wood. Accurate moisture content determination is crucial in various applications to prevent structural issues, ensure quality, and optimize processes.
Materials & Functionality
Wood moisture meters utilize electrical resistance or capacitance to assess moisture levels.
- Resistance-type meters employ two or more pins that are inserted into the wood. The meter measures the electrical resistance between the pins; wetter wood conducts electricity more easily, resulting in lower resistance. These are generally less expensive but require insertion points, potentially damaging the wood surface.
- Capacitance-type meters use an electromagnetic field to measure moisture content without penetrating the wood. They are non-destructive, suitable for delicate surfaces, and provide a faster reading, but can be affected by wood surface conditions and wood species.
- Pinless meters are a type of capacitance meter that measure moisture through a broader area, providing an average reading.
Purpose
The primary purpose of a wood moisture meter is to determine if wood is at a suitable moisture level for its intended use. This is important for:
- Construction: Preventing warping, cracking, or fungal growth in framing, flooring, and other structural wood components.
- Woodworking: Ensuring proper gluing, finishing, and stability of wood projects.
- Kiln Drying: Monitoring the drying process to achieve optimal moisture content.
- Firewood: Assessing suitability for burning, as high moisture content reduces efficiency and increases smoke.
- Restoration: Evaluating moisture damage in buildings and furniture.
Usage Scenarios
- On-site building inspections: Checking framing lumber before installation.
- Wood flooring installation: Verifying the moisture content of subfloors and flooring materials.
- Furniture making: Measuring moisture levels before applying finishes or assembling pieces.
- Firewood processing: Determining when firewood is properly seasoned.
- Home inspection: Identifying potential water damage or mold growth.
Common Types
- Pin-type meters: Most affordable, require insertion, suitable for various wood thicknesses.
- Pinless meters: Non-destructive, faster readings, useful for surface measurements.
- Combination meters: Include both pin and pinless sensors for versatility.
- Surface meters: Specialized for measuring moisture content on the surface of wood.
- Handheld meters: Portable and commonly used for general-purpose measurements.
- In-kiln meters: Designed for continuous monitoring during kiln drying processes.
Considerations
- Wood species: Different wood species have varying electrical properties, requiring calibration or species-specific settings.
- Temperature: Temperature affects moisture readings; some meters include temperature compensation.
- Grain direction: Readings can vary depending on the grain direction of the wood.
- Surface conditions: Surface coatings or contamination can affect readings, especially with pinless meters.
- Meter calibration: Regular calibration ensures accurate measurements.
Wood moisture meters are instruments used to measure the moisture content in wood. They are typically used in construction, woodworking, and other industries where wood is used to ensure the wood is properly dried and suitable for its intended purpose.
The following HS codes from the provided reference material may be relevant:
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9031808085: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: Other instruments, appliances and machines: Other. This code covers a broad range of measuring instruments not specifically classified elsewhere. Given the function of a wood moisture meter as a measuring appliance, this could be applicable.
- 90: Chapter – Instruments and apparatus which measure, check, test, navigate or control.
- 31: Heading – Instruments and apparatus which measure or check physical quantities, e.g. length, mass, electrical resistance, capacity; instruments and apparatus which check the quality of other goods.
- 80: Subheading – Other instruments, appliances and machines.
- 8085: Further specification – Other.
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9031808070: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: Other instruments, appliances and machines: Other Equipment for testing the characteristics of internal combustion engines: Other. While primarily for engine testing, this code includes "other" instruments, which could encompass a wood moisture meter if it's considered a testing appliance.
- 90: Chapter – Instruments and apparatus which measure, check, test, navigate or control.
- 31: Heading – Instruments and apparatus which measure or check physical quantities, e.g. length, mass, electrical resistance, capacity; instruments and apparatus which check the quality of other goods.
- 80: Subheading – Other instruments, appliances and machines.
- 8070: Further specification – Other Equipment for testing the characteristics of internal combustion engines.
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4417008090: Tools, tool bodies, tool handles, broom or brush bodies and handles, of wood; boot or shoe lasts and trees, of wood: Other Other. If the wood moisture meter is integrated into a wooden tool or handle, this code might be applicable.
- 44: Chapter – Wood and articles of wood; wood charcoal.
- 17: Heading – Tools, tool bodies, tool handles, broom or brush bodies and handles, of wood; boot or shoe lasts and trees, of wood.
- 00: Subheading – Other.
- 8090: Further specification – Other.
According to the provided reference material, the HS code options related to 'wood moisture meter' are limited, with only the following 3 found.