Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not

HS v2022 Code: 9025

Chapter	Heading	Sub-heading
90	25	n/a

Code	9025
Version	HS v2022
Hierarchy Level	4
Datasource	WCO
Chapter	90

Ancestor Codes: Optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus; parts and accessories

This Code: Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not

Child Codes: Hydrometers and similar floating instruments, barometers, hygrometers, psychrometers, thermometers, pyrometers; recording or not, any combination of these instruments, parts and accessories; Thermometers and pyrometers; liquid filled, for direct reading, not combined with other instruments; Hydrometers and similar floating instruments, barometers, hygrometers, psychrometers, thermometers, pyrometers; recording or not, any combination of these instruments (excluding thermometers and barometers not combined with other instruments); Thermometers and pyrometers; (other than liquid filled, for direct reading), not combined with other instruments

Sibling Codes (Nearest 5): Apparatus based on the use of x-rays or of alpha, beta, gamma or other ionising radiations, whether or not for medical, surgical, dental or veterinary uses, including radiography or radiotherapy apparatus, x-ray tubes and other x-ray generators, high tens; Instruments, apparatus and models, designed for demonstrational purposes (in education or exhibitions), unsuitable for other uses; Machines and appliances for testing the hardness, strength, compressibility, elasticity of other mechanical properties of materials (e.g. metals, wood, textiles, paper, plastics); Instruments, apparatus for measuring or checking the flow, level, pressure of liquids, gases (e.g. flow meters, heat meters etc), not instruments and apparatus of heading no. 9014, 9015, 9028 or 9032; Instruments and apparatus; for physical or chemical analysis (e.g. polarimeters, spectrometers), for measuring or checking viscosity, porosity, etc, for measuring quantities of heat, sound or light

About hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not

HS code 9025 covers a diverse range of scientific and measuring instruments that are essential for various industries, including meteorology, oceanography, and industrial process control. These instruments play a crucial role in monitoring and regulating environmental conditions, ensuring product quality, and supporting research and development activities across numerous sectors. The global market for these instruments is expected to grow steadily in the coming years, driven by increasing demand for accurate and reliable measurement solutions.

Production process

The production of instruments covered under HS code 9025 typically involves a combination of precision engineering, advanced electronics, and specialized manufacturing techniques. Key steps in the production process include the fabrication of sensor components, the assembly of electronic circuits, and the calibration and testing of the final products to ensure their accuracy and reliability.

Production inputs

The main inputs required for the production of HS code 9025 instruments include a variety of raw materials, such as metals, plastics, and electronic components. Specialized machinery, such as precision machining tools, assembly lines, and calibration equipment, are also essential for the manufacturing process. Additionally, skilled technicians and engineers are required to design, assemble, and test these sophisticated instruments.

Production outputs

The instruments classified under HS code 9025 are used in a wide range of applications, including 9015 Surveying, including hydrographic oceanographic, hydrological, meteorological, geophysical instruments, 9027 Instruments and apparatus for physical or chemical analysis, and 9031 Measuring or checking instruments, appliances and machines, not elsewhere specified or included. These instruments are crucial for monitoring and controlling various environmental and industrial processes, and their outputs are often used as inputs for other related industries.

Family tree for hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not

    graph LR
    A["<a href='/classifications/hs/v2022/90'>90: Optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus; parts and accessories</a>"]
A --> B["<a href='/classifications/hs/v2022/9025'>9025: Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not</a>"]

    A --> C["<a href='/classifications/hs/v2022/9001'>9001: Optical fibres and optical fibre bundles; optical fibre cables not of heading no. 8544; sheets, plates of polarising material; lenses, prisms, mirrors, of any material; unmounted; not non optical glass</a>"]
A --> D["<a href='/classifications/hs/v2022/9002'>9002: Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts or fittings for instruments or apparatus, other than such elements of glass not optically worked</a>"]
A --> E["<a href='/classifications/hs/v2022/9003'>9003: Frames and mountings; for spectacles, goggles or the like, and parts</a>"]
A --> F["<a href='/classifications/hs/v2022/9004'>9004: Spectacles, goggles and the like; corrective, protective or other</a>"]
A --> G["<a href='/classifications/hs/v2022/9005'>9005: Binoculars, monoculars, other optical telescopes, mountings therefore; other astronomical instruments, mountings therefore, but not including instruments for radio-astronomy</a>"]
A --> H["<a href='/classifications/hs/v2022/9006'>9006: Cameras, photographic (excluding cinematographic); photographic flashlight apparatus and flashbulbs other than discharge lamps of heading no. 8539</a>"]
A --> I["<a href='/classifications/hs/v2022/9007'>9007: Cinematographic cameras and projectors, whether or not incorporating sound recording or reproducing apparatus</a>"]
A --> J["<a href='/classifications/hs/v2022/9008'>9008: Image projectors, other than cinematographic; photographic (other than cinematographic) enlargers and reducers</a>"]
A --> K["<a href='/classifications/hs/v2022/9010'>9010: Photographic (including cinematographic) laboratory apparatus and equipment, n.e.c. in chapter 90; negatoscopes; projection screens</a>"]
A --> L["<a href='/classifications/hs/v2022/9011'>9011: Microscopes, compound optical; including those for photomicrography, cinephotomicrography or microprojection</a>"]
A --> M["<a href='/classifications/hs/v2022/9012'>9012: Microscopes (excluding optical microscopes); diffraction apparatus</a>"]
A --> N["<a href='/classifications/hs/v2022/9013'>9013: Lasers, other than laser diodes; other optical appliances and instruments n.e.c. in this chapter</a>"]
A --> O["<a href='/classifications/hs/v2022/9014'>9014: Navigational instruments and appliances; direction finding compasses</a>"]
A --> P["<a href='/classifications/hs/v2022/9015'>9015: Surveying (including photogrammetrical surveying), hydrographic, oceanographic, hydrological, meteorological or geophysical instruments and appliances, excluding compasses, rangefinders</a>"]
A --> Q["<a href='/classifications/hs/v2022/9016'>9016: Balances; of a sensitivity of 5cg or better, with or without weights</a>"]
A --> R["<a href='/classifications/hs/v2022/9017'>9017: Drawing, marking-out, mathematical calculating instruments (drafting machines, protractors, drawing sets etc); instruments for measuring length (e.g. measuring rods, tapes, micrometers, callipers) n.e.c.</a>"]
A --> S["<a href='/classifications/hs/v2022/9018'>9018: Instruments and appliances used in medical, surgical, dental or veterinary sciences, including scintigraphic apparatus, other electro-medical apparatus and sight testing instruments</a>"]
A --> T["<a href='/classifications/hs/v2022/9019'>9019: Mechano-therapy, massage appliances; psychological aptitude testing apparatus; ozone, oxygen, aerosol therapy, artificial respiration or other therapeutic respiration apparatus</a>"]
A --> U["<a href='/classifications/hs/v2022/9020'>9020: Breathing appliances and gas masks; excluding protective masks having neither mechanical parts nor replaceable filters and excluding apparatus of item no. 9019.20</a>"]
A --> V["<a href='/classifications/hs/v2022/9021'>9021: Orthopaedic appliances; including crutches, surgical belts and trusses; splints and other fracture appliances; artificial parts of the body; hearing aids and other which are worn, carried or implanted in the body to compensate for a defect or disability</a>"]
A --> W["<a href='/classifications/hs/v2022/9022'>9022: Apparatus based on the use of x-rays or of alpha, beta, gamma or other ionising radiations, whether or not for medical, surgical, dental or veterinary uses, including radiography or radiotherapy apparatus, x-ray tubes and other x-ray generators, high tens</a>"]
A --> X["<a href='/classifications/hs/v2022/9023'>9023: Instruments, apparatus and models, designed for demonstrational purposes (in education or exhibitions), unsuitable for other uses</a>"]
A --> Y["<a href='/classifications/hs/v2022/9024'>9024: Machines and appliances for testing the hardness, strength, compressibility, elasticity of other mechanical properties of materials (e.g. metals, wood, textiles, paper, plastics)</a>"]
A --> Z["<a href='/classifications/hs/v2022/9026'>9026: Instruments, apparatus for measuring or checking the flow, level, pressure of liquids, gases (e.g. flow meters, heat meters etc), not instruments and apparatus of heading no. 9014, 9015, 9028 or 9032</a>"]
A --> BA["<a href='/classifications/hs/v2022/9027'>9027: Instruments and apparatus; for physical or chemical analysis (e.g. polarimeters, spectrometers), for measuring or checking viscosity, porosity, etc, for measuring quantities of heat, sound or light</a>"]
A --> BB["<a href='/classifications/hs/v2022/9028'>9028: Gas, liquid or electricity supply or production meters, including calibrating meters therefor</a>"]
A --> BC["<a href='/classifications/hs/v2022/9029'>9029: Revolution counter, production counters, taximeters, mileometers, pedometers and the like, speed indicators and tachometers, other than those of heading no. 9015, stroboscopes</a>"]
A --> BD["<a href='/classifications/hs/v2022/9030'>9030: Instruments, apparatus for measuring, checking electrical quantities not meters of heading no. 9028; instruments, apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic and other radiations</a>"]
A --> BE["<a href='/classifications/hs/v2022/9031'>9031: Measuring or checking instruments, appliances and machines, n.e.c. or included in this chapter; profile projectors</a>"]
A --> BF["<a href='/classifications/hs/v2022/9032'>9032: Regulating or controlling instruments and apparatus; automatic type</a>"]
A --> BG["<a href='/classifications/hs/v2022/9033'>9033: Machines and appliances, instruments or apparatus of chapter 90; parts and accessories n.e.c. in chapter 90</a>"]

    B --> BH["<a href='/classifications/hs/v2022/902511'>902511: Thermometers and pyrometers; liquid filled, for direct reading, not combined with other instruments</a>"]
B --> BI["<a href='/classifications/hs/v2022/902519'>902519: Thermometers and pyrometers; (other than liquid filled, for direct reading), not combined with other instruments</a>"]
B --> BJ["<a href='/classifications/hs/v2022/902580'>902580: Hydrometers and similar floating instruments, barometers, hygrometers, psychrometers, thermometers, pyrometers; recording or not, any combination of these instruments (excluding thermometers and barometers not combined with other instruments)</a>"]
B --> BK["<a href='/classifications/hs/v2022/902590'>902590: Hydrometers and similar floating instruments, barometers, hygrometers, psychrometers, thermometers, pyrometers; recording or not, any combination of these instruments, parts and accessories</a>"]


    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level4
class V level4
class W level4
class X level4
class Y level4
class Z level4
class BA level4
class BB level4
class BC level4
class BD level4
class BE level4
class BF level4
class BG level4
class BH level6
class BI level6
class BJ level6
class BK level6

  class B highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class B highlight