Instruments + apparatus for measuring or checking the flow,level,pressure or other variables of liquids or gases(e.g.,flow meters,level gauges,manometers,heat meters),excluding instrument+apparatus of heading No.90.14,90.15,90.28,90.32

Family tree for instruments + apparatus for measuring or checking the flow,level,pressure or other variables of liquids or gases(e.g.,flow meters,level gauges,manometers,heat meters),excluding instrument+apparatus of heading no.90.14,90.15,90.28,90.32

    graph LR
    A["<a href='/classifications/hs/v1996/90'>90: Optical, photo, cine, meas, checking,  precision, etc</a>"]
A --> B["<a href='/classifications/hs/v1996/9026'>9026: Instruments + apparatus for measuring or checking the flow,level,pressure or other variables of liquids or gases(e.g.,flow meters,level gauges,manometers,heat meters),excluding instrument+apparatus of heading No.90.14,90.15,90.28,90.32</a>"]

    A --> C["<a href='/classifications/hs/v1996/9001'>9001: Optical fibres and optical fibre bundles; optical fibre cables other than those of heading No.85.44; sheets and plates of polarising material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any materia</a>"]
A --> D["<a href='/classifications/hs/v1996/9002'>9002: Lenses, prisms, mirrors and other optical elements, of any material, mounted, being parts of or fittings for instruments or apparatus, other than such elements of glass not optically worked.</a>"]
A --> E["<a href='/classifications/hs/v1996/9003'>9003: Frames and mountings for spectacles, goggles or the like, and parts thereof.</a>"]
A --> F["<a href='/classifications/hs/v1996/9004'>9004: Spectacles, goggles and the like, corrective, protective or other.</a>"]
A --> G["<a href='/classifications/hs/v1996/9005'>9005: Binoculars, monoculars, other optical telescopes, and mountings therefor; other astronomical instruments and mountings therefor, but not including instruments for radio-astronomy.</a>"]
A --> H["<a href='/classifications/hs/v1996/9006'>9006: Photographic (other than cinematographic) cameras; photographic flashlight apparatus and flashbulbs other than discharge lamps of heading No. 85.39.</a>"]
A --> I["<a href='/classifications/hs/v1996/9007'>9007: Cinematographic cameras and projectors, whether or not incorporating sound recording or reproducing apparatus.</a>"]
A --> J["<a href='/classifications/hs/v1996/9008'>9008: Image projectors, other than cinematographic; photographic (other than cinematographic) enlargers and reducers.</a>"]
A --> K["<a href='/classifications/hs/v1996/9009'>9009: Photo-copying apparatus incorporating an optical system or of the contact type and thermo-copying apparatus.</a>"]
A --> L["<a href='/classifications/hs/v1996/9010'>9010: Apparatus and equipment for photographic (including cinematographic) laboratories (including apparatus for the projection or drawing of circuit patterns on sensitised semiconductor materials), not specified or included elsewhere in this</a>"]
A --> M["<a href='/classifications/hs/v1996/9011'>9011: Compound optical microscopes, including those for photomicrography, cinephotomicrography or microprojection.</a>"]
A --> N["<a href='/classifications/hs/v1996/9012'>9012: Microscopes other than optical microscopes; diffraction apparatus.</a>"]
A --> O["<a href='/classifications/hs/v1996/9013'>9013: Liquid crystal devices not constituting articles provided for more specifically in other headings; lasers, other than laser diodes; other optical appliances and instruments, not specified or included elsewhere in this Chapt</a>"]
A --> P["<a href='/classifications/hs/v1996/9014'>9014: Direction finding compasses; other navigational instruments and appliances.</a>"]
A --> Q["<a href='/classifications/hs/v1996/9015'>9015: Surveying (including photogrammetrical surveying), hydrographic, oceanographic, hydrological, meteorological or geophysical instruments and appliances, excluding compasses; rangefinders.</a>"]
A --> R["<a href='/classifications/hs/v1996/9016'>9016: Balances of a sensitivity of 5 cg or better, with or without weights.</a>"]
A --> S["<a href='/classifications/hs/v1996/9017'>9017: Drawing, marking-out or mathematical calculating instruments (e.g., drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (e.g., measuringrods a</a>"]
A --> T["<a href='/classifications/hs/v1996/9018'>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 --> U["<a href='/classifications/hs/v1996/9019'>9019: Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus.</a>"]
A --> V["<a href='/classifications/hs/v1996/9020'>9020: Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters.</a>"]
A --> W["<a href='/classifications/hs/v1996/9021'>9021: Orthopaedic appliances, including crutches, surgical belts and trusses; splints and other fracture appliances; artificial parts of the body; hearing aids and other appliances which are worn or carried, or implanted in the body, to compe</a>"]
A --> X["<a href='/classifications/hs/v1996/9022'>9022: Apparatus based on the use of X-rays or of alpha, beta or gamma 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 t</a>"]
A --> Y["<a href='/classifications/hs/v1996/9023'>9023: Instruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other uses.</a>"]
A --> Z["<a href='/classifications/hs/v1996/9024'>9024: Machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics).</a>"]
A --> BA["<a href='/classifications/hs/v1996/9025'>9025: Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments.</a>"]
A --> BB["<a href='/classifications/hs/v1996/9027'>9027: Instruments + apparatus for physical or chemical analysis (e.g., polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface</a>"]
A --> BC["<a href='/classifications/hs/v1996/9028'>9028: Gas, liquid or electricity supply or production meters, including calibrating meters therefor.</a>"]
A --> BD["<a href='/classifications/hs/v1996/9029'>9029: Revolution counters, production counters, taximeters, mileometers, pedometers and the like; speed indicators and tachometers, other than those of heading No. 90.14 or 90.15; stroboscopes.</a>"]
A --> BE["<a href='/classifications/hs/v1996/9030'>9030: Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of heading No.90.28; instruments and apparatus for measuring or detecting alpha, beta, gamma, X-ray,</a>"]
A --> BF["<a href='/classifications/hs/v1996/9031'>9031: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this Chapter; profile projectors.</a>"]
A --> BG["<a href='/classifications/hs/v1996/9032'>9032: Automatic regulating or controlling instruments and apparatus.</a>"]
A --> BH["<a href='/classifications/hs/v1996/9033'>9033: Parts and accessories (not specified or included elsewhere in this Chapter) for machines, appliances, instruments or apparatus of Chapter 90.</a>"]

    B --> BI["<a href='/classifications/hs/v1996/902610'>902610: For measuring or checking the flow or level of liquids</a>"]
B --> BJ["<a href='/classifications/hs/v1996/902620'>902620: For measuring or checking pressure</a>"]
B --> BK["<a href='/classifications/hs/v1996/902680'>902680: Other instruments or apparatus</a>"]
B --> BL["<a href='/classifications/hs/v1996/902690'>902690: 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 level4
class BI level6
class BJ level6
class BK level6
class BL 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