SI Digital Framework
CLASSIFICATION OF SERVICES
Version: 1.0 Beta , last update: 2025-02-10
Metrology Area: Length KCDB ↗
TTL file : L.ttl
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ALL
CURRENTLY ASSIGNED

L/Laser Laser frequencies

L/Laser-1 Radiations of the mise en pratique
L/Laser-1.1 Laser radiations
L/Laser-1.1.1 Frequency stabilized laser
L/Laser-1.2 Lamp radiations
L/Laser-1.2.1 Spectral lamp

L/DimMet Dimensional metrology

L/DimMet-2 Linear dimensions
L/DimMet-2.1 Length instruments
L/DimMet-2.1.1 (Laser, length) interferometer (system, optics, refractometer)
L/DimMet-2.1.2 EDM instrument
L/DimMet-2.1.3 One-dimension measuring machine
L/DimMet-2.1.4 Height measuring instrument
L/DimMet-2.1.5 One-dimension displacement transducer or actuator (LVDT, PZT, etc.)
L/DimMet-2.1.6 Gauge block comparators
L/DimMet-2.1.7 Dial-indicator tester
L/DimMet-2.2 End standards
L/DimMet-2.2.1 Gauge block
L/DimMet-2.2.2 Length bar (long gauge block)
L/DimMet-2.2.3 Plane or thread micrometer setting rod
L/DimMet-2.2.4 Step gauge
L/DimMet-2.2.5 Gap gauge
L/DimMet-2.2.6 Feeler (thickness) gauge
L/DimMet-2.3 Line standards
L/DimMet-2.3.1 Precision line scale
L/DimMet-2.3.2 Stage micrometer
L/DimMet-2.3.3 Grid plate
L/DimMet-2.3.4 One-dimension grating
L/DimMet-2.3.5 Two-dimension grating
L/DimMet-2.3.6 Linewidth standard
L/DimMet-2.3.7 (Surveyor, engineer, pi) tape, (geodetic) wire
L/DimMet-2.3.8 Surveyor levelling rod
L/DimMet-2.3.9 Engineer or machinist scale, steel
L/DimMet-2.4 Diameter standards
L/DimMet-2.4.1 External cylinder (plug, piston, pin, wire)
L/DimMet-2.4.2 Internal cylinder (ring)
L/DimMet-2.4.3 Sphere (ball)
L/DimMet-2.5 Standards of 1D Dimensions
L/DimMet-2.5.1 Standard of 1D point-to-point dimensions
L/DimMet-3 Angle
L/DimMet-3.1 Angle by circle dividers
L/DimMet-3.1.1 Optical polygon
L/DimMet-3.1.2 Index table
L/DimMet-3.1.3 Rotary table, rotary encoder scale
L/DimMet-3.2 Small-angle generators
L/DimMet-3.2.1 Sine bar or table
L/DimMet-3.3 Angle instruments
L/DimMet-3.3.1 Autocollimator
L/DimMet-3.3.2 Electronic level
L/DimMet-3.3.3 Clinometer
L/DimMet-3.3.4 Spirit (bubble) level
L/DimMet-3.3.5 Theodolite
L/DimMet-3.3.6 (Bevel) protractor
L/DimMet-3.3.7 Squareness tester
L/DimMet-3.4 Angle artefacts
L/DimMet-3.4.1 Angle block
L/DimMet-3.4.2 90° (steel, granite, try) square
L/DimMet-3.4.3 90° cylinder square
L/DimMet-3.4.4 Cone (taper) gauge
L/DimMet-3.5 Angle prisms
L/DimMet-3.5.1 Optical square (pentaprism)
L/DimMet-3.5.2 Retroreflection (cube-corner, cat-eye) prism
L/DimMet-4 Form
L/DimMet-4.1 Flatness standards
L/DimMet-4.1.1 Optical flat
L/DimMet-4.1.2 Optical parallel or wedge
L/DimMet-4.1.3 Surface plate
L/DimMet-4.2 Roundness standards
L/DimMet-4.2.1 External cylinder
L/DimMet-4.2.2 Internal cylinder
L/DimMet-4.2.3 Sphere (hemisphere)
L/DimMet-4.2.4 Magnification standard (e.g. flick standard)
L/DimMet-4.3 Straightness standards
L/DimMet-4.3.1 Straight edge
L/DimMet-4.3.2 Cylindrical straightness standard
L/DimMet-4.3.3 Straightness of guideway
L/DimMet-4.4 Cylindricity standards
L/DimMet-4.4.1 External cylinder
L/DimMet-4.4.2 Internal cylinder
L/DimMet-4.5 Optical standards
L/DimMet-4.5.1 Lens, radius standards
L/DimMet-5 Complex geometry
L/DimMet-5.1 Surface texture standards
L/DimMet-5.1.1 (Groove) depth (step height) standard
L/DimMet-5.1.2 Tip-condition standard
L/DimMet-5.1.3 Spacing standard
L/DimMet-5.1.4 Roughness standard
L/DimMet-5.1.5 Profile coordinate standard
L/DimMet-5.1.6 Soft gauge standard
L/DimMet-5.2 Screw standards
L/DimMet-5.2.1 Thread plug, plain
L/DimMet-5.2.2 Thread plug, tapered
L/DimMet-5.2.3 Thread ring, plain
L/DimMet-5.2.4 Thread ring, tapered
L/DimMet-5.2.5 Internal API screw thread gauge
L/DimMet-5.2.6 External API screw thread gauge
L/DimMet-5.3 Gear standards
L/DimMet-5.3.1 Involute gear
L/DimMet-5.3.2 Bevel gear
L/DimMet-5.3.3 Gear pitch master
L/DimMet-5.3.4 Gear lead master
L/DimMet-5.3.5 Gear involute master
L/DimMet-5.4 Coordinate Measuring Machine (CMM) artefacts
L/DimMet-5.4.1 Ball (hole, bore) plate
L/DimMet-5.4.2 Ball bar
L/DimMet-5.4.3 Large CMM artefact
L/DimMet-5.4.4 Reference software
L/DimMet-5.4.5 Test circle for imaging probing systems
L/DimMet-5.5 Two-dimension and three-dimension instruments
L/DimMet-5.5.1 Measuring projector
L/DimMet-5.5.2 Measuring microscope
L/DimMet-5.5.3 CMM
L/DimMet-5.5.4 Laser tracking measuring system
L/DimMet-5.5.5 Motion (translation, angle) stage
L/DimMet-5.5.6 Profile instruments
L/DimMet-5.5.7 (Flatness, wavefront) interferometer
L/DimMet-5.5.8 Form measuring machine
L/DimMet-5.6 Hardness
L/DimMet-5.6.1 Hardness indenter (Rockwell, Vickers)
L/DimMet-6 Various dimensional
L/DimMet-6.1 Hand instruments
L/DimMet-6.1.1 External micrometer
L/DimMet-6.1.2 Micrometer head
L/DimMet-6.1.3 Depth micrometer
L/DimMet-6.1.4 Caliper
L/DimMet-6.1.5 Depth gauge
L/DimMet-6.1.6 Internal two-point (bore) micrometer
L/DimMet-6.1.7 Internal three-point (bore) micrometer
L/DimMet-6.1.8 Dial gauge
L/DimMet-6.1.9 Snap gauge (internal, external)
L/DimMet-6.2 Pressure artefacts
L/DimMet-6.2.1 Piston - cylinder assembly
L/DimMet-6.3 Thermal expansivity
L/DimMet-6.3.1 Thermal expansion artefact
L/DimMet-6.4 Long distance
L/DimMet-6.4.1 Geodesic baseline
L/DimMet-6.5 Reference materials
L/DimMet-6.5.1 Standard particle
L/DimMet-6.5.2 Sieve or mesh opening
L/DimMet-6.6 Layer thickness
L/DimMet-6.6.1 Layer thickness standard
L/DimMet-6.7 Not attributed 1
L/DimMet-6.7.1 Not attributed 2
L/DimMet-6.7.2 Not attributed 1