07.00.00 Instruments, apparatus, and components common to several branches of physics and astronomy (see also each subdiscipline for specialized instrumentation and techniques)
07.50.-e Electrical and electronic instruments and components
07.55.-w Magnetic instruments and components
07.57.-c Infrared, submillimeter wave, microwave and radiowave instruments and equipment (for infrared and radio telescopes, see 95.55.Cs, 95.55.Fw, and 95.55.Jz in astronomy; for biophysical spectroscopic applications, see 87.64.-t)
07.75.+h Mass spectrometers (see also 82.80.Ms, 82.80.Nj, and 82.80.Rt in physical chemistry and chemical physics)
07.77.-n Atomic, molecular, and charged-particle sources and detectors
07.78.+s Electron, positron, and ion microscopes; electron diffractometers
07.79.-v Scanning probe microscopes and components (see also 68.37.-d Microscopy of surfaces, interfaces, and thin films)
07.81.+a Electron and ion spectrometers (see also 29.30.Dn Electron spectroscopy; 29.30.Ep Charged-particle spectroscopy in nuclear physics)
07.85.-m X- and gamma-ray instruments (for x- and gamma-ray telescopes, see 95.55.Ka in astronomy; see also 41.50.+h X-ray beams and x-ray optics)
07.87.+v Spaceborne and space research instruments, apparatus, and components (satellites, space vehicles, etc.) (for instrumentation for space plasma physics, ionosphere, and magnetosphere, see 94.80.+g; see also 95.55.-n and 95.40.+s in astronomy)
07.88.+y Instruments for environmental pollution measurements
07.89.+b Environmental effects on instruments (e.g., radiation and pollution effects) (for environmental effects on optical elements, devices, and systems, see 42.88.+h)
07.90.+c Other topics in instruments, apparatus, and components common to several branches of physics and astronomy (restricted to new topics in section 07)