This International Standard gives guidelines for scintillation detectors and scintillators nomenclature (identification) and standard dimensions of scintillators. This International Standard is applicable to all types of solid organic and inorganic scintillators used in detectors for scintillation counting and spectrometry. The object of this standard is to define a standardized nomenclature for scintillation detectors in which most of the properties can be found. The object of this standard is to standardize the dimensions of bare scintillators in order to facilitate interchangeability of non-encapsulated scintillators and to facilitate intercomparisons of measurements with encapsulated scintillators. Liquid scintillators are not addressed by this standard. NOTE The identification labels laid down in Clause 2 of the present standard include certain dimensions which may be expressed in millimetres or inches. The SI system recommends the use of millimetres rather than inches.