1.1 This Recommendation may be applied for alanine EPR dosimetry systems used to control and supervise any application of ionizing radiation for industrial processing of materials and products. It does not cover, nor does it exclude, the use of other equivalent means of measurement or determination of absorbed dose for such applications. 1.2 This Recommendation is intended to apply specifically to manufacturers of alanine dosimeters, to manufacturers of EPR spectrometers used for dosimetry, and to national bodies responsible for the metrological control of dosimetry systems. It also contains information of interest to users of alanine EPR dosimetry systems. 1.3 The metrological and technical performance requirements of alanine EPR dosimetry systems are covered in this Recommendation; however, the selection and routine use of these and other dosimeters for radiation processing applications are discussed in other standards [1, 2]. Performance better than that prescribed in this Recommendation may be achieved. 1.4 This Recommendation applies to dosimeters irradiated by either photons or electrons within the energy range of 0.1 to 28 MeV [1]. Tests of dosimeters according to this Recommendation are specified to be carried out at a reference temperature and humidity within a specified absorbed dose range and absorbed dose rate range.