This practice covers the handling, testing, and proce-dure for using a radiochromic film dosimetry system to measure absorbed dose in materials irradiated by photons or electrons in terms of absorbed dose in water.This practice applies to radiochromic film dosimeters that can be used within part or all of the specified ranges as follows: 2.1 The absorbed dose range is 1 × 10 to 1 × 10 kGy. 2.2 The absorbed dose rate is 1 × 10 to 1 × 10 Gy/s (1-4). 2.3 The radiation energy range for both photons and electrons is 0.1 to 50 MeV. 2.4 The irradiation temperature range is -78 to +60℃. 3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.