BS EN 12697-7:2022 PDF Download

BS EN 12697-7 is a European standard that focuses on the determination of the bulk density of bituminous specimens using gamma rays. It specifically outlines a method for measuring the bulk density of pavement mixtures using a transmission-type gamma radiation test bench. This method is applicable to cylindrical specimens or parallelepipedal blocks that are prepared in a laboratory or cut from a pavement. The thickness of the specimen body traversed by the radiation should fall within the range of 30 mm to 300 mm. It should be noted that the method cannot be applied to materials containing slags with variable metal content or chemical composition.

This standard is intended for use by manufacturers of bituminous mixtures, construction engineers, testing authorities, regulatory authorities, and quality testing personnel. It provides a reliable and non-destructive test method for determining the bulk density of bituminous specimens using gamma rays. By utilizing this standard, users can obtain accurate measurements in the laboratory without affecting the properties of the material. The standard also includes details of the necessary apparatus, such as the emitter-source unit, receiving unit, lead collimators, measurement chain, and processing chain.

In terms of recent updates, BS EN 12697-7:2022 supersedes the previous version, BS EN 12697-7:2014. The updated version includes several changes, such as clarifications in the title and scope, the deletion and addition of specific clauses and footnotes, renumbering of formulas, and revision of data to be reported. These updates aim to improve the clarity and consistency of the standard, ensuring its adherence to current industry practices and standards.