BS EN 13938 discusses explosives for civil uses. BS EN 13938-5 is the fifth part of BS EN 13938 and discusses the determination of voids and fissures used in the small rocket.
BS EN 13938-5 specifies a method for checking small rocket motors for voids and fissures and provides a guide to non-destructive testing (NDT) methods for detecting voids and fissures in other solid rockets propellants.
BS EN 13938-5 on voids and fissures used in small rockets is useful for:
The presence of excessively large or numerous voids or fissures in solid rocket propellant can result in dangerously high pressures due to increased propellant burning surfaces. The maximum size and number of voids and fissures permitted in a solid rocket propellant to ensure safe functioning are therefore an essential part of the acceptance criteria for the product. For small rocket motors, this can be achieved by burning them in the way they are designed for and measuring the thrust continually. Significant voids and fissures can be recognized by a sudden increase of thrust.
BS EN 13938-5 provides you test method to check small rocket motors for voids and fissures and provides a guide to non-destructive testing (NDT) methods for detecting voids and fissures in other solid rockets propellants. BS EN 13938-5 provides you with terms and definitions for terms and definitions for the functionality of the methods given. BS EN 13938-5 provides you with NDT methods and gives guidance on destructive testing of small rockets. BS EN 13938-5 helps you with the safe functioning of products.
EN 13938-5:2004