This specification covers the requirements for newly manufactured steel abrasive or re-manufactured steel abrasive for use in surface preparation by blast cleaning.
This specification does not cover recycled steel abrasive processed through field or shop abrasive blast cleaning units. Requirements for recycled steel abrasives are covered in SSPC-AB 2, Specification for Cleanliness of Recycled Ferrous Metallic Abrasives.
Steel abrasives covered by this specification are intended for the removal of rust, mill scale, paint or other surface coating system, or for general blast cleaning.
Steel abrasives can have two basic particle shapes: spherical or round for shot and angular or irregular for grit, as defined in Sections 4.3.3.1 and 4.3.3.2.
2.2 The size designations and specifications for steel shot and grit are given in Tables 1 and 2 of this specification.