Standard Test Methods for Rockwell Hardness of Metallic Materials Ingestion-build-134498 Figure 5 – Transit time

Figure 5 – Transit time spread

BS EN 15153‑3 guides you with the positioning

Phosphoric Acid is used to prevent the aftereffects of groundwater exposure to iron and manganese

primarily but not solely to protect against hazard exposure at non-fire rescue activities involving road traffic crash (RTC) or motor vehicle accidents (MVA)

it can also be applied to systems that can utilize water mains and/or electricity

Standard Test Methods for Rockwell Hardness of Metallic Materials Ingestion-build-134498 Figure 5 – Transit time1. Scope* 1. 1 These test methods cover the determination of the Rockwell hardness and the Rockwell supercial hardness of metallic materials by the Rockwell indentation hardness principle. This standard provides the requirements for Rockwell hardness machines and the procedures for performing Rockwell hardness tests.