of surface irregularities, providing examples for each to help inspectors distinguish between acceptable and non-acceptable conditions: MSS SP-55 - Manufacturers Standardization Society 24 Apr 2025 —
MSS SP-55 categorizes surface conditions into 12 distinct types, each with its own set of visual references: Peninsula Alloy Inc. MSS SP-55-2001 - Peninsula Alloy Inc. mss sp55 standard pdf work