HSS refers to the pickups. The standard Strat has three Single coil pickups, and would be designated SSS. The H in HSS implies that the bridge pickup is a Humbucker. Thi â¦ s became popular because many players find that a single coil in the bridge position sounds too thin and sharp.
To ensure compliance with NACE MRO175, the following requirements must be met: 1  Approved mild carbon steel or fully annealed 316 stainless steel materials. 2  ASME approved welders and weld procedures. 3  Hardness testing to maximum HRC 22.
Compliance, Safety, Accountability (CSA) 1  CSA is FMCSA's data-driven safety compliance and enforcement program designed to improve safety and prevent commercial motor vehicle (CMV) crashes, injuries, and fatalities.