Robuta

https://store.astm.org/e0235_e0235m-23.html E235/E235M Standard Specification for Type K and Type N Mineral-Insulated, Metal-Sheathed... k and n https://store.astm.org/e0235-06.html E235 Standard Specification for Thermocouples, Sheathed, Type K and Type N, for Nuclear or for... k and n standard specification https://lter.kbs.msu.edu/citations/3418 LTER Publications - Kahmark, K. and N. Millar. 2014. Stainless Steel Chamber Construction Method.... k and n