Do NACE MR0175 and MR0103 call out the correct hardness testing standards? NACE MR0175-2015 says to use ASTM E384, and NACE MR0103 says ASTM E92 has been replaced by ASTM E384. Yet both ASTM E92-17 and ASTM E384-17 appear to be active. ASTM E384 is only for microhardness up to 1000g, and E92 is for Vickers hardness testing over 1kg. Since NACE specifies hardness testing at either 5kg or 10kg, it seems like they are calling out the wrong standard? Am I missing something, or did ASTM not do something NACE was expecting with regards to standard replacement?
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