Tested as per ISO 6507-1, IS 1501 (Part 1) and/or ASTM E92
Tested at Fmi Testing Laboratory, NABL accredited (ISO/IEC 17025:2017)
Specially curated high-quality steel, aluminium and brass material
Specially designed heat treatment and cryogenic treatment to achieve maximum long term hardness stability, consistency and repeatability
Mirror surface finish by grinding, lapping and diamond polishing
LASER marking on the surface of hardness value, Serial number and company logo
Optional hexagonal LASER grid marking
Available in shapes: Φ50 mm
Recommended key usage: Periodic/daily intermediate checks as a secondary reference block.