STEEL. HARDNESS CONVERSIONS
Edition 1985-06-15

TESTING OF GLASS. KNOOP HARDNESS TEST
Edition 1984-06-15

PHYSICAL-MECHANICAL CHARACTERISTICS OF WOOD. HARDNESS DETERMINATION.
Edition 1977-03-15

PLASTICS - DETERMINATION OF HARDNESS - PART 2: ROCKWELL HARDNESS (ISO 2039-2:1987)
Edition 2000-07-24

AEROSPACE SERIES. ACRYLONITRILE-BUTADIENE RUBBER (NBR). HARDNESS 40 IRHD.
Edition 1996-12-20

AEROSPACE SERIES. SILICONE RUBBER (VMQ). HARDNESS 50 IRHD.
Edition 1996-05-23

AEROSPACE SERIES. SILICONE RUBBER (VMQ). HARDNESS 60 IRHD.
Edition 1996-05-23

AEROSPACE SERIES. SILICONE RUBBER (VMQ). HARDNESS 70 IRHD.
Edition 1996-05-23

AEROSPACE SERIES. SILICONE RUBBER (VMQ/PVMQ) WITH HIGH TEAR STRENGTH. HARDNESS 50 IRHD.
Edition 1996-05-23

AEROSPACE SERIES. ETHYLENE-PROPYLENE RUBBER (EPM/EPDM). HARDNESS 50 IRHD.
Edition 1996-06-24