WIRE NEWS WN July 2018 | Page 9

Buehler is now fully certified
to ASTM and ISO standards
for the calibration of
reference blocks for hardness
testing to Rockwell, Brinell,
Vickers and Knoop. © ITW
Test & Measurement GmbH
in-house, and at the same time covers the entire
spectrum of equipment and consumables. Buehler Test Blocks Available in Rockwell,
Vickers, Knoop and Brinell Hardness Scales
Scope of Accreditation Buehler’s hardness reference blocks utilize the
highest quality material to insure the most uniform
and repeatable test blocks available. Buehler’s Test
Block Calibration Laboratory has the capability to
produce and calibrate test blocks for many different
hardness scales.
The Buehler Wilson® Reference Block Laboratory in
Binghamton is accredited to perform calibrations on
standardized hardness reference blocks according to
the following standards:
.
• Rockwell Hardness Test Blocks to ASTM E18 and
ISO 6508-3 •
•
• Rockwell Superficial Hardness Test Blocks to
ASTM E18 and ISO 6508-3 •
•
•
• Vickers Test Blocks to ASTM E92 ISO 6507-3
•
• Knoop Test Blocks ASTM E92 ISO 4545-3
• Brinell Test Blocks ASTM E10 ISO 6506-3
Rockwell: Regular and Superficial scales
Vickers Microindentation: Loads from 10gf to
200 gf
Vickers Low Load: from 200 gf to 5 kgf
Vickers: Loads from 5kgf to 120kgf
Knoop Microindentation : Loads from 10gf to
1kgf
Brinell: Loads from HBW5/750, HBW5/250,
HBW10/1000, HBW10/3000, HBW2.5/62.5,
HBW2.5/187.5
https://www.buehler.com/hardness-testing.php
WIRE NEWS
July 2018
9