NIST1893

Copper microhardness test block (Knoop)

NIST^® SRM^® 1893

• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 100
• form: powder
• packaging: pkg of each
• manufacturer/tradename: NIST^®

Description

General description

This Standard Reference Material (SRM) is intended for use as a primary standard in calibrating Knoop-type microhardness testers and is certified for mean Knoop hardness values at loads of 0.245 N, 0.490 N, and 0.980 N (0.025 kgf, 0.050 kgf, and 0.100 kgf, respectively). A unit of SRM 1893 consists of a square test block of electrodeposited bright copper on an AISI 1010 steel substrate. The test block measures 1.35 cm on each side, is approximately 1.5 mm thick, and is mounted in a thermosetting epoxy. For more information, please refer to the SDS and COA.

SRM 1893_cert

SRM 1893_SDS

Other Notes

Example analytes are listed below as a reference. Please download a current certificate at nist.gov/SRM for current analytes and certified values.
Copper (Cu)

See certificate for values and more details at nist.gov/SRM.

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology

Safety Information

• pictograms: GHS02,GHS09
• signalword: Danger
• hcodes: H228,H410
• pcodes: P210 - P240 - P241 - P273 - P280 - P370 + P378
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1
• Storage Class: 4.1B - Flammable solid hazardous materials
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable