1. Scope
1.1 This practice covers the determination of comparative hardness values by applying the Ultrasonic Contact Impedance Method (UCI Method).
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
E10 Test Method for Brinell Hardness of Metallic Materials
E18 Test Methods for Rockwell Hardness of Metallic Materials
E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E384 Test Method for Knoop and Vickers Hardness of Materials
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Keywords
portable hardness testing; superficial hardness; ultrasonic contact impedance (UCI); vickers diamond indenter; Hardness tests; Ultrasonic contact impedance method ;
ICS Code
ICS Number Code 19.100 (Non-destructive testing)
DOI: 10.1520/A1038-10
ASTM International is a member of CrossRef.
Citing ASTM Standards
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