This standard specifies the terms and definitions, test apparatus, specimen, test, test results and calculation, and test record and report for resistivity measurement of metallic materials.
This standard is applicable to the measurement of electrical properties of metallic materials such as volume resistivity, mass resistivity, conductivity, and direct-current (DC) resistance ratio.
The methods provided in this standard are arbitration measurement method and routine measurement method for determining resistivity in the range of 0.01 Ω mm2/m to 2.0 Ω mm2/m under standard conditions.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
YB/T 081 Rule for rounding off of numberical values and judgment of testing values for technical standards of metallurgy
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
resistance per unit length
the resistance of conductor of per unit length at a temperature of 20℃
3.2
volume resistivity
the resistance of conductor of per unit length and unit cross-sectional area at a temperature of 20℃
