| Asset: | Document: Technical guide |
| Title: | Hardness conversion: ASTM E140 |
| Description: | Technical guide: hardness conversion table compliant to ASTM E140 |
| Published: | 15/10/2015 |
| Revised: | 15/10/2015 |
Industria – Settembre 2016 
| Asset: | Document: Technical guide |
| Title: | Hardness conversion: ASTM E140 |
| Description: | Technical guide: hardness conversion table compliant to ASTM E140 |
| Published: | 15/10/2015 |
| Revised: | 15/10/2015 |
Industria – Settembre 2016