Barcol Impressor Test Disk for Hardness Tester is used to measure the accuracy of a Barcol Impressor Hardness Tester presented by MSP Metrology (M) Sdn Bhd from Barber-Colman Barcol USA
| Product Code | Description | Range | Compatible Model |
| GYZJ-78-100 | CERTIFIED Test Disks, Bag of 5 | 43 – 48 | GYZJ-934 |
| GYZJ-250-100 | CERTIFIED Test Disks, Bag of 5 | 87/89 | GYZJ-934 |
| GYZJ-69-100 | CERTIFIED Test Disks, Bag of 5 | 87 – 89 | GYZJ-935 |
| GYZJ-70-100 | CERTIFIED Test Disks, Bag of 5 | 43 – 48 | GYZJ-936 |
| GYZJ-78 | Standard Test Disks | 43 – 48 | GYZJ-934 |
| GYZJ-250 | Standard Test Disks | 87/89 | GYZJ-934 |
| GYZJ-69 | Standard Test Disks | 87 – 89 | GYZJ-935 |
| GYZJ-70 | Standard Test Disks | 43 – 48 | GYZJ-936 |
