Rockwell Hardness Calibration Test Blocks
Make sure your hardness testers are accurately calibrated. Blocks are marked with their corresponding Rockwell hardness and a serial number.
All blocks come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.
Individual Test Bars for Brinell Hardness Testers
| Accuracy | Lg. | Ht. | Wd. | Choose a Hardness | Each | |
| ±2 | 6" | 9/16" | 9/16" | Brinell 106, Brinell 111, Brinell 114, Brinell 117, Brinell 121, Brinell 124, Brinell 127, Brinell 131, Brinell 135, Brinell 138, Brinell 142, Brinell 147, Brinell 151, Brinell 156, Brinell 160, Brinell 165, Brinell 170, Brinell 176, Brinell 182, Brinell 188, Brinell 194, Brinell 200, Brinell 207, Brinell 212, Brinell 217, Brinell 223, Brinell 229, Brinell 235, Brinell 241, Brinell 248, Brinell 255, Brinell 262, Brinell 269, Brinell 277, Brinell 285, Brinell 293, Brinell 302, Brinell 311, Brinell 321, Brinell 331, Brinell 341, Brinell 352, Brinell 363, Brinell 375, Brinell 388, Brinell 401, Brinell 415, Brinell 429, Brinell 444, Brinell 461, Brinell 477, Brinell 495, Brinell 514, Brinell 534, Brinell 578 | 000000 | 000000 |
Brinell Hardness Testers
Determine the hardness of very hard steel. To use, slide a test bar into the tester, place the tester on your surface, and hit with a hammer; a steel ball will make an impression. Measure the impression with the 20X microscope and use the computing disc to determine hardness.
Brinell Hardness Calibration Test Blocks
Check your hardness tester for accuracy against a block with a known hardness rating. Each block is tested according to ASTM E10, which checks the hardness at five locations along the block. They include a certificate that lists the block’s actual hardness, as well as each of the five measurements taken during the test. Blocks also include a NIST-traceable certificate that states they’ve passed a test for accuracy.
Each block is marked with their Brinell hardness rating and a serial number.
For technical drawings and 3-D models, click on a part number.
Durometer Hardness Test Block Sets
Confirm your durometer hardness tester is taking accurate readings. Use your tester on these blocks to make sure the durometer readings match the block. The blocks come with a calibration certificate traceable to NIST to ensure their accuracy.
| For Durometer Hardness Scale | Lg. | Wd. | Dp. | Includes | Container Type | Each | |
| A | 2" | 2" | 1/4" | Seven 2" x 2" Test Blocks (Durometer 30A-90A) | Carrying Case | 0000000 | 0000000 |
| D | 2" | 2" | 1/4" | Three 2" x 2" Test Blocks (Durometer 20D-80D) | Carrying Case | 0000000 | 000000 |
| M | 2" | 2" | 1/4" | Seven 2" x 2" Test Blocks (Durometer 30M-90M) | Carrying Case | 0000000 | 000000 |
| OO | 2" | 2" | 1/4" | Three 2" x 2" Test Blocks (Durometer 30OO-70OO) | Carrying Case | 0000000 | 000000 |
O-Ring Durometer Hardness Testers
Test the hardness of thin and irregularly shaped plastic, rubber, and laminate parts, such as O-rings. These testers can be used on products where the surface area is too small for accurate durometer readings with a standard Shore A tester, such as the rounded surface of O-rings. They include O-ring fixtures that hold five standard-sized O-rings in place during testing. These testers are also capable of measuring materials as thin as 0.05″, about the thickness of a credit card. On the display, they’ll show the highest reading until they’re reset. They include a calibration certificate traceable to NIST that states they’ve passed a test for accuracy.
Use the included test blocks to practice taking accurate measurements at the right pressure against your workpiece. Send your measurement data directly to your PC using the USB port.
| For O-Ring Wd. | For Durometer Hardness Scale | Hardness Measuring Range | Measuring Increments | Accuracy | Min. Material Thick. | Max. Display Rotation Angle | Batteries Included | Features | Includes | Each | |
For Use On Plastic, Rubber, Laminate | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/16", 3/32", 1/8", 3/16", 1/4" | M | 0-100 | 0.1" | ±4 | 1/16" | 270° | Yes | Maximum-Reading Indicator, Tolerance-Setting High/Low Buttons, USB and RS-232 Connectivity | Digital Durometer Hardness Tester for M Hardness Scale, Seven 2" x 2" Test Blocks (Durometer M), Five O-Ring Fixtures, Operating Stand, Set Plug | 0000000 | 000000000 |
| For Durometer Hardness Scale | Hardness Measuring Range | Measuring Increments | Accuracy | Ht. | Wd. | Dp. | Min. Material Thick. | Max. Display Rotation Angle | Batteries Included | Specifications Met | Features | Each | |
For Use On Plastic, Rubber, Laminate | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 0-100 | 0.1 | ±4 | 6 1/8" | 2 1/2" | 1 5/8" | 1/16" | 270° | Yes | ASTM D2240 | Maximum-Reading Indicator, Tolerance-Setting High/Low Buttons, USB and RS-232 Connectivity | 000000000 | 000000000 |
| For Durometer Hardness Scale | Hardness Measuring Range | Lg. | Wd. | Dp. | Includes | Container Type | Each | |
| M | 30-90 | 2" | 2" | 1/4" | Seven 2" x 2" Test Blocks (Durometer 30M-90M) | Carrying Case | 0000000 | 0000000 |
Color Calibration Plates for Colorimeters
Calibrate your colorimeter so it can identify colors with precision. The white block calibrates your colorimeter because the machine measures all other colors according to their variance from true white. The four colored blocks are particularly helpful in quality control applications, where you want to make sure a specific color is consistent unit-to-unit. Made of ceramic, these plates won’t degrade, warp, or discolor over time, ensuring reliable measurements. Their surfaces are smooth and easy to clean, so they resist scratches that could affect readings. These plates are precisely manufactured to ISO/IEC 17025 standards for testing and calibration equipment.
For technical drawings and 3-D models, click on a part number.
Plate | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Field of View | Number of Plates | Wd., mm | Dp., mm | Color Space | Includes | Specifications Met | Each | |
| 2°, 10° | 5 | 50 | 50 | CIE Lab, RGB, Yxy | Five Plates (Blue, Green, Red, White, Yellow) One Pair Gloves (Size L) | ISO/IEC 17025 | 0000000 | 000000000 |