J : Issues certificates with the JCSS symbol for measurement act traceability system.
A : Issues certificates with the A2LA (American Association for Laboratory Accreditation) symbol.
| High-precision length standards, Micro scales | ||
|---|---|---|
| Wavelength-stabilized He-Ne lasers at 633nm | J | A |
| Standard micro scales | J | |
| Gauge blocks(interferometry or comparison) | J | A |
| Glass scales, Objective micrometers | J | A |
| Master gauges for calibration | ||
| Ring gauges | A | |
| Plug gauges, Pin gauges | A | |
| Thread plug gauges | A | |
| Thread ring gauges | A | |
| Taper gauges | A | |
| Three wires for screw thread measuring | A | |
| Standard bars | J | A |
| Test bars | A | |
| Step gauges | J | A |
| Dial gauge testers | J | A |
| Optical flats | A | |
| Optical parallels | A | |
| Precise measuring machines | ||
| 1-D length measuring machines | A | |
| Electrical comparators | A | |
| Microindicators | A | |
| Measuring microscopes | A | |
| Measuring projectors | A | |
| Coordinate measuring machines | A | |
| Contact stylus instrument | A | |
| Measuring tools, Metal rules, Steel tape measures | ||
|---|---|---|
| Callipers | J | A |
| Micrometers | J | A |
| Cylinder gauges | J | A |
| Dial gauges | J | A |
| Depth gauges | J | A |
| Hole testers | A | |
| Height gauges | J | A |
| Metal rules, Steel tape measures | J | A |
| Convex Rules | A | |
| Test Sieves | A | |
| Angle standards | ||
| Rotary encoders | J | |
| Optical polygons | A | |
| Index tables | A | |
| Angle gauges | A | |
| Angle blocks | A | |
| Autocollimators | A | |
| Straightedges, Squares | A | |
| Precision surface plates | A | |
| Precision levels | A | |
| Contact Profilometry | ||
| Length / Angle | A | |