ASTM E809-21
- Comments Off on ASTM E809-21
- ASTM
1.1”This practice describes the general procedures for instrumental measurement of the photometric characteristics of retroreflective materials and retroreflective devices.
Product Details
- Published:
- 01/01/2021
- Number of Pages:
- 11
- File Size:
- 1 file , 270 KB
- Redline File Size:
- 2 files , 580 KB