Description
NZS 5201C – Ringelmann chart
Chart for use in visually assessing the darkness of smoke emitted from chimneys. Identical to BS 2742C:1957.
Product Details
- Published:
- 01/01/1975
- Number of Pages:
- 1
- File Size:
- 1 file , 13 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus