99.9% pure lens sulfur - concrete specimen surfacing

99.9% pure lens-type refined sulfur. Used in laboratories for surfacing concrete specimens.
As it is dust-free, it prevents the formation of undesirable explosive atmospheres. Compared with powdered sulfur, it has the advantage of a greatly reduced odor and a low dust content.
Ash content % 0.1 Max.
Humidity % 0.5 Maximum
Particle size 1-3 mm
25 kg bag.