Aluminium Powders for Explosives Grade,Free Al min %,"Wet sieve, passing 45 µm %",Water coverage cm²/g,Fatty acid % max,Apparent density g/cc,D50 µm LDS,89,86 min,5000–9000,4,0.20 ± 0.02,15–20 SDS,88,88 min,9000–12000,4,0.20 ± 0.02,13–18 LI-55,89,75–90,—,1.0,0.070–0.130,— FL-77,89,70–90,8000 min,3.0,0.080–0.150,— SL-77,87,85–95,8000–12000,3.0–4.0,0.120–0.160,— Note: Free aluminium by IS 438. Water coverage and fatty matter per IS 438 / ISO 1247. Note: Aluminium powder is a hazardous material. Follow the handling and storage guidance on the Quality page.