Spc. Viscosity 1/2S 3.2-8.4 1S 8.5-16.0 the Concentration of the Nitrocellulose Solution is 20.0% Nitrogen: 11.5-12.2%; Transmiting rate:≥85%; Acidity: ≤0.07%; Heat resistant rate: ≥10; Breakout point: ≥180℃; Ash content: ≤0.2%; Wetting agent: 30±2% Spc. Viscosity 3S 2.0-4.0 10S 5.0-12.0 15S 13.0-20.0 30S 21.0-40.0 60S 41.0-80.0 120S 81.0-160 the Concentration of the Nitrocellulose Solution is 12.2% Nitrogen: 11.5-12.2%; Transmiting rate:≥85%; Acidity: ≤0.07%; Heat resistant rate: ≥10; Breakout point: ≥180℃; Ash content: ≤0.2%; Wetting agent: 30±2%