AST 445-D - Asphalt Institute Viscometer


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Similar to Cannon Manning Vacuum except a graduated capillary is used in place of two timing bulbs. Sample of approximatly 4 mL is needed. Supplied calibrated with certificate. Recertification available.
• ASTM Method: D445
Part # Size Nominal Constant Viscosity Range (Poise)
445-1D 25 2(B) 1(C) 0.7(D) 42 to 800
445-2D 50 8(B) 4(C) 3(D) 180 to 3,200
445-3D 100 32(B) 16(C) 10(D) 600 to 12,800
445-4D 200 128(B) 64(C) 40(D) 2,400 to 52,000
445-5D 400 500(B) 250(C) 160(D) 9,600 to 200,000