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4. This specification covers requirements for replaceable cutting -edge blades for motor <br />graders and underbody truck scrapers. <br />5. The blades shall be coated with a rust resistant paint and shall be free of warpage <br />and longitudinal deviation. <br />6. The blades shall be of the following dimensions. <br />a. L128661 Case Center Piece: 1114" X 13" X 7315132" with hole spacing of 113/8" and <br />17" <br />b. L128862 Case 921 End Piece: 1114" x 13" X 23 1132" with hole spacing of 57116" and <br />12 3/8" <br />XVI. DIVISION I: ASPHALT MATERIALS — CONT'D <br />A. Prevailing specification s/I N DOT Standard Specification Section: 404, 406, 408 <br />B. Additions: <br />1. The requirements for AE-T Tack areas follows: <br />Saybolt-Furol Viscosity, 25 Cm, s mmITITITIT ITIT .... <br />Residue from Res. By Dist. % <br />a <br />Min <br />F 100 <br />54 <br />Max <br />62 <br />Portion, from Res. By Dist. ml <br />Oil Per 1 00. Emul., <br />Min <br />4.0 <br />Demulsibilit , % <br />Min <br />75 <br />Sieve Test % <br />Max <br />0.10 <br />Res. By Dist. Float Test <br />1200 <br />Penetration <br />50-200 <br />Solubility in Orq. Solv., % <br />Min. <br />97.5 <br />Ductility, 25°C, mm <br />Min <br />400 <br />2. The requirements for RS-2 are as follows: <br />Sa bolt-Furol Viscosity, 25°C, s <br />75-400 <br />Residue from Res. by Dist. % <br />Min <br />68 <br />Portion, from Res. by Dist. ml <br />Oil er 100 . Emul. <br />Max <br />4.0 <br />Settlement, 5 days % <br />Max <br />5 <br />Demulsibilit , % <br />Min <br />50 <br />Sieve Test % <br />Max <br />0.10 <br />Penetration <br />100-200 <br />Solubility in Or . Solv., % <br />Min <br />97.5 <br />Ductility, 25°C, mm <br />Min <br />400 <br />3. The requirements for AE-90s areas follows: <br />Characteristic IN Test Method <br />Viscosity, Sa bolt Furol at 50°C, min. 50 AASHTO T 59 <br />