No. 2B MGM REID VAPOR PRESSURE CYLINDER (PRESSURE TYPE) is to be used for testing samples handled at greater than atmospheric pressure. No. 2B MGM REID VAPOR PRESSURE CYLINDER (PRESSURE TYPE), WIT No. 6 MGM LPG CONVERSION ADAPTER inserted between the gauge adapter and the air chamber, is to be used for the determination of vapor pressures of liquefied petroleum gases.
No. 1B and No. 2B cylinders are to be used according to ASTM Designation: D323, Federal Standard Method 1201, and C.N.G.A. Method. No. 2B Reid Vapor Pressure Cylinder with No. 6 LPG Conversion Adapter is to be used according to ASTM Designation: D1267, C.N.G.A. and N.G.P.A. Methods. (See ASTM Standards on Petroleum Products and Lubricants, Federal Test Method Standard No. 791, and N.G.P.A. Publication 2140.)
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