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o tU. c'GINEEF.IKG PURCHASE SPECIFICA ENGINEERING .DIVISION *# SHEET PACKING March 17, 1972 Engineering Purchas Specification No. K Page l of 2 1.0 SCOPE - Requirements for-compressed asbestos sheet packing for use .as gaskets In pressure-piping systems arc described in this specification. ( 2.0 MATERIAL ," This packing shall consist of asbestos fiber, styrene-butadino copolymer binder, and compounding Ingredients combined and processed to give an acceptable product conforming to this specification. 3.0 REQUIREMENTS 3.1 This material shall be suitable for use with steam, gases, mild acids, petroleum oils and alkalies. It should withstand .temperatures to 750F and have a minimum temperature x pressure factor of 250,000. . 3.2 ` Underwriters* Laboratory approval is required for this packing. This company must be immediately notified of any material changes that would negate this approval. 3.3 Tlta material shall have an anticipated shelf life of 5 years. 4.0 PROPERTIES 4.1 This packing shall have a minimum tensile strength of 2000 pst vfhen tested perpendicular to the grain. The test shall be made according to ASTM F39-59 procedures. f * 4.2 A compressibility of 7-17% with a minimum recovery of 40% is Required when tested at 5000 psi according to ASTM F36-66 --procedures. 5.0 DIMENSIONAL TOLERANCES The thickness of the sheets shall be within the following tolerances: Thickness 1/64" through 1/32" 1/16" through 3/32" 1/G" end over Tolerance +.005" .008" .010" - continued - CRTX 1234 u/. c-G1HEERIKC PURCHASE SPECIFICA ENGINEERING .DIVISION SHEET PACKING torch 17, 1972 Engineering Purchase Specification No. KQ-< Page l of 2 1.0 SCOPE Requirements for-compressed asbestos sheet packing for use .as gaskets in pressure-piping systems are described in this specification. 2.0 MATERIAL . This packing shall consist of asbestos fiber, styrone-butadino copolymer binder, and compounding ingredients combined and processed to give an acceptable product conforming to this specification. 3.0 REQUIREMENTS 3.1 This material shall be suitable for use with steam, gases, mild acids, petroleum oils and alkalies. It should withstand . temperatures to 750F and have a minimum temperature x pressure ;factor of 250,000. 3.2 Underwriters* Laboratory approval is required for this packing. This company must be immediately notified of any material changes th'at would negate this approval. 3.3] The material shall have an anticipated shelf life of 5 years 4.0 'PROPERTIES . 4.1 This packing shall have a minimum tensile strength of 2000 pst \;hon tested perpendicular to the grain. The test shall be made < 4.2 -A compressibility of 7-17% with a minimum recovery of 40% is ' Required when tested at 5000 psi according to ASTM F36-66 --procedures. 5.0 DIMENSIONAL TOLERANCES The thickness of the sheets shall be within the following tolerances: Thickness 1/M" through 1/32" 1/16" through 3/32" 1/C" and over Tolerance *T. 005" t.003" .010" continued - CRTX 1234 o<wiu* CU. C'-GIHEERIKG PURCHASE SPECIFICAT^H! ENGINEERING .DIVISION V SHEET PACKING torch 17, 1972 Engineering Purchase Specification No. KQ-< Page 1 of 2 1.0 SCOPE Requirements for-compressed acbestos sheet packing for use .as gaskets In pressure-piping systems are described in this specification. . 2.0 MATERIAL . ^ This packing shall consist of asbestos fiber, styrone-butadinc copolymer binder, and compounding ingredients combined and processed to give an acceptable product conforming to this specification. 3.0 REQUIREMENTS 3.1 This material shall be suitable for use with steam, gases, mild acids, petroleum oils and alkalies. It should withstand , temperatures to 750F and have a minimum temperature x pressure factor of 250,000. i 3.2 Underwriters* Laboratory approval is required for this packing. This company must be immediately notified of any material changes that would negate this approval. 3.3 Tlic material shall have an anticipated shelf life of 5 years. 4.0 PROPERTIES . 4.1 *fhis packing shall have a minimum tensile strength of 2000 psl \fhcn tested perpendicular to the grain. The test shall be made according to ASTM F39-59 procedures. I* ' 4.2 A compressibility of 7-17Z with a minimum recovery of 40Z is Required when tested at 5000 psi according to ASTM F36-66 '-procedures. 5.0 DIMENSIONAL TOLERANCES The thickness o the sheets shall be within the following tolerances: t Thickness Tolerance 1/64" through 1/32" .005" 1/16" through 3/32" .003" 1/8" end over .010" - continued - CRTX 1234