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1.1 These specifications describe the properties of devices or assemblies suitable for use as flexible transition couplings, hereinafter referred to as couplings, for underground drainage and sewer piping systems.
1.2 Couplings that may include bushings or inserts and that meet the requirements of this standard are suitable for joining plain end pipe or fittings. The pipe to be joined shall be of similar or dissimilar materials, size, or both.
1.3 The values stated in inch-pound units shall be regarded as standard.
1.4 The ASTM standards referenced herein shall be considered mandatory.
1.5 The committee with jurisdiction over this standard is not aware of another comparable standard for materials covered in this standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A644 Terminology Relating to Iron Castings
D395 Test Methods for Rubber Property--Compression Set
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension
D471 Test Method for Rubber Property--Effect of Liquids
D543 Practices for Evaluating the Resistance of Plastics to Chemical Reagents
D573 Test Method for Rubber--Deterioration in an Air Oven
D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D638 Test Method for Tensile Properties of Plastics
D1149 Test Methods for Rubber Deterioration--Cracking in an Ozone Controlled Environment
D2240 Test Method for Rubber Property--Durometer Hardness
D3045 Practice for Heat Aging of Plastics Without Load
D6147 Test Method for Vulcanized Rubber and Thermoplastic Elastomer--Determination of Force Decay (Stress Relaxation) in Compression
ICS Number Code 23.040.60 (Flanges, couplings and joints)
UNSPSC Code 40172603(Cast iron pipe coupling)