Standard Specification for Flexible Transition Couplings for Underground Piping Systems
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.
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