General Requirement for Preformed Hoses for Air Induction on Heavy-Duty Engines
This SAE Standard outlines the requirements for a preformed thermosetting hose intended for use in heavy-duty vehicle engines, such as air cleaner to carburetor hose, where it is exposed to normal heat and splash of motor oil.
Rationale: changed since this specification was originally written for how to specify a hose material. Originally, the procurer was required to specify a heat ageing test temperature (Section 3.3), a cold flex test temperature (Section 3.4), and an oil resistance grade (Section 3.5) which hopefully can be met by an available polymer. Most customers prefer to select and specify the polymer only, based on a list of typical properties. It is therefore recommended to list one temperature and oil swell number for each polymer, and let the procurer specify any different test parameters.