Interpretation ID: aiam3916
Allied Automotive
Bendix Safety Restraints Division
353 Cass Avenue
Mount Clemens
MI 48043;
Dear Mr. Cox: This responds to your letter of February 26, 1985, concerning th corrosion resistance requirements of Standard No. 209, *Seat Belt Assemblies* for safety belt attachment hardware. You asked whether the standard uses a 24 hour salt spray test or a 48 hour salt spray test. As explained below, the length of the test depends on what type of safety belt attachment hardware is being tested.; Section S5.2(a) of the standard sets out the test procedures for th corrosion resistance requirements for attachment hardware. The test procedure provides that if the attachment hardware is used at or near the floor of a vehicle, it shall be tested for a 50 hour period, consisting of two 24 hour exposures to salt spray followed by a one hour drying period following each exposure. If the hardware is not used at or near the floor of a vehicle, then it is subjected to a 25 hour test, consisting of one period of 24 hours exposure to salt spray followed by a one hour drying period.; If you have further questions, please let me know. Sincerely, Jeffrey R. Miller, Chief Counsel