40 C.F.R. Appendix I to Subpart B of Part 205

Table I—Sample Size Code Letters Batch size Code letter 4 to 8 A. 9 to 15 B. 16 to 25 C. 26 and larger D. Table II—Sampling Plans for Inspecting Batches Sample size code letter Test sample Test sample size Cumulative test sample size Batch inspection criteria Acceptance No. Rejection No. A 1st 4 4 0 1 B 1st 3 3 0 1 C 1st 3 3 0 2 2d 3 6 1 2 D 1st 2 2 ( 1 ) 2 2d 2 4 ( 1 ) 2 3d 2 6 0 2 4th 2 8 0 3 5th 2 10 1 3 6th 2 12 1 3 7th 2 14 2 3 1 Batch acceptance not permitted at this sample size. Table III—Batch Sequence Plans Sample size code letter Number of batches Cumulative number of batches Sequence inspection criteria Acceptance No. Rejection No. A 2 2 1 ( 2 ) 2 4 2 4 2 6 3 5 2 8 4 5 B 2 2 0 ( 2 ) 2 4 1 4 2 6 2 5 2 8 3 5 2 10 4 6 2 12 5 6 C 2 2 ( 1 ) 2 2 4 0 2 2 6 0 3 2 8 1 3 2 10 2 4 2 12 3 4 D 2 2 0 2 2 4 1 3 2 6 2 4 2 8 3 4 1 Batch sequence acceptance not permitted for this number of batches. 2 Batch sequence rejection not permitted for this number of batches. Table IV—Recommended Format for Vehicle Noise Data Sheet Test Report Number: Manufacturer: VEHICLE: Trade Name: VIN: Model Year: Other Reference No: Configuration Identification: Category Identification: Test Site Identification and Location: INSTRUMENTATION: Microphone Manufacturer: Model No: Serial No: Sound Level Manufacturer: Model No: Serial No: Calibrator Manufacturer: Model No: Serial No: Other and Manufacturer: Model No: Serial No: TEST DATA: Approach Gear: Date of Test: Approach RPM: Temp: Wind: Acceleration Test: Deceleration Test: Acceleration Test Run No. 1 2 3 4 5 dBA Left Right Highest RPM attained in End Zone Calculated Sound Pressure dBA Deceleration Test with Exhaust Brake Applied dBA Left Right Calculated Sound Pressure dBA TEST Personnel: (Name) Recorded By: Date:......... (Signature) Supervisor: Title:......... (Signature) [41 FR 15544, Apr. 13, 1976, as amended at 42 FR 61460, Dec. 5, 1977]