Title 40: Protection of Environment
PART 205—TRANSPORTATION EQUIPMENT NOISE EMISSION CONTROLS
Subpart B—Medium and Heavy Trucks
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---------------------------------------------------------------------------------------------------------------- Batch inspection Test Cumulative criteria Sample size code letter Test sample sample test ----------------------- size sample Acceptance Rejection size No. No.----------------------------------------------------------------------------------------------------------------A..................................... 1st..................... 4 4 0 1B..................................... 1st..................... 3 3 0 1C..................................... 1st..................... 3 3 0 2 2d...................... 3 6 1 2D..................................... 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---------------------------------------------------------------------------------------------------------------- Sequence inspection Cumulative criteria Sample size code letter Number of number of ----------------------- batches batches Acceptance Rejection No. No.----------------------------------------------------------------------------------------------------------------A............................................................... 2 2 1 (\2\) 2 4 2 4 2 6 3 5 2 8 4 5B............................................................... 2 2 0 (\2\) 2 4 1 4 2 6 2 5 2 8 3 5 2 10 4 6 2 12 5 6C............................................................... 2 2 (\1\) 2 2 4 0 2 2 6 0 3 2 8 1 3 2 10 2 4 2 12 3 4D............................................................... 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............ .......... dBATEST Personnel:................................................. (Name)Recorded By:.................................................... Date:..... .... (Signature) ________________________________ Supervisor:..................................................... Title:.... ..... (Signature) ________________________________ ----------------------------------------------------------------------------------------------------------------
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[41 FR 15544, Apr. 13, 1976, as amended at 42 FR 61460, Dec. 5, 1977]
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