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]