| 英文摘要 |
This project according to the standard of the contract, and various works that have already completed to schedule. For the conclusion is as follows:
One, this year the audit and calibrate 1952 vehicle emission analyzers, the total work is 1893 times. The result shows the 4 stations that applicant for nonworking, and 59 stations are unqualified, unqualified rate is 3.1%. The audit unqualified station all have already completed the recheck, and the recheck result is all qualified.
Two, this project increases the recheck frequencies, and it is total 400 stations that contain the beginning-audited unqualified stations, and NIEA audited unqualified stations and the deviation stations. The result has 2 stations still unqualified, the staff members had already drawn improvement suggestion and had already completed the recheck, which the result was all qualified.
Three, this project carries out the standard air compare to 1889 stations, the error mainly distributes between 0-2%, about have all 90%.
Four, the analysis by the beginning-audited unqualified stations that is belong to the instrument problem that include sampling system and the line deviation is 48 sets, account for 81.4% of unqualified quantity ratio of all, and belongs to the problem that the factitiousness corrects the incertitude to have 11 sets, account for 18.6% of unqualified quantity ratio of all. This data manifestation settles have to reeducation.
Five, examine the data from this year with examine the analyzers age analysis result of the data through the years, although the analyzers age is as higher as the unqualified rate to also have the higher trend. However, if the analyzers age is lower and less maintain, there would be the higher and unqualified rate.
Six, from 2002-2004 years, the audited result shows that from overall census the unqualified rate descends the trend, the clearly shows vehicle emission analyzer station for analysis instrument of examination quality have already carried out.
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