The required odor level to be fulfilled is stated in Volume 3: Employer's Requirements, Section 2: Design Basis, 2.6.2. The procedure of acceptance test shall be as follow: 

The odor shall be measured at a height of 2 meters above the ground and at a lateral distance of 1.5 m away from the odor removal unit at 24 hour average. 

When respective axial fan/s of a building/tank is running, the odor value shall not be more than 1000 OU inside the buildings and at max. 1 m distance to the tanks and other odor sources. 

These tests shall be maintained consecutive 12 days and minimum 10 days shall conform to acceptance criteria. 

## 4.20 Employer's Taking-Over of the Works 

(Yellow Book, Clause 10) 

Once the Contractor has satisfactorily completed the necessary tests, to demonstrate compliance with the Employer’s Requirements and performance guarantees, he shall submit a Final Test Report to the Engineer summarizing the test results which is specified in article 4.15. This report shall be accompanied by: 

• A statement from the Contractor that, in his opinion, the works have passed the tests on completion; and 

• An application for a Taking-Over Certificate. 

The issuing of the Taking-Over Certificate by the Engineer shall, in addition, take place after the following demands have been fulfilled: 

• The operation and maintenance manual has been handed-over to the Engineer in its final version 

• The as-built drawings have been handed-over to the Engineer, 

• The End Recipient’s operational staff have been trained as per Section 11 of Volume 3, 

• All works has been tested on-site for all functions and performance by the Contractor to the satisfaction of the Engineer, and documented in the quality assurance and test report; and the quality assurance and test report have been handed-over to the Engineer. 

## 4.21 Test after Completion/Performance Measurement 

(Yellow Book, Sub-Clause 12) 

## 4.21.1 General 

Tests after completion shall be carried out on the initiative of the Engineer during/prior to the expiration of the defects notification period for final verification of all the performance requirements. 

All measurements shall be carried out in the presence of the Engineer or such other body appointed for this purpose unless the Engineer states otherwise in writing. 

Below is described the performance measurement procedures for the final verification of the treatment performance and the most essential mechanical equipment. 

