UNITED INSPECTION & TESTING 3 - 2000

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"" ...., The laboratory firm must be under the responsible engineering management of a registered professional engineer with experience in inspection and testing of construction materials. This engineer must certify the results of all tests performed by the lab personnel under his/her supervision. . Standard Specifications for Public Works Construction ("Green Book") is used for all City projects. According to Section 4-1.3.3, the City shall select a testing lab to sample and test materials at locations too distant for the local testing laboratory to conduct testing and sampling. Depending on terms of the contract, the costs may be borne by the contractor, but the contractor shall not select or exercise authority over the testing laboratory. . Accepting testers from the adequate identification with Assurance testing personnel testers' certificates. selected firm shall carry them so that the Independent can verify the acceptance . The selected firm must maintain the laboratory testing equipment in accordance with recognized national stand- ards. . The selected firm must have an independent assurance testing and sampling program. This program can be performed either by their own personnel not involved in the acceptance testing and sampling, or by another quality assurance organization. Acceptance Testing and Sampling . The selected testing laboratory shall conduct acceptance sampling and testing of materials and work on the first day such work is performed; and continues daily until the work is completed. Reporting Test Results . When aggregate is sampled in the material source, the laboratory firm shall submit to the Resident Engineer results of sand equivalent, cleanness value and sieve analysis wi thin 24 hours. When soils and aggregate are sampled at the job site, results of these tests should be submitted within 72 hours. . Results of compaction and density tests taken at the job site should be submitted within 24 hours. 3