Stress corrosion cracking test Sample Clauses

Stress corrosion cracking test. For TPRDs containing components made of a copper-based alloy (e.g. brass), one TPRD unit is tested. All copper alloy components exposed to the atmosphere shall be degreased and then continuously exposed for ten days to a moist ammonia-air mixture maintained in a glass chamber having a glass cover. Aqueous ammonia having a specific gravity of 0.94 is maintained at the bottom of the glass chamber below the sample at a concentration of at least 20 ml per litre of chamber volume. The sample is positioned 35 (±5) mm above the aqueous ammonia solution and supported in an inert tray. The moist ammonia-air mixture is maintained at atmospheric pressure at 35 (±5) °C. Copper-based alloy components shall not exhibit cracking or delaminating due to this test.
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Stress corrosion cracking test. For the valve units containing components made of a copper-based alloy (e.g. brass), one valve unit is tested. The valve unit is disassembled, all copper- based alloy components are degreased and then the valve unit is reassembled before it is continuously exposed for ten days to a moist ammonia-air mixture maintained in a glass chamber having a glass cover. Aqueous ammonia having a specific gravity of 0.94 is maintained at the bottom of the glass chamber below the sample at a concentration of at least 20 ml per litre of chamber volume. The sample is positioned 35 (±5) mm above the aqueous ammonia solution and supported in an inert tray. The moist ammonia-air mixture is maintained at atmospheric pressure at 35 (±5) ºC. Copper-based alloy components shall not exhibit cracking or delaminating due to this test.
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Stress corrosion cracking test. This test is applicable to TPRDs containing copper alloys exposed to the outside environment. For TPRDs containing components made of a copper alloy (e.g. brass), one TPRD unit is tested. All copper alloy components exposed to the atmosphere shall be degreased and then continuously exposed for at least ten days to a moist ammonia-air mixture maintained in a glass chamber having a glass cover. Aqueous ammonia having a specific gravity of 0.94 is maintained at the bottom of the glass chamber below the sample at a concentration of at least 20 ml per litre of chamber volume. The sample is positioned 35 ± 5 mm above the aqueous ammonia solution and supported in an inert tray. The moist ammonia- air mixture is maintained at atmospheric pressure at 35 ± 5°C. Copper alloy components shall not exhibit cracking or delaminating due to this test.
Sample 1

Related to Stress corrosion cracking test

  • Drug Testing (A) The state and the PBA agree to drug testing of employees in accordance with section 112.0455, F.S., the Drug-Free Workplace Act. (B) All classes covered by this Agreement are designated special risk classes for drug testing purposes. Special risk means employees who are required as a condition of employment to be certified under Chapter 633 or Chapter 943, F.S. (C) An employee shall have the right to grieve any disciplinary action taken under section 112.0455, the Drug-Free Workplace Act, subject to the limitations on the grievability of disciplinary actions in Article 10. If an employee is not disciplined but is denied a demotion, reassignment, or promotion as a result of a positive confirmed drug test, the employee shall have the right to grieve such action in accordance with Article 6.

  • Substance Abuse Testing The Parties agree that it is in the best interest of all concerned to promote a safe working environment. The Union has no objection to pre-employment substance abuse testing when required by the Employer and further, the Union has no objection to voluntary substance abuse testing to qualify for employment on projects when required by a project owner. The cost and scheduling of such testing shall be paid for and arranged by the Employer. The Union agrees to reimburse the Employer for any failed pre-access Alcohol and Drug test costs.

  • Alcohol Testing Alcohol testing will be conducted by using an evidential breath-testing device (EBT) approved by the National Highway Traffic Safety Administration. A screening test will be conducted first. This initial screening may be accomplished using a saliva test kit. If the result is an alcohol concentration level of less than 0.02 percent, the test is considered a negative test. If the alcohol concentration level is 0.02 percent or more, a second confirmation test using the EBT will be conducted. The procedures that will be utilized by the lab for collection and testing of the specimen are attached hereto as Appendix A.

  • Human Leukocyte Antigen Testing This plan covers human leukocyte antigen testing for A, B, and DR antigens once per member per lifetime to establish a member’s bone marrow transplantation donor suitability in accordance with R.I. General Law §27-20-36. The testing must be performed in a facility that is: • accredited by the American Association of Blood Banks or its successors; and • licensed under the Clinical Laboratory Improvement Act as it may be amended from time to time. At the time of testing, the person being tested must complete and sign an informed consent form that also authorizes the results of the test to be used for participation in the National Marrow Donor program.

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