MIL-DTL-52618F
(Copies of these documents are available online at https://www.astm.org or from the ASTM
International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.)
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)
ISO 17025
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General requirements for the competence of testing and
calibration laboratories
(Copies of these documents are available online at www.ansi.org or from the ANSI Customer Service
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Department, 25 W. 43 Street, 4 Floor, New York, NY 10036.)
NATIONAL CONFERENCE OF STANDARDS LABORATORIES (NCSL)
NCSL Z540.3
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Requirements for the Calibration of Measuring and Test
Equipment
(Copies of these documents are available online at https://www.ncsli.org or from NCSL International
2995 Wilderness Place, Suite 107 Boulder, Colorado 80301-5404.)
2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict
between the text of this document and the references cited herein, (except for related specification
sheets), the text of this document takes precedence. Nothing in this document, however, supersedes
applicable laws and regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Specification sheets. The individual item requirements shall be as specified herein and in
accordance with the applicable specification sheet. In the event of any conflict between the requirements
of this specification and the specification sheet, the latter shall govern.
3.2 Description. The threaded aluminum pipe fittings, hereinafter referred to as "fittings" shall be of
the 150-pound class. Fittings specified herein shall include crosses, tees, 90° and 45° elbows, couplings,
reducers, return bends, reducing crosses, tees and elbows, caps, plugs, bushings, and street elbows.
3.2.1 Intended use. Intended use is with water, oil, or air 150 psi (1.03 MPa) max at 72°F (22°C).
3.3 Material. Material shall be as specified herein. Materials not specified shall be selected by the
contractor and shall be subject to all provisions of this specification.
3.3.1 Recovered materials. For the purpose of this requirement, recovered materials are those
materials that have been collected from solid waste and reprocessed to become a source of raw
materials, as distinguished from virgin raw materials. The components, pieces and parts incorporated in
the fittings may be newly fabricated from recovered materials to the maximum extent practicable,
provided the fittings produced meets all other requirements of this specification. Used, rebuilt or
remanufactured components, pieces and parts shall not be incorporated in the fittings.
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