ASTM F1055 PDF

More F Specimens shall be conditioned prior to joining at the minimum or maximum pipe temperature allowable for fusion. The fittings shall be subjected to several tests to determine conformance to minimum hydraulic burst pressure, sustained pressure, tensile strength, impact resistance, and joint integrity requirements. Fusion evaluation test for fitting failure and evaluation for voids shall also be conducted.

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List of Specifications A. Steel pipe of unknown or unlisted specification. Bending Properties. For pipe 2 inches 51 millimeters or less in diameter, a length of pipe must be cold bent through at least 90 degrees around a cylindrical mandrel that has a diameter 12 times the diameter of the pipe, without developing cracks at any portion and without opening the longitudinal weld.

A girth weld must be made in the pipe by a welder who is qualified under subpart E of this part. The weld must be made under the most severe conditions under which welding will be allowed in the field and by means of the same procedure that will be used in the field.

On pipe more than 4 inches millimeters in diameter, at least one test weld must be made for each lengths of pipe. On pipe 4 inches millimeters or less in diameter, at least one test weld must be made for each lengths of pipe. The same number of chemical tests must be made as are required for testing a girth weld. The pipe must be clean enough to permit adequate inspection. It must be visually inspected to ensure that it is reasonably round and straight and there are no defects which might impair the strength or tightness of the pipe.

Tensile Properties. If the tensile properties of the pipe are not known, the minimum yield strength may be taken as 24, p. All test specimens shall be selected at random and the following number of tests must be performed: Number of Tensile Tests - All Sizes 10 lengths or less 1 set of tests for each length.

Over lengths 1 set of tests for each 10 lengths, but not less than 20 tests. If the yield-tensile ratio, based on the properties determined by those tests, exceeds 0. Steel pipe manufactured before November 12, , to earlier editions of listed specifications.

Steel pipe manufactured before November 12, , in accordance with a specification of which a later edition is listed in section I of this appendix, is qualified for use under this part if the following requirements are met: A. It must be visually inspected to ensure that it is reasonably round and straight and that there are no defects which might impair the strength or tightness of the pipe. Similarity of specification requirements.

The edition of the listed specification under which the pipe was manufactured must have substantially the same requirements with respect to the following properties as a later edition of that specification listed in section I of this appendix: 1 Physical mechanical properties of pipe, including yield and tensile strength, elongation, and yield to tensile ratio, and testing requirements to verify those properties.

Inspection or test of welded pipe. On pipe with welded seams, one of the following requirements must be met: 1 The edition of the listed specification to which the pipe was manufactured must have substantially the same requirements with respect to nondestructive inspection of welded seams and the standards for acceptance or rejection and repair as a later edition of the specification listed in section I of this appendix.

Notwithstanding any shorter time period permitted under subpart J of this part, the test pressure must be maintained for at least 8 hours. CFR Toolbox.

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ASTM F1055 PDF

Vusho ASTM F — 16A This specification covers electrofusion-type polyethylene fittings for outside diameter controlled polyethylene pipe and tubing. Standards Subsctiption may be the perfect solution. Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work. Distribution of the PDF is not permitted. The values given in f are mathematical conversions to SI units that are provided for information only and are not considered standard. The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email. We have no amendments or corrections for this standard.

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ASTM F1055

List of Specifications A. Steel pipe of unknown or unlisted specification. Bending Properties. For pipe 2 inches 51 millimeters or less in diameter, a length of pipe must be cold bent through at least 90 degrees around a cylindrical mandrel that has a diameter 12 times the diameter of the pipe, without developing cracks at any portion and without opening the longitudinal weld. A girth weld must be made in the pipe by a welder who is qualified under subpart E of this part. The weld must be made under the most severe conditions under which welding will be allowed in the field and by means of the same procedure that will be used in the field. On pipe more than 4 inches millimeters in diameter, at least one test weld must be made for each lengths of pipe.

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More C However, surface temperatures of insulated equipment and appliances are potentially high enough to cause burns from contact exposure under certain conditions. Current practice for this determination is widely varied. The intent of this guide is to tie together the existing practices into a consensus standard based upon scientific understanding of the thermal physics involved. Flexibility is retained within this guide for the designer, regulator, or consumer to establish specific burn hazard criteria.

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