A number in parentheses indicates the year of last reapproval. This standard has been approved for use by agencies of the U. Department of Defense. Procedure A is used to determine burst pressure of aspecimen if the mode of failure is to be determined.
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More F Data obtained by this test method are of use only in predicting the behavior of pipe, tubing, and fittings under conditions of temperature, time, method of loading, and hoop stress similar to those used in the actual test. They are generally not indicative of the long-term strength of thermoplastic or reinforced thermosetting resin pipe, tubing, and fittings, and reinforced thermoplastic pipe.
Either the internal hydraulic pressure or the hoop stress may be listed in the requirements. For instance, significant differences have been observed between failure times of 65 and 85 s. Scope 1. Procedure A is used to determine burst pressure of a specimen if the mode of failure is to be determined. Procedure B is used to determine that a specimen complies with a minimum burst requirement. A protective thermoplastic cover layer is applied over the reinforcement.
For design and pressure, the thermoplastic core and cover layers are not considered hoop stress bearing elements. All of the hoop stress is taken up by the reinforcement layer.
The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
ASTM D1599 PDF