Abstract： ASME B16.25:2012 pdf download.Buttwelding Ends. 1.5 Referenced Standards Standards and specifications adopted by reference in this Standard are shown in Mandatory Appendix TI. It is not considered practical to identify the specific edition...

ASME B16.25:2012 pdf download.Buttwelding Ends.

1.5 Referenced Standards

Standards and specifications adopted by reference in this Standard are shown in Mandatory Appendix TI. It is not considered

practical to identify the specific edition of each standard and specification in the individual references. Instead, the specific

edition reference is identified in Mandatory Appendix II. A product made in conformance with a prior edition of referenced

standards will be considered to be in conformance, even though the edition reference may be changed in a subsequent revision of the standard.

1.6 Quality Systems

Nonmandatory requirements relating to the manufacturer’s quality system program are described in Nonmandatory Appendix A.

1.7 Convention

For determining conformance with this Standard, the convention for fixing significant digits where limits (maximum and minimum

values) arc specified shall be as defined in ASTM E29. This requires that an observed or calculated value be rounded off to the

nearest unit in the last right-hand digit used for expressing the limit. Decimal values and tolerances do not imply a particular

method of measurement.

2 TRANSITION CONTOURS

Figure 1 delineates the maximum envelope in which transitions from welding bevel to the outer surface of the component and from the root face to the inner surface of the component must lie. Except as specified in Note (5) to Fig. 1, and as otherwise specified by the purchaser, the exact contour within this envelope is the manufacturer’s option, provided it maintains the specified minimum.

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