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Question: Phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation. The inquirer may also include any plans or drawings that are necessary to explain the question; however, they should not contain proprietary names or information.
Requests that are not in this format will be rewritten in this format by the Committee prior to being answered, which may inadvertently change the intent of the original request. ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Attending Committee Meetings. The B16 Standards Committee regularly holds meetings, which are open to the public. Persons wishing to attend any meeting should contact the Secretary of the B16 Standards Committee.
It is not considered practical to identify the specific edition e gas tungsten arc welding GTAW of the root pass of each standard and specification in the individual ref- Details of preparation for any backing ring must be erences. Instead, the specific edition reference is identi- specified when ordering the component. A product made in conformance with a prior edition of referenced stan- 1.
Unless otherwise specified by the purchaser, it does not apply to welding ends conforming Nonmandatory requirements relating to the manufac- to ASME B Customary units. These systems of units are to be convention for fixing significant digits where limits regarded separately as standard. Within the text, the maximum and minimum values are specified shall be U. This requires that an observed separate table that appears in Mandatory Appendix I. Combining values method of measurement.
NPS of the component must lie. Except as specified in Note 5 is related to the reference nominal diameter DN used to Fig. End preparation is illustrated in Fig. Customary Units slightly chamfered. Date of Issuance: December 29, The next edition of this Standard is scheduled for publication in ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard.
Sponsored Ads. Account About Us We believe everything in the internet must be free. So this tool was designed for free download documents from the internet. Dimensions for short pattern lap joints were also added. Revisions were developed as a need for clarification and improvements became known and were approved as ASA B Subcommittee F immediately began work on a major expansion and updating of the Standard, adding illustrations and requirements for welding end configurations applicable to a number of specific circumstances, including cast steel and alloy valves.
In the edition, inch dimensions were established as the standard, and numerous changes in text and format were made. Notes for illustrations were also clarified. In , the subcommittee revised the requirements for the preparation of the inside diameter of welding end.
The references in Annex B were also updated. In the edition, metric dimensions were added as an independent but equal standard to the inch units. An Annex was also added to reference quality system requirements. In the edition, the reference standard dates were updated.
There were clarifications to text made to address inquiries. Tolerances on bevel angles were modified slightly. In the edition, buttwelding end data were extended to cover requirements for sizes up to NPS 48 DN The reference data were updated, and the interpretation section was removed from the Standard. In the edition, the references in Mandatory Appendix II were updated, and notes were updated in the included tables. In this edition, provisions have been made to update verbiage and readings.