ASME B16.21 2005

  Equipment, separation equipment with the early period of administration management, interim management and post-management. Equipment, initial management generally refers to equipment from the date of acceptance, 

Revision / Edition: 05   ASME B16.21 2005   Chg:      Date: 05/31/05NONMETALLIC FLAT GASKETS FOR PIPE FLANGES

Document Abstract
General

ASME Standard covers types, sizes, materials, dimensions, tolerances, and markings for nonmetallic flat gaskets. These gaskets are dimensionally suitable for use with flanges described in the referenced flange standards

Relevant Units

This Standard states values both in metric and U.S. customary units. As an exception, diameter of bolts and flange bolt holes are expressed in inch units only. These systems of units are to be regarded separately as standard. Within the text, the U.S. customary units are shown in parentheses or in separate tables. The values stated in each system are not exact equivalents; therefore, it is required that each system of units be used independently of the other. Except for diameter of bolts and flange bolt holes, combining values from the two systems constitutes nonconformance with the Standard.

Quality Systems

Requirements relating to the product manufacturers' quality system programs are described in Nonmandatory Appendix A.

References

Standards and specifications adopted by reference in this ASME B16.21 2005 Standard are shown in Mandatory Appendix I

 the use of six months or a year's time, the equipment to adjust, use, maintenance, condition monitoring, fault diagnosis, and operation and maintenance personnel training and education, maintenance, technical information collection, processing and all management, equipment, fixed assets, establish files, technical files, and operation and maintenance of original records. Medium-term management of equipment is the equipment after the warranty management.