ASME B16.20:2017 pdf download PART GR GENERAL REQUIREMENTS
GR-1 SCOPE This Standard covers materials, dimensions, tolerances, and markings for metal ring-joint gaskets, spiral-wound metal gaskets, metal-jacketed gaskets, and grooved metal gaskets with covering layers. These gaskets are dimensionally suitable for use with flanges described in reference flange standards ASME B16.5, ASME B16.47, API Specification 6A, and ISO 10423.
GR-2 QUALITY SYSTEMS Requirements relating to the product manufacturers’ quality system programs are described in Nonmandatory Appendix A.
GR-3 REFERENCES Standards and specifications adopted by reference in this Standard are shown in Mandatory Appendix I.
GR-4 RELEVANT UNITS This Standard states values in both SI (Metric) and U.S. Customary units. These systems of units are to be regarded separately as standard. Within the text, the U.S. Customary units are shown in parentheses. 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. Combining values from the two systems constitutes nonconformance with the Standard.
ASME B16.20:2017 pdf download
