ASTM F38-00

ASTM F38-00 - 10.4.2000

1. Scope

1.1 These test methods provide a means of measuring the amount of creep relaxation of a gasket material at a stated time after a compressive stress has been applied.

1.1.1 Test Method A -Creep relaxation measured by means of a calibrated strain gage on a bolt.

1.1.2 Test Method B -Creep relaxation measured by means of a calibrated bolt with dial indicator.

1.2 The values stated in SI units are to be regarded as the standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

A193/A193M-23	Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
B637-23	Standard Specification for Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service
D3040-81	Practice for Preparing Precision Statements for Standards Related to Rubber and Rubber Testing (Withdrawn 1987)
F104-11(2020)	Standard Classification System for Nonmetallic Gasket Materials
	Relaxometer, Method A () A print of this apparatus is available at a nominal cost from ASTM International Headquarters. Order Adjunct No. . Original adjunct produced in 1965.
	Relaxometer, Method B () Detailed working drawings of this apparatus are available from ASTM International Headquarters. Order Adjunct No. . Original adjunct produced in 1965.