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NEPLATNÁ ASTM F38-00(2014) 1.3.2014 náhled

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ASTM F38-00(2014)

Standard Test Methods for Creep Relaxation of a Gasket Material

Automaticky přeložený název:

Standardní zkušební metody pro Creep Uvolnění těsnění materiálu

NORMA vydána dne 1.3.2014

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Provedení	PDF - okamžité stažení - 1 774.70 Kč Tištěné - 1 774.70 Kč
Dostupnost	SKLADEM
Cena	1 774.70 Kč bez DPH
1 774.70 Kč

Informace o normě:

Označení normy: ASTM F38-00(2014)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.3.2014
Kód zboží: NS-55096
Počet stran: 9
Přibližná hmotnost: 27 g (0.06 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Kategorie - podobné normy:

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Anotace textu normy ASTM F38-00(2014) :

Keywords:
creep relaxation, deflection, gasket material, platens, relaxometer, strain, stress, temperature, torque bolt, torque loss, ICS Number Code 23.100.60 (Filters, seals and contamination of fluids), 73.080 (Non-metalliferous minerals)

Doplňující informace

Significance and Use

4.1 These test methods are designed to compare related materials under controlled conditions and their ability to maintain a given compressive stress as a function of time. A portion of the torque loss on the bolted flange is a result of creep relaxation. Torque loss can also be caused by elongation of the bolts, distortion of the flanges, and vibration; therefore, the results obtained should be correlated with field results. These test methods may be used as a routine test when agreed upon between the consumer and the producer.

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

1.1.1 Test Method A—Creep relaxation measured by means of a calibrated strain gauge 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 standard. The values given in parentheses are for information only.

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.