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ASTM F959-07
Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners
Automaticky přeložený název:
Standardní specifikace pro Stlačitelná - Podložka - Type Přímé napínací indikátory pro použití s strukturálními Fasteners
NORMA vydána dne 1.4.2007
Informace o normě:
Označení normy: ASTM F959-07
Poznámka: NEPLATNÁ
Datum vydání normy: 1.4.2007
Kód zboží: NS-57073
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM F959-07 :
Keywords:
compressible-washer-type, direct tension indicators, DTI, indicators, ICS Number Code 21.060.01 (Fasteners in general)
Doplňující informace
| 1. Scope | ||||||||||||||||||||||||||||||||
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1.1 This specification covers the requirements for compressible-washer-type direct tension indicators capable of indicating the achievement of a specified minimum bolt tension in a structural bolt. 1.2 Four types of direct tension indicators in nominal diameter sizes 1/2 through 1 1/2 in. are covered: 1.2.1 Type 325—direct tension indicators for use with Specification A 325 or F 1852 Type I bolts, nuts, and washers. 1.2.2 Type 325–3—direct tension indicators for use with Specification A 325 Type 3 bolts, nuts, and washers. 1.2.3 Type 490—direct tension indicators for use with Specification A 490 or F 2280 bolts, nuts, and washers. 1.2.4 Type 490–3—direct tension indicators for use with Specification A 490 Type 3 bolts, nuts, and washers. 1.3 Direct tension indicators are intended for installation under either a bolt head or a hardened washer. (See Research Council on Structural Connections: Specification for Structural Joints Using ASTM A 325 or A 490 Bolts.) 1.4 The following precautionary statement pertains only to the test method portions, Section 12 and Appendix X1 of this specification: 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. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||
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