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ASTM D6383/D6383M-99(2021)
Standard Practice for Time-to-Failure (Creep-Rupture) of Adhesive Joints Fabricated from EPDM Roof Membrane Material
NORMA vydaná dňa 1.12.2021
Informácie o norme:
Označenie normy: ASTM D6383/D6383M-99(2021)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.12.2021
Kód tovaru: NS-1043992
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D6383/D6383M-99(2021) :
Keywords:
adhesive testing, creep, EPDM, joints, laboratory exposure, practice, roofing, seams, test conditions, time-to-failure,, ICS Number Code 91.060.20 (Roofs)
Doplňujúce informácie
| Significance and Use | ||||||||
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5.1An important factor affecting the performance of seams of EPDM membranes is their ability to remain bonded over the membrane's expected service life. Time-to-failure tests provide a means of characterizing the behavior of joints under constant load over time. Note 1:Table 1 is based
on the results of an industry government consortium study on
creep-rupture resistance (time-to-failure) of EPDM adhesive
joints.5.2Time-to-failure tests complement other
mechanical tests such as strength for characterizing joints of EPDM
roof membranes, and can be incorporated in specifications for
adhesives for joining EPDM roof membrane material.
5.3This practice, which is specific to EPDM joints, complements Test Method D5405/D5405M that provides general requirements for the preparation and creep-rupture testing of joints fabricated from any nonbituminous organic roof membrane material. 5.4Laboratory experience in conducting time-to-failure tests of joints EPDM roof membranes has shown that specimens are less creep-resistant under peel loading than under shear loading. Consequently, the majority of the tests stipulated in this practice are performed under peel loading. 5.5This practice does not develop time-to-failure data on all environmental conditions to which EPDM adhesive seams can be subjected in service. |
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| 1. Scope | ||||||||
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1.1This practice covers sample preparation temperatures, test parameters, and specimen exposure conditions that are applicable when Test Method D5405/D5405M is used for conducting time-to-failure (creep-rupture) tests of adhesive joints fabricated from ethylene-propylene-diene terpolymer (EPDM) roof membrane material. 1.2This practice is applicable to joints fabricated in the laboratory from EPDM roof membrane materials and adhesives received from suppliers, and to joints prepared from EPDM seams sampled from field installations. 1.3The joints are bonded using preformed tape or liquid-based adhesives, and EPDM roof membrane materials that are non-reinforced, fabric- or scrim-reinforced, and fabric backed. Primers are also used as recommended for the specific adhesive. 1.4This practice contains notes that are explanatory and are not part of the mandatory requirements of this practice. 1.5The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.6This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||
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