ASTM D7249/D7249M Standard Test Method for Facing Properties of Sandwich Constructions by Long Beam Flexure
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- Техэксперт: Машиностроительный комплекс
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- ASTM D7202 Standard Test Method for Determination of Beryllium in the Workplace by Extraction and Optical Fluorescence Detection
- ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ASTM E855 Standard Test Methods for Bend Testing of Metallic Flat Materials for Spring Applications Involving Static Loading
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
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- ASTM D7202 Standard Test Method for Determination of Beryllium in the Workplace by Extraction and Optical Fluorescence Detection
- ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ASTM E855 Standard Test Methods for Bend Testing of Metallic Flat Materials for Spring Applications Involving Static Loading
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
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- ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ASTM E855 Standard Test Methods for Bend Testing of Metallic Flat Materials for Spring Applications Involving Static Loading
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
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- ASTM E855 Standard Test Methods for Bend Testing of Metallic Flat Materials for Spring Applications Involving Static Loading
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
- ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
- ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
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- Картотека зарубежных и международных стандартов
ASTM International
Standard Test Method for Facing Properties of Sandwich Constructions by Long Beam Flexure
N D7249/D7249M
Annotation
This test method covers determination of facing properties of flat sandwich constructions subjected to flexure in such a manner that the applied moments produce curvature of the sandwich facing planes and result in compressive and tensile forces in the facings. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb).
The 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 non-conformance with the standard.
Within the text, the inch-pound units are shown in brackets.
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.
NOTE 1—Alternate procedures for determining the compressive strength of unidirectional polymer matrix composites materials in a sandwich beam configuration may be found in Test Method D5467/ D5467M.
This 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.



