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ASTM D6874-12

Standard Test Methods for Nondestructive Evaluation of Wood-Based Flexural Members Using Transverse Vibration

Automaticky přeložený název:

Standardní zkušební metody pro nedestruktivní hodnocení na bázi dřeva v ohybu, kteří používají příčného kmitání

NORMA vydána dne 1.10.2012

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Provedení	PDF - okamžité stažení - 1 709.30 Kč Tištěné - 1 709.30 Kč
Dostupnost	SKLADEM
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1 709.30 Kč

Informace o normě:

Označení normy: ASTM D6874-12
Poznámka: NEPLATNÁ
Datum vydání normy: 1.10.2012
Kód zboží: NS-36834
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Kategorie - podobné normy:

Nedestruktivní zkoušení

Anotace textu normy ASTM D6874-12 :

Keywords:
ICS Number Code 19.100 (Non-destructive testing)

Doplňující informace

Significance and Use

5.1 The dynamic modulus of elasticity provided by these test methods is a fundamental property for the configuration tested. This value can be related to static and other dynamic moduli of elasticity as measured on the same configuration.

5.1.1 The rapidity and ease of application of these test methods facilitate its use as a substitute for static measurements.

5.1.2 Dynamic modulus of elasticity is often used for surveys, for segregation of lumber for test purposes, and to provide indication of environmental or processing effect.

5.2 The modulus of elasticity, whether measured statically or dynamically, is often a useful predictor variable to suggest or explain property relationships.

1. Scope

1.1 These test methods cover the determination of the flexural stiffness and modulus of elasticity (E) properties of wood-based materials by nondestructive testing using transverse vibration in the vertical direction.

1.2 The test methods are limited to specimens having solid, rectangular sections.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 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

D7438-20	Standard Practice for Field Calibration and Application of Hand-Held Moisture Meters
D1990-19	Standard Practice for Establishing Allowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-Size Specimens
D4442-20	Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
E4-21	Standard Practices for Force Calibration and Verification of Testing Machines
D9-20	Standard Terminology Relating to Wood and Wood-Based Products
D4761-19	Standard Test Methods for Mechanical Properties of Lumber and Wood-Based Structural Materials
ISO 7626/1	Vibration and Shock-Experimental Determination of Mechanical Mobility--Part 1: Basic Definitions and Transducers Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
D2915-17(2022)	Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
D198-22a	Standard Test Methods of Static Tests of Lumber in Structural Sizes (Includes all amendments and changes 10/14/2022).
E1267-88	Guide for ASTM Standard Specification Quality Statements (Withdrawn 1996)