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ASTM D4761-13

Standard Test Methods for Mechanical Properties of Lumber and Wood-Base Structural Material

Automaticky přeložený název:

Standardní zkušební metody pro mechanické vlastnosti řeziva a Wood-základní konstrukční materiál

NORMA vydána dne 1.4.2013

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Provedení	PDF - okamžité stažení - 2 214.70 Kč Tištěné - 2 214.70 Kč
Dostupnost	SKLADEM
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2 214.70 Kč

Informace o normě:

Označení normy: ASTM D4761-13
Poznámka: NEPLATNÁ
Datum vydání normy: 1.4.2013
Kód zboží: NS-28467
Počet stran: 11
Přibližná hmotnost: 33 g (0.07 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Kategorie - podobné normy:

Desky na bázi dřeva obecně
Dřevo. Kulatina na řezivo. Řezivo

Anotace textu normy ASTM D4761-13 :

Keywords:

lumber, mechanical properties, wood-base, ICS Number Code 79.040 (Wood, sawlogs and sawn timber), 79.060.01 (Wood-based panels in general)

Doplňující informace

Significance and Use

4.1 These test methods provide procedures that are applicable under true field conditions, such as in a plant with specimens not at moisture equilibrium.

4.2 The data established by these test methods can be used as follows:

4.2.1 Develop strength and stiffness properties for the population represented by the material being tested (that is, individual grades, grade combinations, species, species groups, or any other defined, identifiable sample).

4.2.2 Confirm the validity of strength and stiffness properties for the population represented by the material being tested.

4.2.3 Investigate the effect of parameters that may influence the strength and stiffness properties of the material, such as moisture content, temperature, knot size and location, or slope of grain.

4.3 The procedures chosen in accordance with these test methods shall be fully documented in the report to facilitate correlation with test results obtained through the use of traditional procedures, such as those set forth in Test Methods D198.

1. Scope

1.1 These test methods cover the determination of the mechanical properties of stress-graded lumber and other wood-base structural material.

1.2 These test methods appear in the following order:

Section

Bending edge-wise

Bending flat-wise:

Center point loading

Third point loading

Axial strength in tension

Axial strength in compression

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

D4442-20	Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
D2915-17(2022)	Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
D9-20	Standard Terminology Relating to Wood and Wood-Based Products
NIST Voluntary Product Standard PS20	American Softwood Lumber Standard
E177-20	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
D198-22a	Standard Test Methods of Static Tests of Lumber in Structural Sizes (Includes all amendments and changes 10/14/2022).
D7438-20	Standard Practice for Field Calibration and Application of Hand-Held Moisture Meters
E4-21	Standard Practices for Force Calibration and Verification of Testing Machines
E6-23a	Standard Terminology Relating to Methods of Mechanical Testing (Includes all amendments and changes 3/29/2023).