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ASTM D7469-21

Standard Test Methods for End Joints in Structural Wood Products

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NORMA vydána dne 15.7.2021

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Provedení	Elektronické PDF - 1 948.90 Kč Tištěné - 1 948.90 Kč
Dostupnost	SKLADEM
Cena	1 948.90 Kč bez DPH
1 948.90 Kč

Informace o normě:

Označení normy: ASTM D7469-21
Poznámka: NEPLATNÁ
Datum vydání normy: 15.7.2021
Kód zboží: NS-1032801
Počet stran: 17
Přibližná hmotnost: 51 g (0.11 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM D7469-21 :

Keywords:
cyclic delamination, end joint, finger joint, lumber, mechanical properties, proofloading, scarf joint, strength,, ICS Number Code 91.080.20 (Timber structures)

Doplňující informace

Significance and Use

4.1?These test methods are applicable to specimens with or without specific conditioning regimens. Tests are permitted to be performed on specimens that are not at moisture equilibrium, such as under production conditions in a plant, or on specimens that have been conditioned to specified moisture content or durability conditioning prior to testing.

4.2?These test methods can be used as follows:

4.2.1?To standardize the determination of strength properties for the material and joint being tested.

4.2.2?To investigate the effect of parameters that may influence the structural capacity of the joint, such as joint profile, adhesive type, moisture content, temperature, and strength-reducing characteristics in the assembly.

4.3?These test methods do not intend to address all possible exposure or performance expectations of end joints. The following are some performance characteristics not considered:

4.3.1?Long-term strength and permanence of the wood adhesive.

4.3.2?Time dependent mechanical properties of the joint.

4.3.3?Elevated temperature performance of the joint.

1. Scope

1.1?This standard provides test methods for evaluating the structural capacity and integrity of end joints in structural wood products.

1.2?Off-line test methods include: 1.3?In-line test methods include: (1) Tension Proofload and (2) Bending Proofload.

1.4?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.

1.5?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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6?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.

2. Referenced Documents

D2915-17(2022)	Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
E6-23a	Standard Terminology Relating to Methods of Mechanical Testing (Includes all amendments and changes 3/29/2023).
D4442-20	Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
D5456-21e1	Standard Specification for Evaluation of Structural Composite Lumber Products (Includes all amendments and changes 6/9/2021).
D2559-12a(2018)	Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions (Includes all amendments and changes 8/10/2018).
D1183-03(2019)	Standard Practices for Resistance of Adhesives to Cyclic Laboratory Aging Conditions
D1151-00(2022)	Standard Practice for Effect of Moisture and Temperature on Adhesive Bonds
D1101-97a(2018)	Standard Test Methods for Integrity of Adhesive Joints in Structural Laminated Wood Products for Exterior Use (Includes all amendments and changes 8/9/2018).
D198-22a	Standard Test Methods of Static Tests of Lumber in Structural Sizes (Includes all amendments and changes 10/14/2022).
E177-20	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
D9-20	Standard Terminology Relating to Wood and Wood-Based Products
E4-21	Standard Practices for Force Calibration and Verification of Testing Machines
D7438-20	Standard Practice for Field Calibration and Application of Hand-Held Moisture Meters
D7247-17	Standard Test Method for Evaluating the Shear Strength of Adhesive Bonds in Laminated Wood Products at Elevated Temperatures
D4761-19	Standard Test Methods for Mechanical Properties of Lumber and Wood-Based Structural Materials
D4688-99	Standard Test Method for Evaluating Structural Adhesives for Finger Jointing Lumber
D3434-00(2018)	Standard Test Method for Multiple-Cycle Accelerated Aging Test (Automatic Boil Test) for Exterior Wet Use Wood Adhesives

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