AS/NZS 8008:2022

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Timber — Finger-jointed structural timber — Performance requirements

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AS/NZS 8008:2022 Provides specifications for finger-jointed structural timber, which can be used by manufacturers, designers and users, to facilitate the safe use of this product in structures
KEYWORDS: Finger-jointed, structural timber

Header

About this publication

Preface

Introduction

1 Scope and general

1.1 Scope

1.2 Normative references

1.3 Terms and definitions

1.4 Symbols

2 Quality system requirements

2.1 General

2.2 Manufacturing specifications

3 General requirements

3.1 Structural properties of finished finger-jointed timber

3.1.1 General

3.1.2 Grading and verification methods

3.2 Durability

3.2.1 General

3.2.2 Adhesive bond performance

3.2.3 Finger-joint glue bond integrity

3.3 Utility

3.4 Moisture content

3.5 Product identification and labelling requirements

4 Qualification requirements

4.1 Qualification of structural properties

4.1.1 Properties required to be declared

4.1.2 Methods for determination of structural properties

4.2 Adhesive

4.3 Qualification of glue bond quality

4.3.1 Sampling

4.3.2 Testing

4.3.3 Acceptance criteria

4.4 Manufacturing process

4.5 Changes affecting qualification

5 Verification requirements

5.1 Structural properties

5.1.1 General

5.1.2 Analytical method

5.1.3 Empirical method

5.1.4 Proof-loading method

5.2 Verification of finger-joint glue bond quality

5.2.1 Sampling

5.2.2 Testing

5.2.2.1 Acceptance criteria

5.3 Utility, moisture content and identification requirements

Appendix A

A.1 General

A.2 Sampling

A.3 Testing

A.3.1 General

A.3.2 Test results

A.4 Verification requirements

A.4.1 General

A.4.2 Analysis

A.4.3 Evaluation

Appendix B

B.1 Scope

B.2 Specimens

B.3 Testing

B.3.1 General

B.3.2 Equipment

B.3.3 Preparation

B.3.4 Procedure

B.3.5 Test criteria

B.4 Acceptance criteria

Appendix C

C.1 Scope

C.2 Specimens

C.3 Testing

C.3.1 General

C.3.2 Equipment

C.3.3 Preparation

C.3.4 Procedure

C.3.5 Test results

C.4 Acceptance criteria

Appendix D

D.1 Scope

D.2 Specimens

D.3 Testing

D.3.1 General

D.3.2 Equipment

D.3.2.1 For pre-treatment A — Vacuum-pressure soak

D.3.3 For pre-treatment B — 72 h boil

D.3.3.1 For pre-treatment C — 6 h steam

D.3.3.2 For wood fibre evaluation

D.3.4 Preparation

D.3.4.1 General

D.3.4.2 For pre-treatment A — Vacuum pressure soak

D.3.4.3 For pre-treatment B — 72 h boil

D.3.4.4 For pre-treatment C — 6 h steam

D.3.5 Procedure

D.3.6 Test results

D.4 Acceptance criteria

D.5 Recording

Appendix E

E.1 Scope

E.2 Specimens

E.3 Testing

E.3.1 General

E.3.2 Equipment

E.3.3 Preparation

E.3.4 Procedure

E.3.5 Test results

E.4 Acceptance criteria

E.5 Recording

Appendix F

F.1 Assumptions

F.2 Algorithm for tension strength

Appendix G

G.1 General

G.2 Sampling

G.2.1 General

G.2.2 Size ranges

G.2.3 Number of specimens

G.3 Testing

G.3.1 General

G.3.2 Test results

G.4 Acceptance criteria

G.4.1 Calculation of 1-percentile value

G.4.2 Evaluation

Appendix H

Bibliography