ISO 10033-1-2011 PDF

Full title and description

ISO 10033-1:2011 — Laminated Veneer Lumber (LVL) — Bonding quality — Part 1: Test methods. This International Standard specifies standardized laboratory and production-control test methods for determining the bonding quality of LVL bonded with thermosetting resin, including specimen preparation, pre-treatment cycles, test procedures and reporting rules.

Abstract

Part 1 of ISO 10033 provides methods to quantify delamination and assess glueline performance of laminated veneer lumber (LVL) manufactured with thermosetting adhesives. The standard defines sampling, specimen dimensions, required apparatus, a set of pre-treatment (conditioning) cycles and the evaluation/reporting criteria needed to classify bonding quality when used together with the requirements of ISO 10033-2.

General information

• Status: Published (International Standard; confirmed at review stage).
• Publication date: April 2011 (edition 1, 2011).
• Publisher: ISO — International Organization for Standardization.
• ICS / categories: 79.060.99 (wood-based panels / LVL-related standards).
• Edition / version: Edition 1 (2011). An amendment (Amd 1:2024) has been published for Part 1.
• Number of pages: 17 pages.

Key bibliographic facts above are taken from the ISO catalogue entry and standard distributors.

Scope

ISO 10033-1:2011 applies to LVL bonded with thermosetting resins and specifies test methods for determining bonding quality (delamination and glueline integrity) under defined conditioning regimes. It is intended for laboratory evaluation and for supporting the classification of bonding quality given in ISO 10033-2; alternative correlated methods may be used only if validated. The scope and normative references include related documents such as ISO 16999 (sampling and cutting of test pieces) and relevant plywood bonding standards.

Key topics and requirements

• Sampling and specimen geometry — typical test specimens are square pieces of the full LVL thickness, normally 75 mm × 75 mm (tolerance ±1 mm) unless limited by the sample; sampling follows ISO 16999.
• Pre-treatment (conditioning) cycles — defined sequences used to stress the bond before evaluation, including: 24 h cold soak, 6 h boil, BDB (boil–dry–boil), vacuum‑pressure (VP) cycle, 72 h boil, steam conditioning and hot‑water soak. Each pre‑treatment has specified times, temperatures and cooling steps.
• Bonding classes and post-treatment drying — the standard defines bonding classes and associated post‑treatment drying regimes (for example, drying at specified temperatures for bonding class 1, 2 or 3 and repeating cycles for higher severity classes).
• Delamination measurement and acceptance criteria — methods to measure percentage delamination and rules for reporting results so they can be used to determine bonding quality class (used together with Part 2 requirements).
• Required apparatus, specimen preparation, and reporting rules — includes details for ovens, baths, vacuum/pressure equipment, and standardized report formats to ensure repeatable and comparable results.

Typical use and users

ISO 10033-1 is used by LVL manufacturers, product development and quality laboratories, testing and certification bodies, research institutes, and standards committees. It supports internal production control, type approval testing, supplier qualification and regulatory compliance where bonding quality of LVL is relevant for structural or non‑structural applications.

Related standards

Directly related documents include ISO 10033-2:2011 (Bonding quality — Part 2: Requirements), ISO 16999 (Wood‑based panels — Sampling and cutting of test pieces) and plywood bonding standards such as ISO 12466‑1/2. ISO 10033 is referenced by other LVL and timber-structure standards that call for bonding‑quality verification.

Keywords

LVL, laminated veneer lumber, bonding quality, bond test methods, delamination, adhesive, thermosetting resin, glueline, conditioning cycles, ISO 10033.

FAQ

Q: What is this standard?

A: ISO 10033-1:2011 is the part of the ISO 10033 series that specifies test methods for assessing the bonding quality of laminated veneer lumber (LVL) bonded with thermosetting adhesives. It provides the procedures used to condition specimens, measure delamination and report results.

Q: What does it cover?

A: It covers specimen sampling and dimensions, apparatus, a set of pre-treatment/conditioning cycles (e.g., cold soak, boiling, boil–dry–boil, vacuum–pressure, steam), drying and evaluation procedures, and the reporting rules needed to quantify delamination and evaluate glueline performance. These methods are intended to be used with ISO 10033-2, which sets the acceptance requirements.

Q: Who typically uses it?

A: LVL producers, materials and structural testing laboratories, certification bodies, standards committees and engineers specifying or verifying LVL performance use this standard for production control, qualification testing and compliance verification.

Q: Is it current or superseded?

A: The 2011 edition (Edition 1) remains the published Part 1; the record shows the document was confirmed in subsequent ISO reviews and an amendment (ISO 10033‑1 Amd 1:2024) has been issued for Part 1. Users should check the ISO catalogue or national standards bodies for the latest amendment texts and confirmation status before relying on the standard for formal compliance.

Q: Is it part of a series?

A: Yes — ISO 10033 is a multi‑part series. Part 1 specifies test methods (this document) and Part 2 sets the bonding quality requirements (ISO 10033-2:2011). Other related timber and plywood bonding standards (for example ISO 12466 series) are normative or informative references.

Q: What are the key keywords?

A: Key keywords are LVL, laminated veneer lumber, bonding quality, delamination, adhesive, thermosetting resin, test methods, conditioning cycles, glueline.