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Understanding Formaldehyde in OSB Panels

APA oriented strand board (OSB) is manufactured using phenol formaldehyde or MDI (diphenylmethane di-isocyanate) adhesives.  These are water proof, extremely stable and highly durable with very low formaldehyde emissions.

OSB manufactured in accordance with US Voluntary Product Standard PS2 easily meet the E1 formaldehyde emission limit of 0.124mg/m3 requirement of EN 300 and EN 13986.

The European standard for formaldehyde release is given in EN 3001 and Annex B of the harmonised standard for wood-based products EN 139862.  Both standards reference EN 717-13 test methodology for the initial type testing using a formaldehyde test chamber, and for the factory production control, the use of EN 1204.  EN 120 has been withdrawn and superseded by EN ISO 12460-5 but is still currently referenced in EN 13986 and is therefore retained in APA’s listing.

1   EN 300 : Oriented Strand Boards (OSB) – Definitions, classification and specifications
2  EN 13986 : Wood-based panels for use in construction – Characteristics, evaluation of conformity and marking
3  EN 717-1 : Wood-based panels – Determination of formaldehyde release – Formaldehyde emission by the chamber method
4  EN 120: Wood-based panels – Determination of formaldehyde content – Extraction method called the perforator method.

See also: Japanese Agricultural Standard (JAS) for Formaldehyde Emission. California Air Resource Board (CARB): measures on formaldehyde release.

 

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What is a ‘life cycle stage’ and how do these link to the environmental assessment of whole buildings?

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Whose responsibility is it to check that wood products being imported into the EU do not originate from illegally sourced timber supplies?

Does the EUTR require mills to provide any extra documentation for customs entry into the European Union?

Must all plywood and OSB panels carry a CE marking?

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The main standards are: EN 13986 and EN 300

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The main standards are: EN 13986, EN 636, EN 314, EN 635-3