EN 326-2:2010+A1:2014

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and indices
5 Initial type testing (ITT)
6 Factory production control
Annex A (informative) - Example of initial type testing by
        variables - Evaluation of bending strength of
        particleboards
Annex B (informative) - Factory production control by
        variables - Example: Batch production
Annex C (informative) - Example of initial type testing
        attributes - Evaluation of bonding quality of plywood
Annex D (informative) - Control of factory production control
        records - Examples of the determination of differences
        between factory testing and external testing
Annex E (informative) - Example of the calculation of a linear
        correlation
Annex F (informative) - Example of the determination of a
        significant difference between the results from the
        alternative test procedure and from the standard
        reference test method in accordance with EN 13986
Bibliography

This European Standard specifies methods for internal initial type testing (ITT) and internal factory production control (FPC) as well as external control of wood-based panels for their compliance with EN 13986 and other relevant product specifications. However, it may also apply, at the option of the manufacturer, to wood-based panels applied for non-construction purposes.This European Standard is not applicable for the assessment of compliance with specifications of panels comprised in consignments. In such cases, EN 326-3 applies.For internal factory production control, if required, methods for the assessment of conformity of batches and of production over longer periods are given.For external control, if required, methods for the initial inspection of a factory and initial type testing of a product, and for the surveillance of the factory production control, are given.In the factory production control small test pieces are used. The statistics of evaluation is based on normal distribution.