CertificatesHigh quality standards
The manufacturer of windows and exterior doors has established a system of in-plant production control in accordance with EN 14351-1, which guarantees the permanent properties of windows and exterior doors. The content of in-plant production control is described in the corresponding certification model.
In-plant production control (WPK).
In-plant production control according to EN 14351-1 minimum shall include the following items:
Organization, documentation, processes, scale of processes and sampling
Qualifications, training and education
range of controls, their certification and support in working order
Raw materials and components
Quality/compliance, as well as compliance of supplied components and components and their control
planning and implementation of production and controlled conditions
Verification and evaluation of products
documentary and planned control over observance of the declared operational production characteristics
Traceability and marking
traceability of products by marking or product code
Documented procedures for handling defective products
Procedures for troubleshooting and subsequent error prevention and elimination of the causes of defects