EN 10204, officially titled "Metallic products — Types of inspection documents," is a European standard that defines the different types of inspection documents supplied to the purchaser. It does not specify material properties, tolerances, or testing methods. Instead, it answers a critical question:
Crucially, the testing must be witnessed or evaluated by a (e.g., a quality control lab that reports to a different management chain). This ensures internal independence. en 10204
The test results are representative but not traceable to the exact delivery. EN 10204, officially titled "Metallic products — Types
Type 2.2 is a step up. The manufacturer provides a document stating that the products comply with the order, and additionally supplies test results. However, these test results come from non-specific inspections – meaning they are based on the manufacturer’s own internal testing regime, not necessarily on tests performed on the specific delivered lot. The tests could be from previous similar production, from internal quality assurance batches, or from type tests. This ensures internal independence