Certification of Household Metal Stairs in Brazil is mandatory and regulated by Inmetro.
The Household Metal Stairs are certified by product family and the certification model can be 5 or 7.
Product family? What does it mean?
Set of models, from the same brand, which have the same constructive characteristics – stair material, classification of the non-slip surface of the steps, items and accessories, existence of paint coating, nominal work load, step width, stair width, convergence, inclination for front and rear side, front and rear distance of the ladder support, distance between steps and between the lowest step and the ground, relative location of the spacer or lock, and can only differ by size, number of steps, specification the profile and material of the steps, provided that according to a previously specified pattern, the existence of reinforcements, their quantity and location and other characteristics that derive exclusively from these differentiations.
And what are the certification models?
Model 5: includes the evaluation and approval of the Quality Management System and the Customer Service Systematic of the supplier through audits and tests on samples that can be collected both at the factory and in the trade.
Model 7: batch certification, which is evaluated through product tests and evaluation of the Customer Service System. This modality is more common for imported products.