The quality management system of Cruz Martins & Wahl, Lda (CMW) is certified according to NP EN ISO 9000 standards since 1995. In the seek of continuous improvement, it's been certified by TÜV in 2005, according to the demanding European Directive  PED 97/23/EC necessary for suppliers of components and equipment for pressure. CMW has also certifications on the manufacture of valves in austenitic stainless steel according to EN 10213-4, issued by the Germanischer Lloyd's in 1998, and on the manufacture of parts for pressure and steam, according to AD2000 - Merkblatt W0 / TRD 100, issued by TÜV in 2003.

In the control of the manufacturing process, CMW uses techniques of optical emission spectrometry and X-ray fluorescence for the analysis of the chemical composition of molten metal, along with infrared analysis of carbon, sulfur and nitrogen, to ensure compliance with the most demanding specifications. A mechanical testing laboratory, equipped with machines for tensile tests, resilience and toughness, allows the verification of the mechanical properties of materials. Quality control of the final product is based on a strict dimensional control and the use of techniques for nondestructive testing to ensure the quality of the parts. These tests are performed by skilled technicians, certified according to EN 473 and ASNT SNT-TC-1A.

The Environment, Health and Safety at work have always been primary concerns at CMW, reflected in the creation of an environmental management system and HST in 2002. Complying with environmental legislation in force, CMW monitors gas emissions through periodic measurements, performs the full management of solid and liquid waste and is duly authorized to receive waste iron and steel.

After reaching its first objective, the completion of the environmental licensing process, CMW now has as a new goal to be certified according to NP EN ISO 14000 standards.