Quality Guidelines


CTA - Environmental Services has in its daily processes Quality principles and guidelines. Its Integrated Management System (SGI) brings achievements such as ISO 9001: 2015 and 17025: 2017 accreditation.


Check out some of the services accredited by ISO 17025: 2017


Area of activity / product: environment - raw water; residual water; saline / brackish water

Chemical tests: pH determination by the electrometric method; determination of electrolytic conductivity; determination of salinity by the electrometric method; Determination of Dissolved; Oxygen by membrane electrode method and Temperature determination.

Activity / Product Area: Environment - Raw Water

Sampling: Water in springs, mines, streams, dams, ponds and rivers.

Area of activity / product: environment - wastewater

Sampling: Water in estuaries.

Area of activity / product: environment - saline / brackish water

Sampling: water in marine environments.

Area of activity / product: environment - sediment

Sampling: sediment in springs, mines, streams, dams, lagoons, rivers, estuaries and marine environment.