The establishment of common values and principles within an organization has become an ever-growing practice for the sustainable operation of organizations. The international standardization system, however, is a multi-level structure including international, regional and national standardization organizations that are expected to operate according to common principles set by the WTO. To ensure the effective application of previously set principles in an organization, an approach for the assessment of the level of implementation of these principles should be applied. The aim of the paper is to define a structure for the identification and assessment of the application of the WTO principles for standards development to specific stages of the standards development process. A literature review on the structure and organizational elements of the international standardization system is performed. An analysis and comparison of the purpose of the WTO principles is carried out, following a visualization of the common structure of the standards development process. Main conclusions and results: generally, assessments for the implementation of the WTO principles for standards development are performed considering overall operation of standardization organizations, however, a lack of assessment of the implementation of these principles in the standards development process itself can be identified. A structured scheme of the standards development process is created, identifying the stages where specific WTO principles for standards development may be applied and indicators for the assessment of the implementation of the principles are defined.