| Subject | English | Spanish |
| polit. | International Union of Testing and Research Laboratories for Materials and Structures | Unión Internacional de Laboratorios de Ensayos e Investigaciones sobre Materiales y Estructuras |
| tech., mater.sc. | testing of materials | control de las fabricaciones |
| environ. | testing of materials The complex of tests performed in order to ascertain the characteristics and behaviour of materials; they are classified in physical and chemical tests, mechanical tests and technological tests | prueba de materiales |
| environ. | testing of materials | prueba de materiales |
| tech., mater.sc. | testing of materials | comprobación de las fabricaciones |
| gen. | testing of raw materials | control de materias primas |