| Subject | English | Spanish |
| nat.sc. | analytical purity | pureza específica |
| environ. | biological water purity survey | perfil de pureza biológica del agua |
| agric. | carbon dioxide purity | pureza del dióxido de carbono |
| chem. | chemical purity | pureza química |
| health., food.ind., UN | Codex Alimentarius purity criteria | criterios de pureza del Codex alimentario |
| meas.inst. | color purity control | regulador de pureza de color |
| commun. | color purity magnet | imán anular de pureza |
| earth.sc., el. | colorimetric purity | pureza colorimétrica |
| meas.inst. | colour purity control | regulador de pureza de color |
| commun. | colour purity magnet | imán anular de pureza |
| health., food.ind., chem. | criterion of purity | criterio de pureza |
| agric., tech., coal. | degree of purity | grado de pureza |
| met. | degree of purity of steel | grado de pureza del acero |
| tech., met. | détermination of aluminium purity by the thermal effect of its reaction with HCl RF Werkstoffe u. Korrosion | determinación de la pureza del aluminio por efecto térmico de su reacción con ácido clorhídrico |
| earth.sc. | excitation purity | pureza de excitación |
| chem. | gas-chromatographic purity | pureza para cromatografía de gases |
| agric., food.ind. | general criteria of purity | criterios de pureza generales |
| video. | grey-scale non-purity | no-pureza de la escala de grises |
| video. | grey-scale non-purity | error de seguimiento al blanco |
| met. | guaranteed purity | pureza garantizada |
| IT | high-purity alumina | alúmina de alta pureza |
| chem. | high-purity gas | gas de gran pureza |
| earth.sc. | high purity plasma | plasma de gran pureza |
| el. | high purity polarised signal | señal polarizada de gran pureza |
| el. | high purity polarized signal | señal polarizada de gran pureza |
| nucl.phys. | high purity semiconductor detector | detector de semiconductor de alta pureza |
| met. | high-purity silica sand | arena de sílice |
| met. | high-purity silica sand | arena de cuarzo |
| tech., met. | high purity steel | acero de gran pureza |
| gen. | In some cultures, white symbolizes purity | En algunas culturas, el blanco simboliza pureza |
| tech., mater.sc. | iron of high purity | hierro de alta pureza |
| health. | limiting purity value | valor límite |
| health. | limiting purity value | cifra umbral |
| med. | pharmaceutical degree of purity | grado de pureza farmacéutico |
| chem. | plasma purity | pureza del plasma |
| coal. | processing of high purity metals | tratamiento de metales de gran pureza |
| commun. | purity adjustment | ajuste de pureza |
| agric. | purity analysis | control de pureza |
| automat., meas.inst. | purity control | regulador de pureza de color |
| health., food.ind., chem. | purity criterion | criterio de pureza |
| commun. | purity magnet | imán anular de pureza |
| earth.sc., tech. | purity meter | indicador de pureza |
| nat.sc., agric. | purity of a type | pureza del tipo |
| nat.sc., agric. | purity of a variety | pureza de la variedad |
| el. | purity of an emission | pureza de una emisión |
| patents. | purity of language | puridad de lenguaje |
| med. | purity of species | pureza de las especies |
| agric. | Purity of strain | pureza de la variedad |
| life.sc. | purity of the active substance | pureza de la sustancia activa |
| agric. | purity of variety | pureza varietal |
| agric. | purity of variety | pureza de la variedad |
| law, agric. | purity requirements | ley de la pureza |
| health., chem. | radiochemical purity | pureza radioquímica |
| earth.sc. | radionuclidic purity | pureza radiactiva |
| chem., met. | recrystallization is thus a function of the purity of the steel | por lo tanto, la recristalización es función de la pureza del acero |
| nat.sc., agric. | seed purity | pureza de las semillas |
| agric. | seed purity | pureza de semilla |
| agric., food.ind. | specific criteria of purity | criterios de pureza específicos |
| el. | spectral purity | pureza espectral |
| el. | spectral purity of a synthesiser output | pureza espectral de la salida de un sintetizador |
| el. | spectral purity of a synthesizer output | pureza espectral de la salida de un sintetizador |
| agric. | varietal purity | identidad varietal |
| agric. | varietal purity | identidad para variedad |
| agric. | varietal purity | pureza varietal |
| agric. | varietal purity | identidad de la variedad |
| agric. | varietal purity | pureza de la variedad |
| meas.inst. | water purity meter | salinómetro eléctrico |
| chem., meas.inst. | water purity meter | halómetro eléctrico |