Sentence examples for ppm to prevent from inspiring English sources

Siloxanes are cleaned to about 1 ppm to prevent SiO2 deposition on pistons, heat exchangers, or catalyst for emission control, and sulfur compounds are cleaned to several ppm for most potential applications [2].

The metals were filed inside a glove box under Ar atmosphere (oxygen level: <1 ppm, water level: <1 ppm) to prevent oxidation.

Keep your chlorine level between 1.0 and 3.0 ppm to prevent algae from developing in your swimming pool.

Isotopically nonspecific spectra are collected using the same pulse sequence but with the carbon transmitters tuned 300 ppm off resonance to prevent the filtering elements from functioning.

Early detection of the H2S at concentrations of 10 ppm in air is essential to prevent its toxic influence at higher concentrations.

SO2 was adjusted to 50 ppm free in each balloon to prevent wild yeast fermentation.

Feed supplemented with 2500 ppm ZnO has previously been shown to prevent or decrease the severity of PWD [ 14, 15].

The fact that hif-1 has only a partial effect to prevent protein aggregation in 1000 ppm O2 could indicate that there are additional protective mechanisms needed to protect proteostasis in this condition.

Our observation that wild-type animals, with fully functional HIF-1, cannot maintain proteostasis in 1000 ppm O2 (Fig. 1B) suggests that hif-1 is not sufficient to prevent the disruption of proteostasis in these conditions, in contrast to the situation in 5000 ppm O2 (Fig. 4B).

(227) In 1987 the World Health Organization (WHO) recommended a concentration < 0.08 ppm (100 μg m−3) for short-term exposure (0.5 h) to prevent nose and throat irritation.

The fact that hif-1 is necessary to prevent hypoxia-induced protein aggregation in 5000 ppm O2 but not able to protect proteostasis in wild-type animals exposed to 1000 ppm O2 could indicate that the perturbation of proteostasis is mechanistically different in these two conditions.