Sentence examples for ppm were collected from inspiring English sources

In this work, produced water samples with total dissolved solids (TDS) values of 18,000 102,000 mg/L (ppm) were collected from an oilfield, a coal-bed methane field, and a coal mine in the Illinois Basin of the United States and were treated by selected conventional pretreatment processes followed by a reverse osmosis desalination process.

Water suppression was achieved by irradiating the water peak during the relaxation delay, and 16 K data points spanning a spectral width of 12.15 ppm were collected.

In the CPMG experiment a relaxation decay of 3 s was applied and 32 K data points spanning a spectral width of 17.36 ppm were collected.

A total of 128 transients over a spectral region of 16.7 ppm were collected into 32 K points during 1.64 sec.

In all NMR experiments water suppression was achieved by irradiating the water peak during the relaxation delay of 5 s and 16 K data points spanning a spectral width of 13.03 ppm were collected.

Clean water with less than 0.5 ± 0.1 ppm was collected from the membrane permeate outlet at a rate of 11 15 kg−1 h−1 m−2.

The sample with the highest concentration of BD (83.1 ppm) was collected from the sewer exit in the workshop and was only observed once.

Ammonia samples (in gaseous form, ca. 300 ppm (v/v)) were prepared from a solution of 25% NH3in water (Fluka), whereas TMA samples (in gaseous form, ca. 1,500 ppm (v/v)) were collected from a solution of 45% TMA in water (Fluka).

Captured fish were anaesthetized using a mixture of clove oil and stream water (10 15 ppm), fin clips were collected and stored in 95% ethanol (28 44 individuals per site), and fish were released back to sites from which they were collected.

Typically, in the standard one-dimensional and CPMG experiments, the spectral width was 20 ppm and 256 transients were collected into 32 k data points.

The average soil lead concentration from household samples analyzed by XRF was 7,959 ppm (range 421 to > 100,000 ppm) in village A and 3,298 ppm (range 45 to > 100,000 ppm) in village B. Four water samples were collected and sent to a commercial environmental testing laboratory in the United States for analysis (Bureau Veritas Laboratory, Novi, MI).