Parts Per Million (PPM) parts per million (ppm) Parts Per Million (PPM) is a unit of measurement to determine how many Total Dissolved Solids (TDS) are in the water you feed your plants. It is a way to assess how many nutrients are in the water.Testing PPM and EC Related Terms EC / TDS / pH level << Back to Glossary Related Posts:Two Men Found in Possession of More Than $4 Million…Man Charged in NSW Over $6 Million Worth of Cannabis…Man behind a $1.8 Million Drug Distribution Ring in…$2 Million of Cannabis Found by Police in the…Man Charged with Over $3 million Worth of Cannabis…$6 Million Dollars of Cannabis Seized and Four…
