出典:Wikipedia
出典:『Wikipedia』 (2011/01/10 03:43 UTC 版)
Micro Essential Laboratory, Inc., founded by Walter Florin in 1934, is a manufacturer and global supplier of Hydrion pH Test Papers, Sanitizer Test Kits, pH Buffer Standards, and Specialty Test Papers. The company is the original manufacturer of Hydrion and pHydrion pH products.