- Synonyms: TRIS-Borate-EDTA - Density: 1,03 g/cm3 - Tariff number: 3822 00 00 00 - Applications: analytical chemistry, in buffer solutions, for electrophoresis, for determination of: nucleic acids. SPECIFICATIONS pH : 8,30 specification range: 8,29 - 8,31 uncertainty : ± 0,01 composition: tris-(hydroxymethyl)-aminomethane 0,45 M / EDTA 0,01 M / boric acid DNases, RNases: non detected