- Synonyms: TRIS-Borate-EDTA rr- Density: 1,03 g/cm3r- Tariff number: 3822 00 00 00r- Applications: analytical chemistry, in buffer solutions, for electrophoresis, for determination of: nucleic acids.rrSPECIFICATIONSrpH : 8,30rspecification range: 8,29 - 8,31runcertainty : ± 0,01rrcomposition: tris-(hydroxymethyl)-aminomethane 0,45 M / EDTA 0,01 M / boric acid rDNases, RNases: non detectedr