VWR® Burettes, with PTFE Key StopcockToimittaja: Avantor
612-6693EA 77.6 EUR612-6693 612-6691 612-6692
VWR® Burettes, with PTFE Key Stopcock
Borosilicate 3.3 glass, class AS.
- High chemical and thermal resistance
- Schellbach stripe for accurate meniscus reading
- Stopcock with PTFE key
- High contrast blue enamel graduations
- Batch certificate included
To avoid material damaging friction between the burette and the stopcock and to ensure tightness, joint grease is necessary when working with burettes that have a glass stopcock. After use the joint grease must be removed as the burette tip could become contaminated. This step is not necessary when working with burettes with a PTFE key stopcock.
Sertifikaatit: DIN EN ISO 385