| Cat. No. | Ext. Ø mm | Height mm | Wall thickness mm | PK | |
|---|---|---|---|---|---|
| 7690080 | 8 | 70 | 0.5 | 100 | |
| 7690081 | 10 | 100 | 0.5 | 100 | |
| 7690082 | 12 | 75 | 0.5 | 100 | |
| 7690083 | 12 | 100 | 0.5 | 100 | |
| 7690084 | 14 | 130 | 0.5 | 100 | |
| 7690085 | 16 | 130 | 0.6 | 100 | |
| 7690086 | 16 | 160 | 0.6 | 100 | |
| 7690087 | 18 | 180 | 0.6 | 100 | |
| 7690088 | 20 | 180 | 0.6 | 100 |
LABSOLUTE® test tubes made of borosilicate glass 4.9 have a beaded rim and a wall thickness of 0.5 - 0.6 mm. Despite their thin walls they are relatively unaffected by major changes in temperature and local heating. They are resistant to cold lyes/alkaline solutions and strong acids, with the exception of hydrofluoric acid and hot, concentrated phosphoric acid.
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