1 — NS stopper
Interchangeable ground joint — any NS stopper of the same code seals. PE supplied, PTFE optional.
Volumetric Flask, Class B
Routine-work flask with white enamel graduation.
Class B one-mark flasks for routine preparation work, batch-calibrated against Class A masters. White enamel ring mark and printed capacity panel, supplied with polyethylene stopper.
Material
Borosilicate glass 3.3 (ASTM E438 Type I, Class A)
Complies with
Ordering information 6 variants
| Cat. no. | Capacity / size | Class | Tolerance | Joint | Pack |
|---|---|---|---|---|---|
| VTN-102-25 | 25 mL | B | ±0.08 mL | NS 10/19 | 4 |
| VTN-102-50 | 50 mL | B | ±0.12 mL | NS 12/21 | 4 |
| VTN-102-100 | 100 mL | B | ±0.20 mL | NS 14/23 | 4 |
| VTN-102-250 | 250 mL | B | ±0.30 mL | NS 14/23 | 2 |
| VTN-102-500 | 500 mL | B | ±0.50 mL | NS 19/26 | 2 |
| VTN-102-1000 | 1000 mL | B | ±0.80 mL | NS 24/29 | 1 |
Why this one
- Batch calibration against serialised Class A masters
- Tolerance twice Class A per ISO 1042
- Economical for teaching and routine QC
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Also in volumetric glassware
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One-mark flask, individually calibrated and serialised.
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Straight-bore burette with leak-free PTFE stopcock.
Automatic Zero Burette, Pellet Pattern
Self-zeroing burette with reservoir for repetitive titration.