Glassco Erlenmeyer Flask — Conical with NS Ground Glass Joint
The Glassco Erlenmeyer conical flask with NS ground glass joint is one of the most versatile and widely used items of laboratory glassware. Manufactured from borosilicate 3.3 glass in compliance with ISO standards, these flasks combine the practical benefits of the conical Erlenmeyer form — stable base, easy swirling, and reduced evaporation — with the flexibility of an NS ground glass neck joint for connection to condensers, stoppers, and standard laboratory fittings.
Available in capacities from 50mL to 2000mL with NS 14/23 joint on smaller sizes and NS 29/32 on larger capacities, these flasks are supplied from Glassco’s European warehouse in the Netherlands for fast delivery across Ireland.
Key Features
Conical Erlenmeyer Form
The classic conical flask shape provides a wide stable base, tapered body for easy swirling without spillage, and a narrow neck that reduces evaporation during mixing and incubation — making Erlenmeyer flasks the most versatile general-purpose laboratory flask across pharmaceutical, research, microbiological, and analytical applications.
NS Ground Glass Joint
The NS standard taper ground glass joint enables connection to condensers, adapters, and standard laboratory glassware fittings — extending the range of applications beyond open-neck use to reflux, distillation, and closed-system reaction setups.
ISO Compliant — Borosilicate 3.3 Glass
Manufactured from borosilicate 3.3 glass to ISO standards, providing excellent chemical resistance to acids, bases, and organic solvents, along with good thermal stability for heating and autoclaving applications.
White Printing
Durable white capacity and graduation markings for clear identification and volume estimation during routine laboratory use.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Glassco |
| Type | Erlenmeyer Conical Flask with NS Joint |
| Glass Type | Borosilicate 3.3 |
| Standard Compliance | ISO |
| Neck Type | NS Ground glass standard taper joint |
| Printing | White |
| Available Capacities | 50mL, 100mL, 250mL, 500mL, 1000mL, 2000mL |
| Supply Origin | Glassco European Warehouse, Netherlands |
Capacity, NS Joint and Stock Reference
| Capacity | NS Joint | OD × H (mm) | Item Code | |
|---|---|---|---|---|
| 50mL | NS 14/23 | 51 × 85 | EU071.202.08 | |
| 50mL | NS 29/32 | 51 × 85 | EU071.202.10A | |
| 100mL | NS 14/23 | 64 × 105 | EU071.202.11 | |
| 100mL | NS 29/32 | 64 × 105 | EU071.202.14 | |
| 250mL | NS 29/32 | 85 × 140 | EU071.202.20 | |
| 500mL | NS 29/32 | 105 × 175 | EU071.202.23 | |
| 1000mL | NS 29/32 | 131 × 220 | EU071.202.26 | |
| 2000mL | NS 29/32 | — | EU071.202.28 | 2 |
Applications
- Titration — standard receiving flask for acid-base, complexometric, and redox titration procedures
- Culture growth — shaker flask for microbial and cell culture growth with reduced evaporation via narrow neck
- General mixing and solution preparation — swirling and mixing of reagents, buffers, and solutions across routine laboratory workflows
- Reflux assemblies — connection to condenser via NS joint for heating under reflux
- Pharmaceutical QC — general solution preparation and reagent handling in regulated laboratory environments
Availability in Ireland
Available from Varen Scientific — Ireland’s authorised distributor for Glassco laboratory glassware, supplied from the European warehouse in the Netherlands. For further information refer to ISO laboratory glassware guidance. To request a quote use the Request a Quote button above.
