Features:
Long, graduated glass or plastic tube with a stopcock at the bottom
Delivers precise volumes of liquid during titration
Fine control over liquid flow using the stopcock
Mounted vertically on a stand for accurate readings
Clear markings for easy volume measurement
Used in quantitative chemical analysis, especially titrations
Transparent body for visibility of liquid level and air bubbles
Easy to clean and refill between uses
Specifications:
Material: Borosilicate glass or plastic (e.g., polycarbonate, acrylic)
Capacity: Common sizes are 25 mL, 50 mL, and 100 mL
Graduations: Precise, with subdivisions as small as 0.1 mL
Stopcock: Glass or PTFE (Teflon) for smooth, chemical-resistant operation
Accuracy: Class A or Class B based on tolerance standards
Mounting: Requires burette clamp and stand
Filling method: Manual or via automatic burette filler
Temperature resistance: High for glass; lower for plastic
Sterilization: Glass burettes are autoclavable; plastic burettes depend on material
Specifications:
Material: Polystyrene (disposable) or borosilicate glass (reusable)
Diameter: 60 mm, 90 mm, 100 mm, 150 mm
Depth: 15 mm to 25 mm
Lid type: loose-fitting, flat or domed
Temperature range:
– Polystyrene: up to 60°C
– Glass: up to 180°C and autoclavable
Specifications:
Material: Borosilicate glass or polypropylene (based on model)
Sizes: 250 mL, 500 mL, 1000 mL, 2000 mL
Chambers: three vertically aligned sections—top (acid), middle (solid reactant), bottom (liquid reservoir)
Valves: glass or plastic stopcocks for gas outlet control
Temperature resistance: up to 180°C (for glass models)
Chemical compatibility: resistant to acids and common laboratory reagents
Specifications:
Material: Polystyrene (disposable), stainless steel or polypropylene (reusable)
Length: approximately 150 mm to 200 mm
Arm width: ~4 mm to 8 mm
Sterility: Sterile (gamma-irradiated or EO) or non-sterile
Autoclavable: Yes (reusable versions)
Tip style: Rounded for minimal agar damage
| Performance | Â Min. Cold Life Std. Req. 30hrs |
| WHO PQS Reference Number | Â E04/CB01.1 |
| Cold life without opening at +43°C |  93 hrs 33 minutes |
| Warm Life at -20° C |  31 hrs 22 minutes |
| Cool Life at +43° C |  20 hrs 42 minutes |
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