Eisco Labs
| SKU
CH0241D
Class A Schellbach Borosilicate Glass Burette with Glass Stopcock, Blue Graduations
⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Regular price
$41.59
Sale price
Regular price
$41.59
Backorder
- Free US Shipping $100+ 30 Day Free Returns
Product Description
Product Description
The Eisco Labs 25mL Lab Burette features a Schellbach design — a vertical white backing with a central blue line opposite the graduations — for clear, accurate meniscus reading. Constructed from heavy-duty borosilicate 3.3 glass with a straight-bore glass key stopcock and chemical-resistant blue graduations, it conforms to Class A, DIN ISO 385 standards with 0.1mL graduations and ±0.05mL tolerance. Calibrated to deliver.
The burette measures 23.75" long with a 13mm (0.5") outer diameter. Autoclavable and chemically durable, the borosilicate construction tolerates high temperatures and thermal shock — Strain Point 515°C, Annealing Point 565°C, Softening Point 820°C.
Specifications
Specifications
- Material: 3.3 Borosilicate Glass
- Class: Class A
- Capacity: 25 ml
- Graduation: 0.10 ml
- Tolerance: ±0.05 ml
- Stopcock: Glass Key
- Thermal Properties
Coefficient of Linear Expansion: 32.5 x 107 / °C
- Strain Point: -515°C
- Annealing Point: 565°C
- Softening Point: 820°C
- Specific Heat: 0.2
- Thermal Conductivity (Cal/cm3°C/Sec): 0.0027
- Chemical Durability
Contact Chemical (mg/m2): Duration (hours)
Loss in weight
- Water distilled at 100°C: 6
10
- Water vapour steam at 121°C: 1
75
- Acid HCl: 6
100
- 80% H2SO4 at 130°C: 12
140
- Alkali -1N solution of Na2CO3 boiling: 6
400
- Isotonic infusion Fluids
NaCl (0.85%) at 121°C: 2.5
70
Glucose (5%) at 121°C
2.5
50
- Dimensions (L × W × H): 23.70" × 2.30" × 0.80" (60.2cm × 5.84cm × 2.03cm)
- Weight: 0.20 lbs (91g)
Shipping & Returns
Shipping & Returns
SHIPPING
Ships from Rochester, NY. Orders received by 1:00 PM EST M-F typically ship same business day. Free US shipping on orders over $100. Expedited options available.
RETURNS
30-day return window. Unused items receive a full refund; used items are eligible for store credit or exchange. Return shipping is paid by the customer. Clearance items are final sale. Defective products? Contact us directly.
Payment & Security
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