Eisco Labs
| SKU
CH0241J
Class A Schellbach Borosilicate Glass Burette with PTFE Stopcock
⚠️ 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
$43.49
Sale price
Regular price
$43.49
In Stock (52)
- Free US Shipping $100+ 30 Day Free Returns
Product Description
Product Description
This 25 ml Schellbach burette is made from precisely bored Borosilicate 3.3 glass and meets Class A accuracy per DIN ISO 385 and ASTM-E287 standards, with a tolerance of plus or minus 0.05 mL and 0.10 ml subdivisions. The Schellbach design includes a vertical white stripe with a central blue ribbon to facilitate accurate reading of the meniscus.
The burette measures 24 inches in length and features an intermediate PTFE stopcock that facilitates complete drainage of excess liquid. Blue, chemically resistant printed graduations provide clear contrast against the glass. The borosilicate glass construction is autoclavable with superior chemical durability. The burette is calibrated for delivery.
Specifications
Specifications
- Material: 3.3 Borosilicate Glass
- Class: Class A
- Capacity: 25 ml
- Graduation: 0.10 ml
- Tolerance: ±0.05 ml
- Stopcock: PTFE
- 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): 24.00" × 2.00" × 2.00" (61.0cm × 5.08cm × 5.08cm)
- Weight: 0.40 lbs (181g)
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
Payment methods
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