Eisco Labs
| SKU
CH1972A
Class A Borosilicate Glass Volumetric Flask with Individual Certificate
⚠️ 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
$15.69
Sale price
Regular price
$15.69
In Stock (15)
- Free US Shipping $100+ 30 Day Free Returns
Product Description
Product Description
This Eisco Labs 5mL Volumetric Flask is constructed from borosilicate glass and meets Class A, ASTM-E288 standards for high-precision volumetric measurement. The flask is fitted with a polypropylene stopper and includes an individual work certificate documenting its calibration.
Designed for trace-level solution preparation, titration standards, and microanalysis samples, this Class A flask delivers certified accuracy for demanding analytical applications. The individual certificate provides traceability for quality-controlled workflows in professional laboratories.
Specifications
Specifications
- Material: 3.3 Borosilicate Glass
- Class: Class A
- Capacity: 5 ml
- Stopper: Polypropylene (10/19)
- Tolerance: ±0.020 ml
- Graduation: yes
- Thermal Properties (Flask)
Coefficient of Linear Expansion: 32.5 x 10⁻⁷ / 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: Duration (hours)
Loss in weight (mg/m²)
- 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
4000
- Isotonic infusion Fluids
NaCl (0.85%) at 121°C: 2.5
70
Glucose (5%) at 121°C
2.5
50
- Dimensions (L × W × H): 1.00" × 1.00" × 3.10" (2.54cm × 2.54cm × 7.87cm)
- Weight: 0.02 lbs (9g)
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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