Schellbach Glass ASTM Graduated Burette with PTFE Stopcock, 50 ml, 0.10 ml Graduation, Class A

Name: Schellbach Glass ASTM Graduated Burette with PTFE Stopcock, 50 ml, 0.10 ml Graduation, Class A
Brand: Eisco
SKU: CH0241K
Availability: InStock

SKU CH0241K

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50 ml Borosilicate ASTM burette
PTFE stopcock
Single straight bore
Schellbach style, Includes vertical white stripe and center blue ribbon for easy measuring of clear liquids
Class A
0.10 ml blue ceramic graduations
Tolerance ±0.05 ml
Made from high quality 3.3 borosilicate glass
31" height
Superior chemical durability*
Complies with DIN 12700, ISO 385 and ASTM E1272

*See specifications tab for temperature and chemical durability information

Thermal Properties
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% H₂SO₄at 130°C	12	140
Alkali -1N solution of Na₂CO₃boiling	6	4000
Isotonic infusion Fluids
NaCl (0.85%) at 121°C	2.5	70
Glucose (5%) at 121°C	2.5	50

Schellbach Glass ASTM Graduated Burette with PTFE Stopcock, 50 ml, 0.10 ml Graduation, Class A

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