Measuring Cylinder ,Duran กระบอกตวง

100ml.
250ml.
500ml.
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Complies with ISO 4788
Manufactured from borosilicate glass 3.3
Large hexagonal base equipped with three knobs which increase its stability and prevent the cylinder from rolling
A uniform wall thickness over the entire measuring range prevents wedge errors
Calibration is based on the poured in volume (“In”) at a + 20 °C reference temperature
The volume content tolerances conform to accuracy Class A
Easy-to-read scale with graduation marks to estimate the content
With circular ring graduations
Fired-on, highly durable blue print

Product Name: Sulfuric acid 90-91%, for Gerber fat determination and determination of nitrates in milk

Quality Level: 300

Assay: 90.0-91.0% (acidimetric)

form: liquid

impurities: ≤0.2 ppm Nitrate (NO3)

bp: 300 °C

density: 1.81 g/cm3 at 20 °C

storage temp.: no temp limit

SMILES string: OS(O)(=O)=O

InChI: 1S/H2O4S/c1-5(2,3)4/h(H2,1,2,3,4)

InChI key: QAOWNCQODCNURD-UHFFFAOYSA-N

Analysis Note

Assay (acidimetric): 90.0 - 91.0 %

Density (20 °C): 1.815 - 1.821 g/ml

Nitrate (NO₃): ≤ 0.2 ppm

Test for oily and fatty substances: passes test

Expiry date: see product label