VOLUMETRIC WARE

Volumetric measurement is a routine task in the laboratory. The basic equipments used are Pipette, Volumetric Flasks and Measuring Cylinders.

  1. calibration of Measuring Equipment Proper use of calibrated volumetric glassware requires that the user be informed whether the ware is a "to contain" or "to deliver" vessel. Volumetric ware is Calibrated to deliver (Ex or TD) or to contain (In or TC) the stated volume. (The International standards Organisation for "to containis "In" and "todeliver,is"Ex") "Ex" Calibrated to deliver. The quantity of liquid deliverd corresponds to the volume indicated on the ware. E.g..pipette. "In" Calibrated to contain. The quantity of liquid contained corresponds to the volume printed on the ware. E.g..volumetric flasks, measuring cylinder.

  2. Accuracy Class "A" is the most accurate class. These items are marked with unique number and the certificate is issued. Class "B" volumetric glassware is intended to use for general purpose in laboratory. 

    i) In case of water the edges are drawn slightly upward, forming a concave meniscus should just touch the graduation line 

    ii) Incase of mercury a convex meniscus is formed. According to the International standards the volume should be read at the highest point of the liquid surface.i.e.the highest point of the meniscus should just touch graduation line. 

    iii) When a Schell Bach strip is provided, the contracts into a an arrow shape at the meniscus. Due to the lens effect of the water column the line appears broad inside the water column. Both the narrow and board line meet at the meniscus in arrow shape. The meeting point of both the arrows is the read off point of the graduation mark.


VOLUMETRIC FLASKS

Flasks, Volumetric, with interchangeable glass and plastic stopper, Class "A" with ind Certificate, ISO 1042 Blue Coloured Marking, 
Made From Heat Resistant, Low Expansion 3.3 Borosilicate Glass, LOBA life - Glassco

Art No.

Capacity
ml

Tolerance ± ml Stopper Size Pack size
13023601 5 0.025 10/19 1
13023602 10 0.025 10/19 1
13023602A 20 0.04 10/19 1
13023603 25 0.04 10/19 1
13023604 50 0.06 12/21 1
13023605 100 0.1 14/23 1
13023606 200 0.15 14/23 1
13023607 250 0.15 14/23 1
13023608 500 0.25 19/26 1
13023609 1000 0.4 24/29 1
13023610 2000 0.6 29/32 1

Flasks, Volumetric, with interchangeable glass and plastic stopper, Class "A" with NABL ind. Certificate, ISO 1042 Blue Coloured Marking. 
Made From Heat Resistant, Low Expansion 3.3 Borosilicate Glass,  LOBA life - Glassco

Art No.

Capacity
(ml)

Tolerance ± ml Stopper size Pack size
13040601 5 0.025 10/19 2
13040602 10 0.025 10/19 2
13040603 20 0.04 10/19 2
13040604 25 0.04 10/19 2
13040605 50 0.06 12/21 2
13040608 100 0.1 14/23 2
13040609 200 0.15 14/23 2
Pack size
13040701 5 0.02 10/19 1
13040702 10 0.02 10/19 1
13040702A 20 0.03 10/19 1
13040703 25 0.03 10/19 1
13040704 50 0.05 12/21 1
13040705 100 0.08 14/23 1
13040706 200 0.1 14/23 1
13040707 250 0.12 14/23 1
13040708 500 0.2 19/26 1
13040709 1000 0.3 24/29 1
13040710 2000 0.5 29/32 1

Flasks, Volumetric, AMBER, with Interchangeable Glass Stopper, Class "A", with Ind certificate, ISO- 1042 Std. White Coloured Marking, 
Made From Heat Resistant, Low Expansion 3.3 Borosilicate Glass, LOBA life - Glassco * 
Made from Original Amber Glass tubing.

Art No.

Capacity
ml

Tolerance ± ml Stopper Size Pack size
13023601A 5 0.025 10/19 1
13023602A 10 0.025 10/19 1
13023603A 20 0.04 10/19 1
13023604A 25 0.04 10/19 1
13023605A 50 0.06 12/21 1
13023608A 100 0.1 14/23 1
13023609A 200 0.15 14/23 1
13023610A 250 0.15 14/23 1
13023611A 500 0.25 19/26 1
13023612A 1000 0.4 24/29 1
13023613A 2000 0.6 29/32 1

Flasks, Volumetric, AMBER with Interchangeable Glass Stopper, Class "A", with NABL Ind certificate, ISO- 1042 Std White Coloured Marking, 
Made From Heat Resistant, Low Expansion 3.3 Borosilicate Glass, LOBA life - Glassco * 
Made from Original Amber Glass tubing.

Art No.

Capacity
ml

Tolerance ± ml Stopper Size Pack size
13040601A 5 0.025 10/19 1
13040602A 10 0.025 10/19 1
13040603A 20 0.04 10/19 1
13040604A 25 0.04 10/19 1
13040605A 50 0.06 12/21 1
13040608A 100 0.1 14/23 1
13040609A 200 0.15 14/23 1
13040610A 250 0.15 14/23 1
13040611A 500 0.25 19/26 1
13040612A 1000 0.4 24/29 1
13040613A 2000 0.6 29/32 1

Flasks, Volumetric, AMBER, with Interchangeable Polyethylene Stopper, Class "B", White Coloured Marking, 
Made From Heat Resistant, Low Expansion Borosilicate Glass, LOBA life - Glassco * 
Made from Original Amber Glass tubing.

Art No.

Capacity
ml

Tolerance ± ml Stopper Size Pack size
13022201A 5 0.05 10/19 2
13022202AB 10 0.05 10/19 2
13022203A 20 0.08 10/19 2
13022204A 25 0.08 10/19 2
13022205A 50 0.12 12/21 2
13022206A 100 0.2 14/23 2
13022207A 200 0.3 14/23 2
13022208A 250 0.3 14/23 2
13022209A 500 0.5 19/26 2
130222010A 1000 0.8 24/29 2
130222011A 2000 1.2 29/32 1

Flasks, Volumetric, Sugar Estimation with two mark & without Stopper. 
Made From Heat Resistant, Low Expansion 3.3 Borosilicate Glass, LOBA life - Glassco

Art No.

Capacity
(ml)

Tolerance ± ml Pack size
13320202 100/110 0.15 2
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