Volumetric Flask, Borosilicate Glass, Trapezoidal, Amber, Class A, with P.E Conical Stopper, Batch Certified, White Scale, NS 7/16 Joint, 2 ml Volume

Manufactured from heat resistant borosilicate 3.3 glass according to DIN EN ISO 1042 standard.

Small size flasks with standard body shape can fall over very easily due to their smaller center of gravity. Compared to other standard volumetric flasks of the same volume, trapezoidal flasks have at least twice base area. For this reason trapezoidal flasks are much more stable than standard flasks.

Calibrated according to DIN/ISO Class “A” standard. Featured with a (“DE-M”) conformity mark according to German federal weights and measures regulations.

Individual calibration carried out by automatic robots eliminate possible deviations from nominal values.

Conformity mark and batch number printed on the body surface. Batch certificate can be downloaded from website.

Diamond grinded meniscus ring mark offers longer persistance and enables easy observation of meniscus level. Inscriptions on the amber flask bodies are printed with white enamel.

All volumetric flasks are supplied with a leak-proof P.E stopper which ensures perfect closure.

How to Use Volumetric Flasks:

Volumetric flasks are mainly used for preparation of highly accurate solutions.

First add the exact weight of the product inside the flask.

Fill the flask about half the volume and mix the content.

Then fill again until the level reaches a bit lower than calibration ring mark.

Adjust the temperature of flask and the content to 20°C.

Add a little more liquid so that the meniscus will be exactly at the same level of the ring mark.

Pay attention to read the meniscus at the eye level also not to wet the inner neck wall above the ring mark.