Flask - 3 Ground Neck - 20° Parallel Side Neck

030.42.250

Manufactured from heat resistant, durable borosilicate glass according to DIN 12392 & DIN 12394 standard. Thick wall, heavy base and reinforced rim prevent breakage during washing and transportation. Perfectly grinded NS necks with smooth interior guarantee excellent leakproof closure. Inscriptions are printed with white enamel.

250 ml / NS 14/23
250 ml / NS 19/26
500 ml / NS 24/29
1000 ml / NS 29/32
250 ml / NS 14/23
500 ml / NS 19/26
1000 ml / NS 24/29
2000 ml / NS 29/32
250 ml / NS 19/26
500 ml / NS 24/29
1000 ml / NS 29/32
250 ml / NS 24/29
500 ml / NS 29/32
1000 ml / NS 24/29
250 ml / NS 29/32
500 ml / NS 29/32
1000 ml / NS 29/32
2000 ml / NS 14/23

TECHNICAL SPECIFICATIONS

FREQUENTLY ASKED QUESTIONS

VIDEO

Product Technical Information

flask - round bottom - three-neck - parallel side necks - center joint: NS14/23 - side joints: NS14/23 - 250 ml
Material

Glass
Shape

3-neck NS joint size – angled side neck
Volume

250 ml
Center Joint NS Size

14/23
Side Joint NS Size

14/23

For boiling purposes, should a flat bottom or round bottom flaks be used?
For boiling, with mantle flask heaters and round bottome flask should be used.