Flasks with gound joint neck

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 Round bottom flasks with conical ground joint, DURAN®

Lenz

According to DIN EN ISO 4797 and in addition to DIN standard (*), with inscription label....

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 Erlenmeyer flasks, NS neck, borosilicate glass 3.3

Isolab

Borosilicate glass 3.3. Conformed to DIN EN ISO 4797. NS necks are in compliance with DIN 12242 standards. Inscriptions are in white enamel which is specially designed for glass use....

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 Round bottom flasks, borosilicate glass 3.3

Isolab

Resistant to heat and almost all chemicals. According to DIN EN ISO 4797. Reinforced rims are used to prevent breaking during washing and transportation....

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 Flat bottom flasks with conical ground joint, DURAN®

Lenz

According to DIN EN ISO 4797 and in addition to DIN standard (*), with inscription label....

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 Flat bottom flasks, NS joint neck, borosilicate glass 3.3

Isolab

Resistant to heat and almost all chemicals. According to DIN EN ISO 4797....

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 Pear shape flasks with conical ground joints, DURAN®

Lenz

According to DIN 12383 and in addition to DIN standard, with inscription label....

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 Three-neck round-bottom flasks, side necks angled, DURAN®

Lenz

DIN 12394 and in addition to DIN standard (*). Central neck with 2 x 20° angled side necks....

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 Three neck round bottom flasks, side necks parallel, DURAN®

Lenz

DIN 12392 and in addition to DIN standard (*). All necks are parallel....

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 Iodine determination flasks, with and without collar, DURAN®

Lenz

  • With iodine stopper NS29/32 or hollow hexagonal stopper NS29/32
  • With scale and inscription label
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 Nitrogen tubes (Schlenk-tubes), DURAN® tubing

Lenz

Made of DURAN ® tubing. With conical joint and NS glass stopcock....

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