Flasks with gound joint neck

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 Erlenmeyer flasks with ground joint, DURAN®

Lenz

Acc. to DIN EN ISO 4797 and in addition to DIN standard (*), with scale (approx. volume / ml), 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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 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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 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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 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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 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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 Erlenmeyer flasks, NS neck, borosilicate glass 3.3, amber

Isolab

Borosilicate glass 3.3, amber. Conformed to DIN EN ISO 4797. NS necks are in compliance with DIN 12242 standards....

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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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 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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 Round bottom flasks with two necks, side neck angled, DURAN®

Lenz

DIN 12394 and in addition to DIN standard (*). With one central and one 20° side angled ground joint necks as outlined below....

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