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Z341479

Sigma-Aldrich

Hirschmann® Ceramus® bottle-top dispenser, adjustable volume

dispensing volume 0.4-2.0 mL, precision: 0.1 CV%

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About This Item

UNSPSC代码:
41121500
NACRES:
NB.01

$665.00

请联系客服了解存货情况

特点

subdivision 0.05 mL
 with recirculating valve

制造商/商品名称

Hirschmann 932200010

dispensing volume measuring range

0.4-2.0 mL, precision: 0.1 CV%

体积

0.4-2 mL

配件

GL 32
GL 38
GL 45
S 40

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相关类别

一般描述

  • Chemically inert − unique ceramic dispenser piston in a Duran® borosilicate glass barrel
  • Micro-step volume adjustment − ensures reproducibility
  • Rotates on the bottle − for convenience
  • Recirculation system − for fast priming without loss of reagent
  • Lifetime calibration − supplied with individual serial number and Test Certificate

Includes adapters for:
  • GL 45 threads/Pyrex® and Duran® media bottles
  • GL 32 threads/Aldrich Sealed for Quality and Sure/Seal bottles
  • GL 38 threads/Gallon bottles
  • S40 threads

Specifications:
  • Piston − 99.7% pure Al2O3
  • Barrel − Duran® borosilicate glass
  • Valve block and housing − ECTFE
  • Valves − borosilicate glass ball and seat (HF: ceramic); Hastelloy® discharge valve spring
  • Suction and discharge tubes − FEP
  • Sterilization − Steam sterilizable at 121°C/2 bar, complete unit without disassembly
  • Luer-lock connection − for filters and drying tubes

法律信息

Ceramus is a registered trademark of Hirschmann Laborgeräte GmbH & Co.
DURAN is a registered trademark of DWK Life Sciences
Hastelloy is a registered trademark of Haynes International, Inc.
Hirschmann is a registered trademark of Hirschmann Laborgeräte GmbH & Co.
PYREX is a registered trademark of Corning, Inc.

历史批次信息供参考:

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Bottles & Cans

Packaging options for solvents include glass, PVC coated, Sure/Seal bottles, and aluminum cans, offering diverse dispensing solutions.

Questions

  1. What range of viscosities are these able to dispense accurately?

    1 answer

    1. These products are not calibrated at specific viscosities. Solvent viscosities of approx. 500 mPas may be used without restrictions, with certain exceptions.
      See the list of tips below to assure optimum precision at higher viscosities:
      • The devices may be used up to approx. 1000 mPas, but this is contingent on temperature and other solvent properties.
      • Glycerin with a viscosity of approximately 1490 mPas is suitable for use with the dispensers.
      • Suction should be applied with higher viscosity solvents by slowly lifting the piston, as the pressure compensation in the cylinder is delayed.
      • Dispensing should be performed slowly or the discharge valve may block the ejection of the solvent.
      • Choose the smaller volume settings for dispensing, since less fluid is moved during the piston stroke.
      • Always monitor the sight window to assure that the cylinder is filled completely.
      • If working with recirculation return, remove the return hose.
      • Consider the use of larger size tube diameters, valve openings, and nozzle attachments when dispensing larger volumes, particularly if the solvent is of a higher viscosity.

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