Suprasil

Heraeus provides premium quartz glass tubes for UV and deep UV application with superior visual quality.

Heraeus applies proprietary multi-step processing that results in a free drawn tube (drawn without the use of a die or mandrel). The resulting lamp has nearly blemish free surfaces, no airlines, a very low bubble content and high homogeneity.

Due to our multi-step production process these tubes are available in a practically unlimited range of diameters and wall thickness.

Multi-step tubes are available in small batch quantities

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Applications:

spectroscopy

Lamp Types:

hollow cathode lamps
deuterium lamps

Properties of Suprasil:

highest purity
high OH content ~ 400 ppm

Minimum Order Quantity:
5kg

Outer Diameter (OD)
OD-Range	Tolerance*
2 – ≤ 8 mm	± 0.2 mm
> 8 – ≤ 17 mm	± 0.3 mm
> 17 – ≤ 25 mm	± 0.4 mm
> 25 – ≤ 30 mm	± 0.5 mm
> 30 – ≤ 35 mm	± 0.6 mm
> 35 – ≤ 40 mm	± 0.8 mm
^{*Other dimensions and tolerances on request.}

Wall Thickness (WT)
WT-Range	Tolerance*
< 1.2 mm	± 0.2 mm
> 1.2 - 1.6 mm	± 0.3 mm
> 1.6 - 2.0 mm	± 0.4 mm
> 2.0 - 2.5 mm	± 0.5 mm
> 2.0 - 2.8 mm	± 0.6 mm
> 2.8 - 3.2 mm	± 0.7 mm
> 3.2 - 4.0 mm	± 0.6 mm
> 4.0 - 4.5 mm	± 0.7 mm
^{*Other dimensions and tolerances on request.}

Typical chemical impurities (bulk) (ppm, μg/g)											OH Content (ppm, mg/g)
Li	Na	K	Mg	Ca	Fe	Cu	Cr	Mn	Al	Ti	OH content
0.01	0.05	0.01	0.005	0.05	0.02	0.01	0.005	0.005	0.05	0.05	»800
^{*no change in the OH content by the annealing process}

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