Dynacal Wafer Device - Hydrogen Sulfide Wafer CAS # 7783-06-4

VICI MetronicsSKU: PDWF-0110

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Overview

Wafer devices are a specialized type of permeation tube where only a small area of the tube is permeable, creating a window—or wafer—that allows very low permeation rates. Like perm tubes, wafer devices are small, inert capsules containing a pure chemical compound, but permeation occurs only through the polymeric wafer; thus, the permeation rate can be controlled by varying the wafer material, thickness, and diameter of the permeation opening.

Gases with a high vapor pressure at normal permeation temperatures sometimes cannot be contained in a typical permeation tube device. Wafer devices are ideal for applications with these gases. VICI Metronics wafer devices are available in different styles for use in calibrators made by various manufacturers.

Contact us for more information about the list of standard chemicals available. Experimental and non-standard chemicals are also available on request.

View a sample of the Instruction Sheet and Calibration Certificate that are provided for each wafer permeation device

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Total Length: 4.6 cm

Diameter: 1.6 cm

See list below, different flow rates are achievable depending on calibration temperature.

30°c- 45 ng/min

35°c- 70 ng/min

40°c- 105ng/min

45°c - 155 ng/min

50°c - 245 ng/min

We offer Certified devices, but these are special order only. See the below list for other custom options for different flow rates. Please Contact us for a quote and lead time.

SPECIAL ORDER ONLY H2S Wafer Rates

Temp °C









30

14

20

30

45

60

95

160

270

35

21

30

46

70

92

135

229

380

40

32

45

70

105

140

190

320

530

45

48

68

105

155

210

270

460

750

50

76

105

165

245

330

380

671

1,060

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