Orifice test device for protective mask testers

Details Orifice test device for protective mask testers Orifice test device for protective mask testers

2006-08-31

2008-08-26

Rogers, David A. (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Gas or liquid analyzer

C073S001240, C073S001560

Reexamination Certificate

active

07415864

ABSTRACT:
An orifice test calibration device tests the functionality of protective mask testers. The orifice test calibration device has a semi-rigid tubular channel with one end for sealing the flow outlet port of the protective mask tester and a second end for sealing the vacuum inlet port of the protective mask tester. The device also includes a sealable opening within the tubular channel and an insertable orifice plug having a set diameter for insertion into the sealable opening in order to calibrate the protective mask tester.

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