Online Articles
Comparison Methyl Bromide Gas Detection Techniques
The following report summarizes methyl bromide gas testing
performed for the California EPA Department of Pesticide Regulation DPR.
The current method for determining worker exposure in fumigation is through
the use of colorimetric tubes. PureAire has introduced a continuous monitor
and this report compares this technique to grab sampling methods.
Continuous Oxygen Monitor Detects Leaks in Semiconductor Process Tool Transfer Stations
An extremely low-maintenance oxygen (O2) monitor designed
to continuously monitor semiconductor process tool transfer stations and
a load locks for leaks is available from PureAire Monitoring Systems. Suitable
for use in vacuums as low as 10-3 torr, the PureAire Air Check O2 Monitor
is unaffected by fluctuations in pressure, temperature, or humidity. The
instrument displays oxygen concentrations on a local digital display and
outputs a corresponding analog signal.
How PureAire Compares To Others
The following report is an evaluation comparing PureAire’s renewable gas monitors to other disposable gas monitors used in industry. PureAire’s renewable sensor cell technology offers the lowest after sale cost of ownership when compared to disposable sensor cell technologies.
How safe is your battery backup / battery charging rooom?
The widespread use of backup battery systems for computer
and communications networks has brought with it the danger of explosion
due to hydrogen buildup during the charging process. And while a normally
charging battery may generate less than 10 cc of hydrogen per hour, elevated
room temperatures, mproper charging rates, faulty chargers, and even simple
aging of the battery can significantly increase the rate at which hydrogen
is produced .
Zero-Maintenance Oxygen Monitor
An extremely economical, zero-maintenance oxygen deficiency (O2) monitor
is available from PureAire Monitoring Systems.
Ideal for the continuous monitoring of inert gas storage
areas, confined spaces, and other locations where low oxygen levels may
pose a hazard to personnel, the PureAire Air Check O2 Deficiency
Monitor is suitable for either indoor or outdoor use. The instrument
displays oxygen concentrations from 1.0% to 25% on a local readout and may
be linked to a dedicated companion controller or most commercially available
programmable logic controllers (PLCs). It operates on 24 VDC power.
Is Sensor Drift Jeopardizing Chlorine Safety at Your Plant?
“Our chlorine sensors don’t drift.”
We know, you’ve heard this claim before. Only to be disappointed.
And the reason is simple. Most electrochemical chlorine sensors rely on an acidic electrolyte. As a result, they’re hygroscopic. So changes in humidity often cause false positives or adversely affect sensitivity. Either way, chlorine safety at your plant suffers
Don’t Overlook Total Cost of Ownership When Purchasing a Gas Monitor
As anyone who owns an inkjet printer knows, the printers themselves are extremely inexpensive. It’s the ongoing cost of ownership — ink cartridge replacement — that can strain the budget.
What you may not know however, is that the majority of hazardous gas monitoring systems also have fairly hefty ongoing costs of ownership. And like those inkjet cartridges, sensor replacement and maintenance can end up putting a significant strain on operational budgets.
Measure Fluorine at the Source… and All Points Downstream
The latest generation of plasma etching and chemical vapor deposition (CVD) tools use significantly greater amounts of nitrogen trifluoride (NF3) than their predecessors. And even though they convert NF3 with 99% efficiency, large volumes of unreacted fluorine gas are still dumped into the point-of-use and in-house scrubber systems, which unfortunately, were never designed to handle the high volumes of gas they’re now being hit with. The result? Scrubber breakthrough….and an obnoxious odor wafting around the building that is difficult to identify and even harder to eliminate.