Design of systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.

experiments that focus on the two most common everyday activities to the air chemistry of indoor environments: cooking and cleaning. These activities are (1) realistic representations of activities performed in indoor environments and (2) likely to drive interesting chemical reactions that can be better understood through this study.

"a monitoring system indicates the presence of chlorine and/or chlorine dioxide at concentrations below PEL"

{Type of sampling equipment used by OSHA to take air samples to check chlorine dioxide levels}

? Could switch in ClO2 cartridge?

$865 ClO2

$1,000 ClO2

$652

$480

$598-$811, or rental

$473

Source: Automation Control Solutions. Rosemount Instruments' Models 54e pH/ORP and 3081 pH/ORP are suitable instruments for monitoring and controlling pH and ORP in pulp and paper mills

{for paper mills} "Due to the very aggressive nature of the process stream, all wetted parts are manufactured from corrosion resistant materials, such as titanium and sapphire. Integrated dual channel reference detectors compensate for all possible disturbances such as varying levels of particulates (turbidity) and lamp aging." "Split-beam technology compensates for lamp aging and varying particulate levels including bubbles. The signals from other instruments measuring temperature and/or pressure are recommended to be used directly as compensation for the raw gaseous ClO2 concentration"

{Pulp mill} 1/19/2022 Call Bruce Helton, 740-772-3099 re. monitors

GrayWolf toxic gas meters-monitors, portable and continuous, combine plug & play PID, NDIR and electrochemical gas sensor technology for a broad range of parameters. IAQ, toxic exposure and other test instrument, equipment applications.

ClO2 $571

ClO2 $471

"There is no compressed ozone or chlorine dioxide gas available for calibrating these instruments. End users can have the unit calibrated by any of our Distributor Service Centers or send their units to us through a distributor to be calibrated, or can purchase a calibration gas generator for ozone or ClO2 in order to calibrate and bump test their instruments"

[Product info from manufacturer]

Technical article covering the basics of calibration--as it applies to toxic gas detection instruments. Features several informative links.

$348. 1/24 spoke Marty re dental misters.

$383 ClO2 detector

Ideal Gas Law Calculator