Air Monitor Correlation charts by brand

Dräger Monitor Cross sensitivity charts

https://www.draeger.com/Library/Content/9046571-sensormanual-e-lores.pdf

This PDF provides extensive training on Dräger air monitors as well as some basic chemistry. Specific information on LEL sensor cross sensitivity begins on page 86. Infrared sensor cross sensitivity is on Page 110. Photo Ionization Sensors are on page 128. Electrochemical sensors begin on page 132. 

MSA Monitor Cross Reference Factors

https://www.instrumart.com/assets/MSA-ALTAIR4X-crossref.pdf

MSA PID Response Factors

http://s7d9.scene7.com/is/content/minesafetyappliances/ALTAIR%205X%20w_PID%20Response%20Factor%20Table%20-%20EN

RAE Correction Factors for LEL Sensors

https://sps.honeywell.com/content/dam/his-sandbox/products/gas-and-flame-detection/documents/Technical-Note-114_updated_03-26-2018.pdf

RAE PID Response Factors

https://www.environst.com/pid-correction-factors

Industrial Scientific LEL Correlation Factors

https://www.indsci.com/globalassets/documents/general-gas-education/lel-correlation-factors.pdf

Industrial Scientific PID Response Factors

https://gastech.com/sites/default/files/20161027-ISC-MX6-PID-Response-Factors-Application-note.pdf