Instrumentation 2021

Category File (2021 Catalog) for Facility Supplies in downloadable .PDF (Requires Adobe Acrobat Reader, Click on Link Below) 
Instrumentation 95 to 108

NOTE: Here is a link to a downloadable Order/RFQ form to fax or e-mail, ASP Mail / Fax Order / RFQ Form (fillable, PDF Format, opens in new window for your convenience)

Individual Category Files (2021 Catalog) by Section for smaller downloadable .PDF.  (Click on Link(s) Below)
Instrumentation_95_to_106
Portable_Calibration_Gases_107
Instrumentation_Accessories_108

Guidelines for Choosing a Fixed Gas System
1. Fixed Gas Detection
Industrial processes increasingly involve the use and manufacture of highly dangerous substances, particularly flammable, toxic and oxygen gases. Inevitably, gas occasionally escapes, which creates a potential hazard to the industrial plant, its employees and people living nearby.

2. Detection Principles
Flammable Gas Hazards
Combustion is a chemical reaction in which oxygen is combined rapidly with another substance resulting in the release of energy. There is only a limited band of gas/ air concentration which will produce a combustible mixture. This band is specific for each gas and vapor and is bounded by an upper level, known as the Upper Explosive Limit (or the UEL) and a lower level, called the Lower Explosive Limit (LEL).

Toxic Gas Hazards
Toxic gases are poisonous and can be dangerous to life at very low concentrations. The measurements most often used for the concentration of toxic gases are parts per million (ppm) and parts per billion (ppb). For example 1 ppm would be equivalent to a room fil led with a total of one million balls and one of those balls being red. The red ball would represent 1 ppm. More people die from toxic gas exposure than from explosions caused by the ignition of flammable gas.

3. Applications
 

Building Environment	Specific Area	Gases Present (Detected by XCD)	Building Environment	Specific Area	Gases Present (Detected by XCD)
Bulk and Specialty Gas Applications	Metal Production Petroleum, Chemicals and Pharmaceuticals Energy, Oil and Gas Food and Beverage	Carbon Dioxide Hydrogen Hydrogen Sulfide Oxygen	Waste Water Treatment Plants	Digesters Plants Sumps H2S Scrubbers Carbon Monoxide Storage Rooms	Carbon Monoxide Hydrogen Sulfide Methane Nitrogen Dioxide Chlorine Oxygen
Light Industrial	Specialty Chemicals Industry Printing Industry Plastic and Fibers Industry Agricultural Industry	Carbon Dioxide Hydrogen Oxygen Flammables	General Manufacturing	Battery Rooms Loading Docks Process Areas Machinery Rooms	Carbon Monoxide Methane Oxygen Propane

 

 

Please see catalog links at top of page above for Gas Monitors and Accessories.