Industry News & Company Updates

Difference Between Microwave Solids Content Measurement and Optical Turbidity Method

The microwave method (Teqwave MW500) measures total solids c…

Selection Guide for Industrial Instrument Fittings: Ferrule, Threaded, Cable Gland, and Flange

This article systematically introduces the connection struct…

HJ 618-2011 Ambient Air-Determination of PM10 and PM2.5 by Gravimetric Method

HJ 691-2014 Technical Guidelines for Sampling of Semi-Volatile Organic Compounds in Ambient Air

HJ 656-2013 "Ambient Air Particulate Matter (PM2.5) Manual Monitoring Method (Gravimetric Method) Technical Specification"

HJ 93-2013 Technical Requirements and Detection Methods for Ambient Air Particulate Matter (PM10 and PM2.5) Sampler

HJ 655-2013 partially replaces HJ/T 193-2005 Technical Specification for Installation and Acceptance of Continuous Automatic Monitoring System for Ambient Air Particulate Matter (PM10 and PM2.5) (2)

HJ 653-2013 "Technical requirements and detection methods for continuous automatic monitoring system of ambient air particulate matter (PM10 and PM2.5)"

HJ 193-2013 Technical Specification for Installation and Acceptance of Continuous Automatic Monitoring System for Ambient Air Gaseous Pollutants (SO2, NO2, O3, CO)

HJ 654-2013 "Technical requirements and detection methods for continuous automatic monitoring system of gaseous pollutants (SO2, NO2, O3, CO) in ambient air"