Field Notes
Soil Sampling Probe Guide: Open End, Step, Recovery and Turf Probes in Canada
How to choose a soil sampling probe: open end, step, replaceable tip, recovery and turf types, sizes, steels, and VOC and PFAS considerations.
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GEM5000 Landfill Gas Analyzer: What It Measures and How to Use It for Wellfield Balancing
What the GEM5000 landfill gas analyzer measures and calculates, how to read balance gas and residual N2, how to add flow devices, how often to...
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Open Channel Flow Meter: The Velocity-Area Method with a Swoffer Current Meter
How to measure open channel flow with a handheld current meter: the velocity-area method, how many verticals to use, where to read velocity, and how...
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Moisture Meter Buyer's Guide for Canada: Pinless, Pin and Soil Meters Compared
How to choose a moisture meter in Canada: pinless, pin and soil types, why most readings are relative not a percentage, and when a concrete...
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BioSampler vs Spore Trap vs Culture Plate: Choosing a Bioaerosol Sampler in Canada
Impinger, spore trap or agar culture? Match the bioaerosol sampling method and pump to the question, with flows, sample volumes and Health Canada's position on...
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Water Level Telemetry: LevelSender vs RRL vs STS for Remote Groundwater Wells in Canada
Which Solinst telemetry system fits your monitoring well? LevelSender 5, RRL and STS compared by link, power and site conditions.
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Arsine Detectors Compared: RKI FP-301 Tape Monitor vs Sensidyne Detector Tubes
Which arsine detector can read the limit? RKI FP-301 tape monitor and Sensidyne tubes lined up against NIOSH, OSHA and IDLH levels.
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SF6 Leak Detector vs Area Monitor: Which Do You Need?
A handheld SF6 leak detector locates leaks; a fixed area monitor protects the room. How to choose between them, NIC vs infrared sensing, and what...
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Air Sampling Pump Calibrators: Bubble, Digital and Rotameter Compared for Canada
How to choose a flow calibrator for air sampling pumps: primary vs secondary, flow ranges, and the pre and post check.
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