Field Notes
Orbital Shaker Guide: Choose by Orbit, Speed and Load for Canadian Labs
How to choose an orbital shaker by orbit diameter, speed range and load capacity, with ERE's OHAUS and Labnet range compared from the product records.
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Laboratory Centrifuge Guide: Choose by Tube, g-Force and Rotor for Canadian Labs
How to choose a laboratory centrifuge: tube volume, ×g versus rpm, rotor style, tube limits and biosafety, for OHAUS Frontier and Labnet Spectrafuge models.
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Magnetic Stirrers: How to Choose by Volume, Speed and Heat for Canadian Labs
How to choose a magnetic stirrer or hotplate stirrer by sample volume, viscosity and heat, from 1 L bench units to 200 L drives, plus...
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pH Buffer Solutions: Choosing 4.01, 7.01 and 10.01 Calibration Standards for Canadian Water Work
Which pH buffer solutions you need, how to bracket your sample range, sachet vs bottle formats and a step-by-step meter calibration.
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Oil Stop Valves: How a Polymer Hydrocarbon Shut-Off Works and Where to Install One in Canada
How a polymer oil stop valve like the HFF protects storm drains, substations and outfalls: how it shuts off, flow sizes, maintenance and where Canadian...
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Sample Bottles Guide: HDPE, Amber, Sterile and PTFE for Environmental Sampling in Canada
Which sample bottle for which analysis: HDPE, amber, sterile and PTFE compared, what labs supply pre-preserved, and why plastic fails for semi-volatile organics.
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Spill Kit Guide: Oil-Only, Universal and HazMat Kits for Canadian Sites
Oil-only, universal or HazMat? Compare ERE's 45 gallon and 250 litre spill kits, what CCOHS says they lack, and how to choose for your site.
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Particle Counter Guide: Handheld Mass and Count Monitors for Canada
Particle counter or particle monitor? How the Aerocet 532 counts 0.3 to 10 micron particles, converts to PM2.5 mass, and what it can't certify.
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Digital Refractometer Guide: Brix, Sodium Chloride and Seawater Models in Canada
How to choose a digital refractometer for sugar, brine or seawater: ranges, stated accuracy worked as a share of the reading, and calibration tips.
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