Collecting an asbestos bulk sample, step by step
How to prepare the area, take a representative piece, double-bag and seal it, and label each bag so the lab can match it. Covers the mistakes that cause a resample.
Free to anyone
How to collect every test we run, what equipment you need, and what the rules are. Every one is free and open, you do not need an account to watch.
5 lessons with forms, downloads and supply links.
How to prepare the area, take a representative piece, double-bag and seal it, and label each bag so the lab can match it. Covers the mistakes that cause a resample.
Setting up pumps for final clearance, calculating volume from flow rate and run time, and what AHERA requires before you can release the space.
Grid sampling, depth, compositing rules and how much material the lab needs. Why soil is not the same as a bulk building material.
Why vermiculite needs its own approach, how much to collect from an attic, and what a negative PLM result does and does not tell you.
Ice, overnight courier, seals, and which of our three addresses your samples actually go to. Water does not go to Union.
4 lessons with forms, downloads and supply links.
Indoor and outdoor spore trap pairs, why the outdoor control decides the whole result, and how long to run the pump.
When a tape lift beats a swab, how to sample a non-porous versus a porous surface, and what to write in the location field so the report makes sense.
Category 3 water losses: what to sample, what it proves for the insurer, and how to keep a clean chain of custody through a dirty job.
Ice, overnight courier, seals, and which of our three addresses your samples actually go to. Water does not go to Union.
6 lessons with forms, downloads and supply links.
Cooling towers, potable loops and point-of-use fixtures. Bottle choice, volume, first-draw versus flushed, and recording temperature and chlorine at the tap.
ASHRAE 188 in plain terms: where to sample, how often, and what to do with a positive result before it becomes a notifiable event.
Sterile technique at the tap, why the bottle has thiosulfate in it, and the 30-hour holding time that decides whether your sample is usable.
Category 3 water losses: what to sample, what it proves for the insurer, and how to keep a clean chain of custody through a dirty job.
Six-hour stagnation, first-draw volume, and why the age of the property belongs on the form.
Ice, overnight courier, seals, and which of our three addresses your samples actually go to. Water does not go to Union.
5 lessons with forms, downloads and supply links.
Char, soot and ash on surfaces after a fire, and how a particulate result supports a restoration scope.
ASTM E1792 wipes, marking the wipe area, and the New York City 2 ft² floor rule that sends you to a different COC form.
Six-hour stagnation, first-draw volume, and why the age of the property belongs on the form.
Cyclone setup, calibrating at 2.5 L/min, full-shift sampling and what the OSHA action level means for your client.
Ice, overnight courier, seals, and which of our three addresses your samples actually go to. Water does not go to Union.
3 lessons with forms, downloads and supply links.
Summa canisters versus sorbent tubes, how to set a 24-hour flow controller, and recording start and end vacuum so the volume is defensible.
Char, soot and ash on surfaces after a fire, and how a particulate result supports a restoration scope.
Ice, overnight courier, seals, and which of our three addresses your samples actually go to. Water does not go to Union.