Reference

Hand truck vs dolly vs platform cart: the upright two-wheeler climbs stairs and levers tall loads, the flat dolly carries the most per dollar but helps with nothing, and the deck-and-handle cart wins mixed loads over distance. Includes the decision table, convertible dual ratings, caster math, tires, and the NIOSH lifting threshold.

What size generator do you need for power tools: the running-vs-starting-watts distinction, a tool draw table, and a four-step worksheet that adds concurrent loads plus the largest motor surge. Also covers what OSHA 1926.404(f)(3) actually requires for grounding, CO-shutoff certification, and sizing the cord for the last hundred feet.

Every OSHA extension cord requirement with its exact citation: the three-wire hard-usage rule of 1926.405(a)(2)(ii)(J), GFCI protection vs the assured equipment grounding conductor program, the splice and repair restrictions, strain relief, and routing. Closes with the daily two-minute inspection routine that satisfies all of them.

The extension cord gauge chart for jobsite loads: which AWG carries which amp draw at 25, 50, 100 and 150 feet, built on cord-set ratings and a 5% voltage-drop budget you can verify from the formula shown. Covers 12/3 vs 14/3, SJTW jacket codes, OSHA's three-wire hard-usage rule, and the troubleshooting section for a cord that runs hot.

A first aid kit inspection checklist mapped to what OSHA actually requires: the continuous adequacy duty in 29 CFR 1910.151(b) and construction's weekly check in 1926.50(d)(2). Covers the pass/fail table, the eight-step procedure, inspection frequency by workplace type, expiration dates, and the record that proves the cadence happened.

Hearing protector fit testing measures what one worker actually gets from one earplug, reported as a personal attenuation rating in decibels. OSHA's February 2026 bulletin calls it a best practice but says a PAR cannot replace the NRR for selection. Covers NRR versus PAR, the 2025 NIOSH change, target PAR, and a worked example.

Finding a needle in a trash bag is a routine event in building services and a regulated one. This guide covers retrieval by mechanical means only, the container the sharp has to go into, why a cut-resistant glove is not a needlestick-proof glove, what to do in the after a puncture, and how to stop the same route producing another.

Safety glasses and goggles are not interchangeable once liquids are involved. Glasses are open at the top, sides and bottom, so a splash that arrives from any angle but straight ahead goes around them. This guide explains the D3 splash marking, direct versus indirect venting, when a face shield is required on top, and gives a task table.

A facility safety checklist answers a different question from a crew checklist: not what the shift does, but what the building must provide. This walkthrough covers walking surfaces, egress, eyewash and emergency equipment, electrical, storage and signage, tags each item with its OSHA paragraph, and ends with a worked pass over one floor.

A janitorial safety checklist is only useful if each line traces to a real requirement. This one splits custodial checks into daily, weekly and monthly cadences across chemicals, floor care, restroom and waste handling, equipment and PPE, tags each item with the OSHA standard behind it, and ends with a worked restroom route.

Modern UL 217 added three tests no residential smoke alarm had to pass before: smouldering and flaming polyurethane foam fires, and a cooking nuisance test the alarm passes by staying silent. This guide covers how the 8th, 9th and 10th Editions differ, what NIST measured on real alarms, and whether yours must be replaced.

A smoke alarm that goes off with no fire is nearly always detecting something real that is not smoke: cooking aerosols, shower steam, dust, an insect in the chamber, or a sensor that has drifted with age. This guide works the causes by symptom, gives the durable fix for each, and covers what NIST found about new alarms.