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Class 1 · Prevention through Design · HIER

New parts washer: A = flammable solvent + LEL + LEV + respirators. B = heated aqueous detergent in a closed interlocked cabinet, 18% higher capital. Best PtD recommendation?

Class 1 · Prevention through Design · HIER

Mezzanine valve at 4.2 m with no platform. Operations: we will use a ladder. Strongest PtD comment?

Class 1 · Prevention through Design · HIER

Robot cell has a light curtain only on the operator side. Maintenance jogs from the rear with power on. Best life-cycle design change?

Class 1 · Prevention through Design · STEM

You are the CSP reviewing a live decision at a pharma suite changeover. Operations proposes a convenience path. Using the class rule, which option is strongest? Focus: NIOSH PtD is best described as:.

Class 1 · Prevention through Design · HIER

Adhesive X is a sensitizer; Y is not but needs 10 more minutes clamp time. Production wants X. Best CSP position at design freeze?

Class 1 · Prevention through Design · HIER

Brownfield cannot drop the solvent. Budget allows either a dedicated ventilated room or portable fans plus PPE. Best remaining PtD move?

Class 1 · Prevention through Design · HIER

You are the CSP reviewing a live decision at a hospital utility plant shutdown. Operations proposes a convenience path. Using the class rule, which option is strongest? Focus: Least consistent with PtD.

Class 1 · Prevention through Design · TOOL

Best use of analysis as a design aid before steel is ordered?

Class 1 · Prevention through Design · HIER

A stamping line is still on the drawing board. Production wants the existing 110 dBA press because operators already have muffs. Best CSP recommendation?

Class 1 · Prevention through Design · HIER

Loading-dock concept shows trucks backing to an open pit. Operations proposes a spotter and wheel chocks. Strongest PtD comment?

Class 1 · Prevention through Design · STEM

A solvent substitution study is complete and aqueous cleaner is approved. The last sentence of the capital request says the purchase order for the original solvent washer has already been issued and is non-cancellable. Best remaining move?

Class 1 · Prevention through Design · TOOL

Before steel is ordered for a new mixing mezzanine, which analysis actually serves PtD?

Class 1 · Prevention through Design · FIN

Finance offers to buy extra liability insurance rather than fund the aqueous substitution already shown as feasible. Best CSP position?

Class 1 · Prevention through Design · HIER

Control-voltage decision is still open: 24 VDC or 480 VAC at the operator station. Maintenance prefers 480 so extra transformers are not needed. Best PtD call?

Class 2 · Hierarchy of Controls · HIER

New paint line. Isocyanate coating A is already in the plant. Waterborne coating B has no NCO group but adds 8 minutes oven time. Production wants A plus a full SAR program by Monday. Best control?

Class 2 · Hierarchy of Controls · HIER

A new punch press is on the purchase sheet. The vendor’s base model has an unguarded point of operation; the option package adds a fixed barrier interlocked to the clutch. Operations says gloves and a buddy system are cheaper. Best CSP call?

Class 2 · Hierarchy of Controls · HIER

A 110 dBA blower has not been ordered. Hearing conservation, annual audiograms, and custom muffs are already written into the commissioning plan. Best remaining control?

Class 2 · Hierarchy of Controls · STEM

The last sentence of the stem says the customer contract freezes the isocyanate formulation and substitution is closed. Budget remains for a robotic enclosed booth or for SAR and a permit. Best control?

Class 2 · Hierarchy of Controls · HIER

Die-cast cells run 38 °C WBGT. Facilities can add local cooling and exhaust, or issue a water/rest/shade schedule and cooling vests. Design is not frozen. Best control?

Class 2 · Hierarchy of Controls · PELTLV

Personal samples on a solvent blend are at 40% of the OSHA PEL and 90% of the ACGIH TLV. Engineering wants to declare victory with half-mask APRs. A less-volatile substitute is still on the approved-materials list. Best CSP position?

Class 2 · Hierarchy of Controls · TOOL

A team scores an FMEA and picks the row with the worst RPN, which is “operator fails to don respirator.” They fund a better cartridge. Substitution of the chemical is still open. What went wrong?

Class 2 · Hierarchy of Controls · HIER

Which option is least effective as a primary control while a machine guard can still be specified?

Class 2 · Hierarchy of Controls · FIN

Finance prefers a higher insurance limit on the paint line instead of funding the powder-coat conversion. Best CSP position?

Class 2 · Hierarchy of Controls · HIER

A packaging robot can be specified with a full perimeter interlocked fence or with floor tape, horns, and high-visibility vests. Pedestrians currently walk the planned path. Best control?