CPR Contents Cleaning & Decontamination Processes 3

Question 1

Which chemical classification describes cleaning agents that have a pH above 7 and are effective at breaking down greasy soot deposits?

Accepted Answer

Alkaline cleaners

Answer

Alkaline cleaners have a high pH that effectively saponifies and emulsifies oily soot and smoke residue for easier removal.

Question 2

When performing dry cleaning of smoke-damaged documents, which tool is most commonly used first?

Accepted Answer

Dry chemical sponge

Answer

Dry chemical sponges (also called chemical sponges or dry soot sponges) are used first to lift loose soot from surfaces like paper without smearing.

Question 3

In the context of contents cleaning, 'thermal fogging' is best described as:

Accepted Answer

A process that vaporizes deodorizing solvent to penetrate affected areas

Answer

Thermal fogging vaporizes a deodorizing solvent using heat, allowing the particles to penetrate surfaces and neutralize embedded odor molecules.

Question 4

What is the recommended approach for artwork and documents affected by Category 1 water damage when restoration is the goal?

Accepted Answer

Freeze-drying to stabilize and restore the items

Answer

Freeze-drying (lyophilization) is the preferred technique for stabilizing and restoring wet documents and artwork by removing moisture through sublimation without further damage.

Question 5

A restorer finds metal items with rust forming after water damage. What type of cleaning agent is appropriate to address corrosion on steel tools?

Accepted Answer

Mildly acidic rust remover

Answer

Mildly acidic rust removers react chemically with iron oxide (rust) to dissolve corrosion from metal surfaces without damaging the base metal when used correctly.

(CPR) Certified Professional Restorer Practice Test

(CPR) Certified Professional Restorer Practice Test

CPR Contents Cleaning & Decontamination Processes 3