CGL Laboratory Safety and Procedures 5

Question 1

Which labeling system must be used on containers storing hazardous chemicals in a genealogical conservation lab under OSHA's Hazard Communication Standard (HazCom 2012)?

Accepted Answer

GHS (Globally Harmonized System) pictogram labels

Answer

HazCom 2012 aligns with GHS, requiring standardized pictogram labels on all hazardous chemical containers regardless of volume.

Question 2

What is the correct action if a researcher accidentally spills a small amount of glacial acetic acid (used in document deacidification) on their skin?

Accepted Answer

Flush continuously with large amounts of water for at least 15 minutes

Answer

The SDS for glacial acetic acid specifies immediate and prolonged water flushing; do not delay to apply neutralizers as they can cause an exothermic reaction.

Question 3

In genealogical archival practice, what does 'buffered' mean when describing storage tissue or folders?

Accepted Answer

An alkaline reserve (calcium carbonate) has been added to neutralize future acid migration

Answer

Buffered materials contain an alkaline reserve that counteracts acid migration from documents or environmental pollutants over time.

Question 4

When should unbuffered (non-alkaline) enclosures be used instead of alkaline-buffered ones?

Accepted Answer

For storing photographs, particularly albumen and cyanotype prints

Answer

Alkaline buffers can damage certain photo processes like albumen prints and cyanotypes; neutral or slightly acidic enclosures are preferred for these materials.

Question 5

What does the term 'inherent vice' mean in the context of genealogical document preservation?

Accepted Answer

A material's natural tendency to deteriorate due to its own chemical composition

Answer

Inherent vice refers to instability built into a material itself — for example, the acidity in wood-pulp paper that causes it to yellow and become brittle without any external cause.

(CGL) Certified Genealogical Lecturer Practice Test

(CGL) Certified Genealogical Lecturer Practice Test

CGL Laboratory Safety and Procedures 5