H&S Historical Evidence Library
Gaskets
Start with what you remember, then test the history against period-specific records. This page organizes a historical research path; it does not establish what was present at a particular workplace.
Memory clue: Flange gaskets, sheet gasket material, hand-cut gaskets, equipment casing gaskets
Work activities worth reconstructing
- Removing old gaskets
- Scraping or cleaning sealing surfaces
- Cutting or fitting replacement gasket material
- Opening flanges, casings or equipment
Equipment and systems that may help identify the history
Pumps
Valves
Boilers
Furnaces
Heat exchangers
Pipe connections
Time changes the answer
Historical use varied by application and manufacturer; period-specific identification is required.
Historical sources used for this research path
- EPA — List of Uses Covered under April 2019 Final Rule
- EPA — Life Cycle of Asbestos in Commercial and Industrial Use
These sources support the generic historical relationship described here. They do not establish a manufacturer, product or material at a particular New York workplace.
Continue from your memory
Tell us what you remember → Historical Evidence Library → New York Workplace Finder →