lead soap 예문

예문

1. During the 1950s the use of lead soaps was eliminated and replaced by zinc and phosphorus compounds such as zinc dithiophosphate.
2. The early extreme pressure additives were based on lead salts of fatty acids ( " lead soaps " ), " active sulfur " compounds ( e . g . thiols and elementary sulfur ), and chlorinated compounds.
3. In the United States, the Occupational Safety and Health Administration has set the permissible exposure limit for lead exposure in the workplace as 0.05 mg / m 3 over an 8-hour workday, which applies to metallic lead, inorganic lead compounds, and lead soaps.