The information about beryllium dust vs the beryllium/copper alloy is correct.
Take a ride with me in my way-back machine. Decades ago when I worked in environmental control one of the sites I inspected was a beryllium smelter. I think it was the only one in the United States. Since I was told the ore came from South America, I always thought it was funny that the plant was located in my territory in a small town in northwestern Ohio.
The smelting and machining processes required strict environmental controls and personal protection including respirators and skin protection. The finished beryllium/copper alloy products (non-sparking hand tools)were safe to use without gloves. In fact I saw their non-sparking drum wrenches in use at many of the other sites I inspected.
Bottom line, don't worry about the alloy.
Take a ride with me in my way-back machine. Decades ago when I worked in environmental control one of the sites I inspected was a beryllium smelter. I think it was the only one in the United States. Since I was told the ore came from South America, I always thought it was funny that the plant was located in my territory in a small town in northwestern Ohio.
The smelting and machining processes required strict environmental controls and personal protection including respirators and skin protection. The finished beryllium/copper alloy products (non-sparking hand tools)were safe to use without gloves. In fact I saw their non-sparking drum wrenches in use at many of the other sites I inspected.
Bottom line, don't worry about the alloy.