I'd not be surprised if there was such a thing as "standard household dust". There's standard peanut butter after all: https://catalog.data.gov/dataset/srm-2387

I'd not be surprised if there was such a thing as "standard household dust". There's standard peanut butter after all: https://catalog.data.gov/dataset/srm-2387-peanut-butter https://catalog.data.gov/dataset/srm-2387-peanut-butter