ASA/ANSI S3.46-2013 (R2023): Hearing Aids
Before modern hearing aids, people in the 13th century with hearing loss were using hollowed out horns of animals, such as cows and rams. It was not until the 18th…
ISO 11027:1993—Pepper And Pepper Oleoresins
As “the king of spices,” pepper has been the most important traded spice in human history. At times, peppercorn made…
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