1.1 This specification establishes the requirements for brass and copper pipe nipples in standard pipe sizes from 1/8 to 8 in., inclusive, in standard lengths, and chromium-plated pipe nipples in standa This specification establishes the requirements for brass and copper pipe nipples within a specified size range. Chromium-plated pipe nipples covered by this specification are intended for use in the interior of decorative appliances. Both brass and co