ASTM E676-1994(1998) 可互换圆锥形接头标准规范

标准号：ASTM E676-1994(1998)
中文标准名称：可互换圆锥形接头标准规范
英文标准名称：Standard Specification for Interchangeable Taper-Ground Joints
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
国际标准分类号：71.040.20 (Laboratory ware and related apparatus)
适用范围： Note 1-The dimensions pertaining to full-length, medium-length, and short-length joints, other than for the tolerance on length of grind, were taken directly from the now obsolete Commercial Standard CS 21. Note 2-Tolerances on the diameters of the international-length joints do not agree with those given in ISO Recommendation R383. These tolerances have been established to agree with those of CS 21 in order to prevent the negative projection (large end of inner joint being smaller than large end of outer joint) permitted by ISO. Note 3-Although glass is the most commonly used material for ground joints, other materials may be used as specified. Taper-ground joints constructed from glass should be of suitable chemical and thermal properties in accordance with Specification E438. Joints should be as free as possible of visible defects and conform to Specification E671.