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【国外标准】 Standard Specification for Concrete Masonry Units for Construction of Catch Basins and Manholes
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2024-02-28
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标准简介适用范围：
This specification covers solid precast segmental concrete masonry units made from hydraulic cement, water, and suitable mineral aggregates, with or without the inclusion of other materials. The units are intended for use in the construction of catch basins and manholes. All units shall be sound and free of cracks or other defects that interfere with the proper placing of the unit.1.1 This specification covers solid precast segmental concrete masonry units made from hydraulic cement, water, and suitable mineral aggregates, with or without the inclusion of other materials. The units are intended for use in the construction of catch basins and manholes.1.2 The text of this standard referenced notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
标准号：
ASTM C139-23
标准名称：
Standard Specification for Concrete Masonry Units for Construction of Catch Basins and Manholes
英文名称：
Standard Specification for Concrete Masonry Units for Construction of Catch Basins and Manholes标准状态：
Active-
发布日期：
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实施日期：
出版语种：
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