Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM C858-18
Năm ban hành 2018
Publication date
Tình trạng
W - Hết hiệu lực
Status |
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Tên tiếng Anh
Title in English Standard Specification for Underground Precast Concrete Utility Structures
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 4
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 This specification covers the recommended design criteria and manufacturing practices for monolithic or sectional precast concrete utility structures. Concrete pipe and box culverts are not covered under this specification. Also, precast concrete manholes covered in Specification C478 are excluded from this specification. 1.2 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. 1.3 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.
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