微信公众号随时随地查标准

QQ交流1群(已满)

QQ群标准在线咨询2

QQ交流2群

购买标准后,可去我的标准下载或阅读
B78.5-93 (R2000) Computer-Aided Design Drafting (Buildings) 现行 发布日期 :  1970-01-01 实施日期 : 

1. Scope 1.1 This Standard applies to the computer-aided preparation of building working drawings. In general context, it establishes detailed recommendations on symbols and their application for computer-aided design drafting (CADD) for the building

定价: 774元 / 折扣价: 658

在线阅读 收 藏

5.1 This practice is used for drafting impact test specification requirements, and it presupposes no special familiarity with statistical methods. It provides for specification values that will pass acceptable lots with a high degree of certainty. The impact test requirement is intended to discriminate between acceptable materials and manufacturing methods and those which are not; it is not a simulated service test.1.1 This practice describes a procedure for setting up impact test requirements on the basis of test data obtained by Test Method D2444.1.2 This practice is applicable to thermoplastic pipe and fittings.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 standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 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.

定价: 515元 / 折扣价: 438 加购物车

在线阅读 收 藏
2 条记录,每页 10 条,当前第 1 / 1 页 第一页 | 上一页 | 下一页 | 最末页  |     转到第   页