定价： 19元 / 折扣价： 17 元 加购物车

本指导性技术文件规定了卷烟制造过程质量风险评估的方法。
本指导性技术文件适用于原料贮存、烟用材料贮存、制丝、滤棒成型、卷制包装及成品贮存等卷烟制造过程质量风险的评估。

定价： 28元 / 折扣价： 24 元 加购物车

本标准适用于地区电网调度控制系统设计、研发、建设和运维。

定价： 24元 / 折扣价： 21 元 加购物车

本标准规定了自由活塞薄壁取土器的术语和定义、分类和标记、要求、试验方法、检验规则及标志、包装、运输和贮存。本标准适用于在钻孔中采取软塑、可塑及粉土、粉砂Ⅰ级质量土试样的取土器。

定价： 21元 / 折扣价： 18 元 加购物车

本标准规定了动物和动物产品沙门氏菌检测方法。 本标准适用于动物和动物产品的沙门氏菌检测。

定价： 19元 / 折扣价： 17 元 加购物车

定价： 590元 加购物车

This specification covers three grades of zirconium and zirconium alloy bar and wire as grade R60702, unalloyed zirconium; grade R60704, zirconium-tin; and grade R60705, zirconium-niobium. The chemical composition; and mechanical properties requirements, such as tensile strength, yield strength, and elongation; are detailed.1.1 This specification2 covers three grades of zirconium and zirconium alloy bar and wire.1.2 Unless a single unit is used, for example corrosion mass gain in mg/dm2, the values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. SI values cannot be mixed with inch-pound values.1.3 The following precautionary caveat pertains only to the test methods portions of this specification. 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.1.4 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.

定价： 590元 加购物车

This standard defines the model and command set extensions to facilitate operation of zoned block devices. The clauses in this standard, implemented in conjunction with the applicable clauses of SPC-6 and SBC-5, specify the standard command set for zoned block devices.

定价： 570元 / 折扣价： 485 元 加购物车

被HJ550-2015代替

定价： 无文本 / 折扣价： 0 元

本标准适用于地表水、工业废水和生活污水中钴的测定

定价： 无文本 / 折扣价： 0 元

定价： 20元 / 折扣价： 17 元

本标准规定了安全技术防范管理信息的信息代码。
本标准适用于安全技术防范管理中的信息处理和交换。

定价： 21元 / 折扣价： 18 元 加购物车

This specification covers three grades of ferrocolumbium, designated low-alloy steel grade, alloy and stainless steel grade, and high-purity grade. The material shall conform to the requirements as to chemical composition. Also, the ferrocolumbium shall be available in the sizes and tolerances specified.1.1 This specification covers three grades of Ferrocolumbium (ferroniobium), designated Low-Alloy Steel Grade, Alloy and Stainless Steel Grade, and High-Purity Grade.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.

定价： 515元 加购物车

定价： 1099元 / 折扣价： 979 元 加购物车

定价： 515元 加购物车