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

MT 20-1990 立井多绳提煤箕斗 现行 发布日期 :  1990-10-26 实施日期 :  1990-11-01

定价: 17元 / 折扣价: 15 加购物车

在线阅读 收 藏

This specification covers a group of common requirements that apply to rolled steel plates for pressure vessels. The steel shall be made in an open-hearth, basic-oxygen, or electric-arc furnace process. Sampling and methods for chemical analysis are discussed. Yield strength tests, tension tests, and notch-toughness tests shall be made in accordance to the product specification to conform to the specified requirements.1.1 This general requirements specification2 covers a group of common requirements that, unless otherwise specified in the applicable product specification, apply to rolled steel plates for pressure vessels covered by each of the following product specifications issued by ASTM:Title of Specification ASTM DesignationAPressure Vessel Plates, Alloy Steel, Nickel A203/A203MPressure Vessel Plates, Alloy Steel, Molybdenum A204/A204MPressure Vessel Plates, Alloy Steel, Manganese- Vanadium-Nickel A225/A225MStainless Chromium Steel-Clad Plate A263Stainless Chromium-Nickel Steel-Clad Plate A264Nickel and Nickel-Base Alloy-Clad Steel Plate A265Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength A285/A285MPressure Vessel Plates, Carbon Steel, Manganese-Silicon A299/A299MPressure Vessel Plates, Alloy Steel, Manganese- Molybdenum and Manganese-Molybdenum-Nickel A302/A302MPressure Vessel Plates, Alloy Steel, Double- Normalized and Tempered 9 % Nickel A353/A353MPressure Vessel Plates, Alloy Steel, Chromium- Molybdenum A387/A387MPressure Vessel Plates, Carbon Steel, High Strength Manganese A455/A455MPressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service A515/A515MPressure Vessel Plates, Carbon Steel, Moderate- and Lower-Temperature Service A516/A516MPressure Vessel Plates, Alloy Steel, High-Strength, Quenched and Tempered A517/A517MPressure Vessel Plates, Alloy Steel, Quenched and Tempered, Manganese-Molybdenum and Manganese- Molybdenum-Nickel A533/A533M   Title of Specification ASTM DesignationAPressure Vessel Plates, Heat-Treated, Carbon- Manganese-Silicon Steel A537/A537MPressure Vessel Plates, Alloy Steel, Quenched-and- Tempered, Chromium-Molybdenum, and Chromium- Molybdenum-Vanadium A542/A542MPressure Vessel Plates, Alloy Steel, Quenched and Tempered Nickel-Chromium-Molybdenum A543/A543MPressure Vessel Plates, Alloy Steel, Quenched and Tempered 7, 8, and 9 % Nickel A553/A553MPressure Vessel Plates, Carbon Steel, Manganese- Titanium for Glass or Diffused Metallic Coatings A562/A562MPressure Vessel Plates, Carbon Steel, High Strength, for Moderate and Lower Temperature Service A612/A612MPressure Vessel Plates, 5 % and 51/2 % Nickel Alloy Steels, Specially Heat Treated A645/A645MPressure Vessel Plates, Carbon-Manganese-Silicon Steel, for Moderate and Lower Temperature Service A662/A662MPressure Vessel Plates, Carbon-Manganese-Silicon Steel, Quenched and Tempered, for Welded Pressure Vessels A724/A724MPressure Vessel Plates, Low-Carbon Age-Hardening Nickel-Copper-Chromium-Molybdenum-Columbium (Niobium) Alloy Steel A736/A736MPressure Vessel Plates, High-Strength Low-Alloy Steel A737/A737MPressure Vessel Plates, Heat-Treated, Carbon- Manganese-Silicon Steel, for Moderate and Lower Temperature Service A738/A738MPressure Vessel Plates, Alloy Steel, Chromium- Molybdenum-Vanadium A832/A832MSteel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP) A841/A841MSteel Plates, 9 % Nickel Alloy, for Pressure Vessels, Produced by the Direct-Quenching Process A844/A844MPressure Vessel Plates, Alloy Steel, Chromium- Molybdenum-Tungsten A1017/A1017M1.1.1 This general requirements specification also covers a group of supplementary requirements that are applicable to several of the above product specifications as indicated therein. Such requirements are provided for use if additional testing or additional restrictions are required by the purchaser, and apply only if specified individually in the purchase order.1.2 Appendix X1 provides information on coil as a source of plates for pressure vessels.1.3 Appendix X2 provides information on the variability of tensile properties in plates for pressure vessels.1.4 Appendix X3 provides information on the variability of Charpy-V-Notch impact test properties in plates for pressure vessels.1.5 Appendix X4 provides information on cold bending of plates, including suggested minimum inside radii for cold bending.1.6 These materials are intended to be suitable for fusion welding. When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized.1.7 In case of any conflict in requirements, the requirements of the applicable product specification prevail over those of this general requirements specification.1.8 Additional requirements that are specified in the purchase order and accepted by the supplier are permitted, provided that such requirements do not negate any of the requirements of this general requirements specification or the applicable product specification.1.9 For purposes of determining conformance with this general requirements specification and the applicable product specification, values are to be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E29.1.10 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.1.11 This general requirements specification and the applicable product specification are expressed in both inch-pound units and SI units; unless the order specifies the applicable “M” specification designation (SI units), the plates are to be furnished to inch-pound units.1.12 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: 843 加购物车

在线阅读 收 藏
JG/T 20-1999 空气分布器性能试验方法 现行 发布日期 :  1999-06-04 实施日期 :  1999-06-04

定价: 32元 / 折扣价: 28 加购物车

在线阅读 收 藏
QX/T 20-2003 直接辐射表 现行 发布日期 :  2003-07-01 实施日期 :  2003-12-01

本标准规定了工作级热电式直接辐射表(以下简称直接辐射表)的组成、技术要求、试验方法、检验规则、标志、包装、运输、贮存和成套性等。 本标准适用于气象、农业、工业、国防、科研等部门测定太阳直接辐射的仪器。

定价: 24元 / 折扣价: 21 加购物车

在线阅读 收 藏
JJG 20-2001 标准玻璃量器 现行 发布日期 :  2001-11-30 实施日期 :  2002-03-01

本规程适用于新制造和使用中的标准玻璃量器的首次检定和后续检定。

定价: 39元 / 折扣价: 34 加购物车

在线阅读 收 藏

定价: 337元 / 折扣价: 287 加购物车

在线阅读 收 藏

定价: 1665元 / 折扣价: 1482 加购物车

在线阅读 收 藏
T/AHEMA 20-2022 餐饮油烟排放连续在线监控技术规范 现行 发布日期 :  2022-06-01 实施日期 :  2022-06-01

本文件规定了餐饮油烟排放连续在线监控系统的系统组成、功能、技术、性能、安装、软件管理平台、验收、运行维护等有关要求。
本文件适用于安徽省内行政管辖区域餐饮服务单位经营期间的油烟污染物排放及净化设施工况实时在线监控管理,其他地方可参照执行。
本文件不适用于居民家庭油烟排放。

定价: 38元 / 折扣价: 33 加购物车

在线阅读 收 藏
T/CGCC 20-2018 焙烤食品冷冻面团 现行 发布日期 :  2018-04-28 实施日期 :  2018-06-01

本标准规定了冷冻面团的术语和定义、产品分类、技术要求、检验方法、检验规则、标签、标志、包装、贮存、运输及销售等的要求。
本标准适用于焙烤食品冷冻面团产品的生产、检验和销售。

定价: 24元 / 折扣价: 21 加购物车

在线阅读 收 藏
T/CHINABICYCLE 20-2023 时尚产品指南 自行车与电动自行车 现行 发布日期 :  2023-01-10 实施日期 :  2023-01-10

本文件给出了自行车、电动自行车及零部件产品的时尚元素和评价原则。本文件适用于自行车、电动自行车及零部件生产企业从事时尚化产品的研究、设计、生产和评价。

定价: 24元 / 折扣价: 21 加购物车

在线阅读 收 藏
T/CSPSTC 20-2019 建筑信息模型(BIM)工程应用评价导则 现行 发布日期 :  2019-03-08 实施日期 :  2019-06-15

本标准规定了建筑信息模型(BIM)工程应用评价的评价对象、评价指标、评价方式与方法。
本标准适用于对建筑信息模型(BIM)在工程应用环节中的创建、使用和管理等事项进行评价,为各相关方提供建筑信息模型(BIM)工程应用及管理实施的指导依据。

定价: 24元 / 折扣价: 21 加购物车

在线阅读 收 藏
T/CSRA 20-2022 塑料成分测试 可降解塑料定量分析方法 现行 发布日期 :  2022-12-20 实施日期 :  2023-01-21

本文件描述了用核磁共振波谱仪和高效液相色谱仪测定塑料中聚对苯二甲酸/己二酸/丁二酯(PBAT)、聚丁二酸丁二酯(PBS)和聚乳酸(PLA)含量的方法。本文件适用于以聚对苯二甲酸/己二酸/丁二酯(PBAT)、聚丁二酸丁二酯(PBS)、聚乳酸(PLA)为原料,由以上单一原料或者几种原料共混以及添加无机成分和/或助剂加工而成的塑料制品。

定价: 31元 / 折扣价: 27 加购物车

在线阅读 收 藏
T/CAQI 20-2016 废水生物增强处理 圆柱状有机生物载体 现行 发布日期 :  2016-12-22 实施日期 :  2017-01-01

本标准规定了废水生物增强处理用圆柱状有机生物载体的术语和定义、分类与命名、材料、要求、试验方法、检验规则、标志、包装、运输和储存等。本标准适用于废水生物增强处理中使用的圆柱状有机生物载体。

定价: 24元 / 折扣价: 21 加购物车

在线阅读 收 藏
ASTM D20-20 Standard Test Method for Distillation of Road Tars (Withdrawn 2023) Withdrawn, No replacement 发布日期 :  实施日期 : 

定价: 0 加购物车

在线阅读 收 藏
5331 条记录,每页 15 条,当前第 1 / 356 页 第一页 | 上一页 | 下一页 | 最末页  |     转到第   页