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ISO 14708-6:2019 Implants for surgery — Active implantable medical devices — P
ISO 14708-6:2019 Implants for surgery — Active implantable medical devices — Part 6: Particular requirements for active implantable medical devices intended to treat tachyarrhythmia (including impla
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ISO 14708-2:2019 Implants for surgery — Active implantable medical devices — P
ISO 14708-2:2019 Implants for surgery — Active implantable medical devices — Part 2:Cardiac pacemakers
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ISO 14649-17:2020 Industrial automation systems and integration — Physical devi
ISO 14649-17:2020 Industrial automation systems and integration — Physical device control — Data model for computerized numerical controllers — Part 17: Process data for additive manufacturing
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DIN 14649:2024 Explosion-proved lights for fire brigade
DIN 14649:2024 Explosion-proved lights for fire brigade
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ISO 14638-2015 产品几何技术规范(GPS) 矩阵模型
ISO 14638-2015 产品几何技术规范(GPS) 矩阵模型
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AS ISO 14692.1:2022 Petroleum and natural gas industries — Glass-reinforced ...
AS ISO 14692.1:2022 Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials
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AS ISO 14692.2:2022 Petroleum and natural gas industries — Glass-reinforced ...
AS ISO 14692.2:2022 Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 2: Qualification and manufacture
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AS ISO 14692.3:2022 Petroleum and natural gas industries — Glass-reinforced ...
AS ISO 14692.3:2022 Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 3: System design
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AS ISO 14692.4:2022 Petroleum and natural gas industries — Glass-reinforced ...
AS ISO 14692.4:2022 Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 4: Fabrication, installation and operation
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AWS D18.2:不锈钢焊缝颜色判定标准
Part 01
焊后颜色变化的本质:氧化膜的“温度密码”
奥氏体不锈钢焊接时,焊缝及热影响区(HAZ)在高温下与空气接触,表面会形成一层氧化膜。这层膜的厚度随温度和时间变化,对光产生干涉效应,从而呈现不同颜色。
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BS EN ISO 14529-2:2000 Plastics — Melamine/Phenolic Powder Moulding Compounds (
BS EN ISO 14529-2:2000 Plastics — Melamine/Phenolic Powder Moulding Compounds (MP-PMCs) — Part 2: preparatiion of test specimens and determination of properties
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BS EN ISO 14529-1:2000 Plastics — Melamine/Phenolic Powder Moulding Compounds (
BS EN ISO 14529-1:2000 Plastics — Melamine/Phenolic Powder Moulding Compounds (MP-PMCs) — Part 1: Designation System and Basis for Specifications
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中国纯碱工业协会推荐 纯碱行业人员进修教材之六——工程技术人员读本 1995
中国纯碱工业协会推荐 纯碱行业人员进修教材之六——工程技术人员读本 纯碱生产工艺与设备计算 王楚 主编 傅孟嘉 戎寿昌 周光耀 副主编 1995
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锅炉制造工艺学 (苏) 魏佳耶夫 (В.Д.Ведяев) 著 顾逢时 屠傅经 译 1958
锅炉制造工艺学 (苏) 魏佳耶夫 (В.Д.Ведяев) 著 顾逢时 屠傅经 译 1958
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机械制造工艺学 齐世恩 主编 1989
机械制造工艺学 齐世恩 主编 1989
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高等学校教学用书 焊接热过程计算 (苏) 雷卡林 (Н.Н.Рыкалин) 著 1958
高等学校教学用书 焊接热过程计算 (苏) 雷卡林 (Н.Н.Рыкалин) 著 徐碧宇 庄鸿寿 译 1958
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机械设计工艺基础 (第二版 ) 武汉建筑材料工业学院 编 1985
机械设计工艺基础 (第二版 ) 武汉建筑材料工业学院 编 1985
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BS EN ISO 14583:2001 Hexalobular socket pan head screws
BS EN ISO 14583:2001 Hexalobular socket pan head screws
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普通高等专科教育机电类规划教材 机械制造工艺学 江南大学 郑修本 1996
普通高等专科教育机电类规划教材 机械制造工艺学 江南大学 郑修本 上海机械专科学校 冯冠大 主编 1996
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BS EN 14529:2005 Respiratory protective devices — Self-contained open-circuit c
BS EN 14529:2005 Respiratory protective devices — Self-contained open-circuit compressed air breathing apparatus with half mask designed to include a positive pressure lung governed demand valve for
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SY∕T 0087.4-2023 钢质管道及储罐腐蚀评价标准 第4部分:
SY∕T 0087.4-2023 钢质管道及储罐腐蚀评价标准 第4部分:埋地钢质管道直流干扰腐蚀评价
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苏联企业劳动组织与技术定额制定原理 恩·得·基可夫 著 1951
苏联企业劳动组织与技术定额制定原理 恩·得·基可夫 著 中国人民大学工业企业组织与计划教研室译 1951
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毛料冲压工作技术定额制定法 张景渭 译 1953
毛料冲压工作技术定额制定法 张景渭 译 1953
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机械电子工业部 机电行业专业管理人员岗位培训教材 机械制造劳动定额制定与管理 1991
机械电子工业部 机电行业专业管理人员岗位培训教材 机械制造劳动定额制定与管理 (一般专业管理人员) 钦林森 主编 1991
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BS EN ISO 14021:2016+A1:2021 Environmental labels and declarations — Self-decla
BS EN ISO 14021:2016+A1:2021 Environmental labels and declarations — Self-declared environmental claims (Type II environmental labelling)
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BS EN ISO 13686:2013 Natural gas — Quality designation (ISO 13686:2013)
BS EN ISO 13686:2013 Natural gas — Quality designation (ISO 13686:2013)
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BS EN 13630-10:2005 Explosives for civil uses - Detonating cords and safety fuse
BS EN 13630-10:2005 Explosives for civil uses - Detonating cords and safety fuses - Part 10: Determination of initiating capability of detonating cords
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AWS D1.1 2025版6GR焊工这处变动
2025版本
2020版本
综上,2025版本中管径大于100,壁厚大于10时,覆盖厚度由大于等于5 改为大于等于 3,也并没有单独画线。不知道为什么变动
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ASTM F606/F606M-2019 测定内外螺纹紧固件,垫圈,直接拉力指示器及铆钉及机械
ASTM F606/F606M-2019 测定内外螺纹紧固件,垫圈,直接拉力指示器及铆钉及机械性能的试验方法
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ASTM A193/A193M-2020 高温设备用合金钢和不锈钢螺栓材料的标准规范(中文版)
ASTM A193/A193M-2020 高温设备用合金钢和不锈钢螺栓材料的标准规范(中文版)
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ASTM F2328-2017(Reapproved 2022)
ASTM F2328-2017(Reapproved 2022) 测定脱碳和渗碳淬硬和回火螺纹钢螺栓,螺钉,螺柱和螺母(正版)
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ASTM E381-2020 棒料,钢胚,初轧胚及锻件的宏观腐蚀的方法
ASTM E381-2020 棒料,钢胚,初轧胚及锻件的宏观腐蚀的方法
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BS EN ISO 13792-2005 建筑物的热性能 非机器制冷条件下夏季房间内温度的计算 简化法
BS EN ISO 13792-2005 建筑物的热性能 非机器制冷条件下夏季房间内温度的计算 简化法
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BS EN ISO 13802-2006 塑料 摆锤撞击试验机的鉴定 夏比、摆臂和拉伸冲击试验
BS EN ISO 13802-2006 塑料 摆锤撞击试验机的鉴定 夏比、摆臂和拉伸冲击试验
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ISO 13824:2020 Bases for design of structures — General principles on risk asse
ISO 13824:2020 Bases for design of structures — General principles on risk assessment of systems involving structures
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ISO 13898-1-1997/BS 6200-3.40.1-1997 Steel and iron — Determination of nickel,
ISO 13898-1-1997/BS 6200-3.40.1-1997 Steel and iron — Determination of nickel, copper and plasma atomic emission spectrometric method — Part 1: General requirements and sample dissolution
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ISO 13898-4:1997/BS 6200-3.40.4-1997 Steel and iron — Determination of nickel,
ISO 13898-4:1997/BS 6200-3.40.4-1997 Steel and iron — Determination of nickel, copper and plasma atomic emission spectrometric method — Part 4: Determination of cobalt content
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ISO 13900-1997 Steel - Determination of boron content - Curcumin spectrophotomet
ISO 13900-1997 Steel - Determination of boron content - Curcumin spectrophotometric method after distillation
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API STD 20D-2025 Qualification of Nondestructive Examination Services for Equipm
API STD 20D-2025 Qualification of Nondestructive Examination Services for Equipment Used in the Petroleum and Natural Gas Industry
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BS EN ISO 15610:2024 Specification and qualification of welding procedures fo...
BS EN ISO 15610:2024 Specification and qualification of welding procedures for metallic materials — Qualification based on tested welding consumables
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BS EN 1755:2024 Industrial trucks - Safety requirements and verification - Su...
BS EN 1755:2024 Industrial trucks - Safety requirements and verification - Supplementary requirements for operation in potentially explosive atmospheres
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BS EN ISO 15611:2024 Specification and qualification of welding procedures fo...
BS EN ISO 15611:2024
Specification and qualification of welding procedures for metallic materials — Qualification based on previous welding experience
金属材料焊接工艺的规范和评定 基于已有焊接经验的
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BS EN ISO 9000:2026 Quality management — Fundamentals and vocabulary
BS EN ISO 9000:2026 Quality management — Fundamentals and vocabulary
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BS EN ISO 10012:2026 Quality management — Requirements for measurement manageme
BS EN ISO 10012:2026 Quality management — Requirements for measurement management systems
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BS EN ISO 14001:2026 Environmental management systems — Requirements with guida
BS EN ISO 14001:2026 Environmental management systems — Requirements with guidance for use
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SH/T 3518-2025 石油化工阀门检验、试验与安装规范
SH/T 3518-2025 石油化工阀门检验、试验与安装规范
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BS EN ISO 5817:2023 Welding — Fusion-welded joints in steel, nickel, titaniu...
BS EN ISO 5817:2023 Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections
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BS EN 14717:2024 Welding and allied processes — Environmental check list
BS EN 14717:2024 Welding and allied processes — Environmental check list
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BS EN ISO 17405-2022 无损检测 超声波检测 焊接、轧制和爆炸产生的涂层检测技术
BS EN ISO 17405-2022
Non-destructive testing — Ultrasonic testing — Technique of testing claddings produced by welding, rolling and explosion
无损检测 超声波检测 焊接、轧制和爆炸产生的涂层检测技术
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API STD 603-2025 Corrosion-resistant, Bolted Bonnet Gate Valves — Flanged and B
API STD 603-2025 Corrosion-resistant, Bolted Bonnet Gate Valves — Flanged and Butt-welding Ends
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GB 24550-2024 汽车对行人的碰撞保护
GB 24550-2024 汽车对行人的碰撞保护
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ISO 24550:2019 Ergonomics — Accessible design — Indicator lights on consume...
ISO 24550:2019 Ergonomics — Accessible design — Indicator lights on consumer products
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焊工证书更换雇主后,是不是继续有效
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S22053+Q345R复合板,基层大于16mm能否用TOFD+TU+MT替代RT检测?
如题,47013.10-2015中如图所示,实际操作是否可行?
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2023版ASME BPVC英文原版现接受预定,欢迎订购
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液体渗透检测中关于时间变量的理解
在渗透检测验证中,应用的渗透剂渗透时间和显像时间根据 ASME V 第 6 章表 T-622 中规定的渗透检测规则和工艺卡的要求。这个时间变更是不是可以理解为这个时间范围的确定??
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GB/T 47554.1-2026/ISO 16784-1:2024 金属和合金的腐蚀 工业冷却水系统的腐蚀和污垢
GB/T 47554.1-2026/ISO 16784-1:2024 金属和合金的腐蚀 工业冷却水系统的腐蚀和污垢 第1部分:开式循环冷却水阻垢缓蚀剂中试评估指南和要求
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GB/T 47554.2-2026/ISO 16784-2:2024 金属和合金的腐蚀 工业冷却水系统的腐蚀和污垢
GB/T 47554.2-2026/ISO 16784-2:2024 金属和合金的腐蚀 工业冷却水系统的腐蚀和污垢 第2部分:应用中试试验台评估冷却水处理方案
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GB24544-2023坠落防护 速差自控器
GB24544-2023坠落防护 速差自控器
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API TR 579-A-2025 Development of FEA-based Reference Stress Solutions for Level
API TR 579-A-2025 Development of FEA-based Reference Stress Solutions for Level 2 and Level 3 Crack Assessments
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