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Number of entries (Data is updated on a monthly basis): 81989
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GB/T 42857-2023

变压吸附提纯氢气系统安全要求

Safety of pressure swing adsorption systems for hydrogen purification

GB/T 6150.12-2023

钨精矿化学分析方法 第12部分:二氧化硅含量的测定 硅钼蓝分光光度法和重量法

Methods for chemical analysis of tungsten concentrates—Part 12: Determination of silicon dioxide content—Silicomolybdenum blue spectrophotometry and gravimetry

GB/T 42677-2023

钢管无损检测 无缝和焊接钢管表面缺欠的液体渗透检测

Non-destructive testing (NDT) methods of steel tubes—Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections

DIN CEN ISO/TS 27469

Erdöl-, petrochemische und Erdgasindustrie - Prüfverfahren für Brandschutzklappen (ISO/TS 27469:2010); Englische Fassung CEN ISO/TS 27469:2011

Petroleum, petrochemical and natural gas industries - Method of test for fire dampers (ISO/TS 27469:2010); English version CEN ISO/TS 27469:2011

GB/T 18851.1-2024

无损检测 渗透检测 第1部分:总则

Non-destructive testing—Penetrant testing—Part 1: General principles

GB/T 44922-2024

增材制造 鉴定原则 航空航天用金属激光粉末床熔融设备操作人员资格鉴定

Additive manufacturing—Qualification principles—Qualifying machine operators of laser metal powder bed fusion machines and equipment used in aerospace applications

GB/T 19799.2-2024

无损检测 超声检测试块 第2部分:2号标准试块

Non-destructive testing—Ultrasonic testing block—Part 2: Calibration block No.2

GB/T 18375-2024

假肢 下肢假肢的结构检验 要求和试验方法

Prosthetics—Structural testing of lower-limb prostheses—Requirements and test methods

GB/T 41869.4-2024

光学和光子学 微透镜阵列 第4部分:几何特性测试方法

Optics and photonics—Microlens arrays—Part 4: Test methods for geometrical properties

GB/T 44887.10-2024

IPv6演进技术要求 第10部分:支持IP网络切片的增强型虚拟专用网(VPN+)

IPv6 evolution technical requirements—Part 10:enhanced VPN(VPN+)for supporting IP network slicing

Number of entries (Data is updated on a monthly basis): 81989
Weiter Weiter| 311 - 320 | 321 - 330|331 - 340 |Weiter Weiter