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Number of entries (Data is updated on a monthly basis): 46256
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GB/T 5453-1997

纺织品 织物透气性的测定

Textiles--Determination of the permeability of fabrics to air

GB/T 4702.9-1985

金属铬化学分析方法 结晶紫分光光度法测定锑量

Methods for chemical analysis of chromium metal--The crystal violet spectrophotometric method for the determination of antimony content

GB/T 4702.10-1985

金属铬化学分析方法 铜试剂分光光度法测定铜量

Methods for chemical analysis of chromium metal--The cupral spectrophotometric method for the determination of copper content

GB/T 4702.11-1985

金属铬化学分析方法 茜素紫分光光度法测定锡量

Methods for chemical analysis of chromium metal--The alizarin violet spectrophotometric method for the determination of tin content

GB/T 16405-1996

声学 管道消声器无气流状态下插入损失测量 实验室简易法

Acoustics--Measurement of insertion loss of ducted silencers without flow--Laboratory survey method

GB/T 4079-1994

用于电离辐射探测器的放大器和电荷灵敏前置放大器的测试方法

Test procedures for amplifiers and charge-sensitive preamplifiers used with detectors of ionizing radiation

GB/T 15433-1995

环境空气 氟化物的测定 石灰滤纸·氟离子选择电极法

Ambient air--Determination of the fluoride--Method by lime-paper sampling and fluorine ion-selective electrode analysis

GB/T 4192-1984

电真空器件及电光源用钨、钼材料电阻率的测试方法

Method for the determination of the resistivity of tungsten and molybdenum used in electric light sources and vacuumtubes

GB 5086.1-1997

固体废物浸出毒性浸出方法 翻转法

Test method standard for leaching toxicity of solid wastes--Roll over leaching procedure

GB/T 15130.1-1994

信息处理 数据交换用90 mm改进调频制记录的位密度为15916 磁通翻转/弧度、每面80条磁道的软磁盘 第一部分:尺寸、物理性能和磁性能

Information processing--Data interchange on 90mm (35in) flexible disk cartridges using modified frequency modulation recording at 15916 ftprad, on 80 tracks on each side--Part1:Dimensional, physical and magnetic characteristics

Number of entries (Data is updated on a monthly basis): 46256
Weiter Weiter| 39231 - 39240 | 39241 - 39250|39251 - 39260 |Weiter Weiter