共找到 150 條與 相對檢測水平（RLOD） 相關(guān)的標(biāo)準(zhǔn)，共 10 頁
Determination of dissolved nitrous oxide in seawater—Headspace equilibrium gas chromatography method
This International Standard specifies a method for determining the constant-head water flow capacity within the plane of a geotextile
Geotextiles and geotextile-related products - Determination of water flow capacity in their plane (ISO 12958:2010)
INTERNATIONAL TELEPHONE CIRCUITS - PRINCIPLES, DEFINITIONS AND RELATIVE TRANSMISSION LEVELS
Non-destructive examination of welds. Radiographic examination of welded joints. Acceptance levels.
在傳輸工程中，通常直接用伏特或瓦特的數(shù)值來表征信號的大小是不切實(shí)際的。取而代之的是使用以"dB"表示的對數(shù)度量，來表征信號大小與某個選定參考值的關(guān)系。常用的名稱有"功率電平差"、"電壓電平差"等，均以"dB"表示。與標(biāo)準(zhǔn)情況的電平差簡稱為"電平"。損耗和增益也以"dB"度量。 術(shù)語"相對電平"在過
The use of the decibel and of relative levels in speechband telecommunications (Study Group 12)
Microwave ferrite devices. Methods of measurement of phase shift at a low power level
Transmission signal nominal relative levels and input and output impedance of the interconnection points
Recreational diving services - Safety related minimum requirements for the training of recreational scuba divers - Part 3: Level 3 - Dive leader; German version EN 14153-3:2003
Non-destructive testing of welds. Acceptance levels for radiographic testing. Aluminium and its alloys
This European standard specifies a method for determining the constant-head water flow capacity within the plane of a geotextile or geotextile-related
Geotextiles and geotextile-related products - Determination of water flow capacity in their plane
This International Standard specifies a method for determining the constant-head water flow capacity within the plane of a geotextile
Geotextiles and geotextile-related products - Determination of water flow capacity in their plane (ISO 12958:2010)
Non-destructive testing of welds – Phased array ultrasonic testing (PAUT) – Acceptance levels (ISO 19285:2017)
NON-DESTRUCTIVE EXAMINATION OF WELDS. RADIOGRAPHIC EXAMINATION OF WELDED JOINTS. ACCEPTANCE LEVELS.
Non-destructive testing of welds. Acceptance levels for radiographic testing. Aluminium and its alloys
Cheese — Determination of propionic acid level by chromatography — Part 1: Method by gas chromatography
