focus

focus, Total:21 items.

The international standard classification for "focus" includes: Integrated circuits. Microelectronics , Lamp caps and holders , Optical measuring instruments , Acoustics measurements and noise abatement in general , Acoustics and acoustic measurements , Radiographic equipment , Extraction and processing of petroleum and natural gas , Non-destructive testing .

The Chinese standard classification for "focus" includes: Semiconductor integrated circuit , Lamp accessories , Optical testing instrument , Acoustic Measurement , Medical ultrasound, laser, high-frequency instrument and equipment , Petroleum development , Basic standards and general methods .

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General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

• GB/T 19890-2005 Acoustics-High intensity focused ultrasound(HIFU)measurements of acoustic power and field characteristics
• GB/T 19148.3-2009 Types and dimensions of lampholders—Part 3:Prefocus lampholders
• GB/T 17865-1999 Specification for measuring depth of focus and best focus
• GB/T 20249-2006 Acoustics - Definitions and measurement methods for the transmitted fields of focusing ultrasonic transducers
• GB/T 33252-2016 Nanotechnology-Performance testing for laser confocal microscope Raman spectrometers
• GB/T 1406.3-2008 Types and dimensions of lamp caps - Part 3：Prefocus caps
• GB/T 6998-2002 Gauges of prefocus caps
• GB/T 1483.3-2008 Gauges for lamp caps and lampholders - Part 3: Gauges for prefocus caps and lampholders

Professional Standard - Medicine

• YY/T 1154-2009 Laser confocal scanner
• YY 0592-2016 High intensity focused ultrasound therapy system
• YY 0592-2005 High intensity focused ultrasound therapy system

Professional Standard - Petroleum

• SY/T 5880.3-1994 Microspherical focused logging tool calibration rules
• SY/T 6786-2010 The Calibration for Microspherically Focused Logging Tool

Group Standards of the People's Republic of China

• T/ZGCMITT 005-2022 Clinical management and application requirements of focused ultrasound ablation

国家市场监督管理总局、中国国家标准化管理委员会

• GB/T 40324-2021 Non-destructive testing—Testing method for large diameter round bars by focused ultrasound
• GB/T 1406.3-2021 Types and dimensions of lamp caps—Part 3：Prefocus caps

国家能源局

• SY/T 7410.2-2020 3D pore structure characterization of rocks-Part 2: FIB-SEM method

CZ-CSN

• CSN 36 0346-1973 Prefocus Caps

British Standards Institution (BSI)

• 17/30355518 DC BS EN 63045. Ultrasonics. Non-focusing and weakly focusing pressure pulse sources. Characteristics of fields

Society of Motion Picture and Television Engineers (SMPTE)

• SMPTE RP 185-2004 Classification of Projection Depth of Focus

German Institute for Standardization

• DIN 58161-4:1971-03 Testing of optical components; focussing screens

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