Five-level standard curve

Five-level standard curve, Total:25 items.

The international standard classification for "Five-level standard curve" includes: Noise with respect to human beings , Optical measuring instruments .

The Chinese standard classification for "Five-level standard curve" includes: Acoustic Measurement , Optical metrological instrument .

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

• GB/T 4963-2007 Acoustics—Normal equal-loudness-level contours

未注明发布机构

• DIN ISO 226 E:2001-11 Acoustics - Normal equal-loudness-level contours

Professional Standard - Machinery

• JB/T 9345-1999 One meter matallic linearrule Grade

Yunnan Provincial Standard of the People's Republic of China

• DB5306/T 87-2022 Big Five Star Loquat Fresh Fruit Grading Standard

Korean Agency for Technology and Standards (KATS)

• KS I ISO 226:2014 Acoustics — Normal equal-loudness level contours
• KS I ISO 226:2003 Acoustics-Normal equal-loudness level contours

International Organization for Standardization (ISO)

• ISO 226:2003 Acoustics - Normal equal-loudness-level contours
• ISO 226:1987 Acoustics; Normal equal-loudness level contours
• ISO 226:2023 Acoustics — Normal equal-loudness-level contours

SCC

• AS 1469:1973 Criteria curves for rating noise and establishing acoustic environment
• AS 1469C:1973 Noise rating curves
• AASHTO R 75-2016(2020) Standard Practice for Developing a Family of Curves

American National Standards Institute （ANSI)

• ANSI/ASTM D845:1977 Standard Specification for FIVE-DEGREE XYLENE

British Standards Institution (BSI)

• BS ISO 226:2003 Acoustics - Normal equal-loudness-level contours
• BS EN IEC 61853-4:2018 Photovoltaic (PV) module performance testing and energy rating - Standard reference climatic profiles

Association Francaise de Normalisation

• NF S30-003*NF ISO 226:2004 Acoustics - Normal equal-loudness-level contours

RU-GOST R

• GOST 9735-1987 Profile grinders. Standards of accuracy

RO-ASRO

• STAS 6901-1978 Psycho-physiological acou stics STANDARD CURVES OF EQUAL LOUDNESS LEVEL AND RELATIONS BETWEEN SOUND PRESSURE LEVELS

Underwriters Laboratories (UL)

• UL 1773-2011 UL Standard for Safety Termination Boxes (Fifth Edition)

American Society for Testing and Materials (ASTM)

• ASTM D2493/D2493M-09 Standard Viscosity-Temperature Chart for Asphalts
• ASTM E561-21 Standard Test Method for K R Curve Determination
• ASTM E561-20 Standard Test Method for K R Curve Determination
• ASTM E561-19 Standard Test Method for K R Curve Determination

The American Road & Transportation Builders Association

• AASHTO R 75-2016(R2020) Standard Practice for Developing a Family of Curves

AASHTO - American Association of State Highway and Transportation Officials

• T 272-2010 Standard Method of Test for Family of Curves—One Point Method

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