The standard curve must cross zero

The standard curve must cross zero, Total:49 items.

The international standard classification for "The standard curve must cross zero" includes: Noise with respect to human beings .

The Chinese standard classification for "The standard curve must cross zero" includes: Acoustic Measurement .

Professional Standard - Military and Civilian Products

WJ 217-1994 Armored Vehicle Standard Parts Wire Signs

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

AASHTO - American Association of State Highway and Transportation Officials

T 272-2010 Standard Method of Test for Family of Curves—One Point Method
T 272-2004 Standard Method of Test for Family of Curves - One-Point Method
T 272-2015 Standard Method of Test for Family of Curves-One Point Method
T 272-1986 Standard Method of Test for Family of Curves - One-Point Method (HM-22; PART IIB)

Spanish Association for Standardization (UNE)

UNE 22-520-1986 The purpose of this standard is to determine the services, tests and defined constructive characteristics that toolkits must comply with.

The American Road & Transportation Builders Association

AASHTO T 272-2015 Standard Method of Test for Family of Curves-One Point Method
AASHTO T 272-2010 Standard Method of Test for Family of Curves-One Point Method
AASHTO T 272-1986 Standard Method of Test for Family of Curves - One-Point Method HM-22; PART IIB R(2000)
AASHTO R 75-2016(R2020) Standard Practice for Developing a Family of Curves

SCC

AASHTO T 272-2004 Standard Method of Test for Family of Curves---One-Point Method
BS 2497-5:1988 Standard reference zero for the calibration of pure tone air conduction audiometers-Specification for a standard reference zero using an acoustic coupler complying with BS 4668

International Telecommunication Union (ITU)

ITU-T S.12-1989 Conditions That Must be Satisfied by Synchronous Systems Operating in Connection with Standard 50-Baud Teleprinter Circuits - Telegraph Services Terminal Equipment (Study Group IX) 2 pp
ITU-T S.12-1988 CONDITIONS THAT MUST BE SATISFIED BY SYNCHRONOUS SYSTEMS OPERATING IN CONNECTION WITH STANDARD 50-BAUD TELEPRINTER CIRCUITS
ITU-T S.12 FRENCH-1988 CONDITIONS THAT MUST BE SATISFIED BY SYNCHRONOUS SYSTEMS OPERATING IN CONNECTION WITH STANDARD 50-BAUD TELEPRINTER CIRCUITS
ITU-T S.12 SPANISH-1988 CONDITIONS THAT MUST BE SATISFIED BY SYNCHRONOUS SYSTEMS OPERATING IN CONNECTION WITH STANDARD 50-BAUD TELEPRINTER CIRCUITS

American Society for Testing and Materials (ASTM)

ASTM D87-07a Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM D87-09(2014) Standard Test Method for Melting Point of Petroleum Wax 40;Cooling Curve41;
ASTM D87-07 Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM D87-09 Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM D87-09(2018) Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
ASTM D6272-02(2008)e1 Standard Test Method for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials by Four-Point Bending
ASTM D6272-17e1 Standard Test Method for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials by Four-Point Bending
ASTM D6272-17 Standard Test Method for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials by Four-Point Bending
ASTM C598-93(1998) Standard Test Method for Annealing Point and Strain Point of Glass by Beam Bending
ASTM C5-79(1997) Standard Specification for Quicklime for Structural Purposes
ASTM C598-93(2019) Standard Test Method for Annealing Point and Strain Point of Glass by Beam Bending
ASTM C5-03(2009) Standard Specification for Quicklime for Structural Purposes
ASTM D2493/D2493M-09 Standard Viscosity-Temperature Chart for Asphalts
ASTM D5023-23 Standard Test Method for Plastics: Dynamic Mechanical Properties: In Flexure (Three-Point Bending)
ASTM D5023-07 Standard Test Method for Plastics: Dynamic Mechanical Properties: In Flexure (Three-Point Bending)
ASTM D5023-01 Standard Test Method for Measuring the Dynamic Mechanical Properties: In Flexure (Three-Point Bending)
ASTM E561-21 Standard Test Method for K R Curve Determination
ASTM E561-20 Standard Test Method for K R Curve Determination
ASTM E561-19e1 Standard Test Method for K R Curve Determination

American National Standards Institute （ANSI)

ANSI/IEEE C37.112:1996 Standard Inverse-Time Characteristic for Overcurrent Relays

IX-UIC

UIC OR 430-1-2012 Conditions with which wagons must comply in order to be accepted for transit between standard gauge railways and the Spanish and Portuguese broad gauge railways

North Atlantic Treaty Organization Standards Agency

STANAG 4197-1984 MODULATION AND CODING CHARACTERISTICS THAT MUST BE COMMON TO ASSURE INTER-OPERABILITY OF 2400 BPS LINEAR PREDICTIVE ENCODED DIGITAL SPEECH TRANSMITTED OVER HF RADIO FACILITIES

German Institute for Standardization

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

RU-GOST R

GOST 9735-1987 Profile grinders. Standards of accuracy

International Organization for Standardization (ISO)

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

British Standards Institution (BSI)

BS ISO 226:2003 Acoustics - Normal equal-loudness-level contours

Association Francaise de Normalisation

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

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

US-CFR-file

CFR 33-148.735-2013 Navigation and navigable waters. Part148:Deepwater ports: general. Section148.735:What are other critical criteria that must be evaluated?

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