check

check, Total:186 items.

The international standard classification for "check" includes: Measurement of force, weight and pressure , Fuel systems , Geology. Meteorology. Hydrology , Hydraulic energy engineering , Hydraulic construction , Vibrations, shock and vibration measurements , Character sets and information coding , Balancing and balancing machines , Protection against excessive pressure , General standards related to shipbuilding and marine structures , Non-destructive testing of metals , Non-destructive testing , Air transport .

The Chinese standard classification for "check" includes: Temperature and pressure instrument , Fuel oil heating system , Power capacitor , Hydrology and water conservancy instrument , Flow capacity and material level instrument , Mechanical vibration, impact equipment and dynamic balancing machine , Water conservancy and water power engineering in general , Code, character set and character recognition , Engineering investigation and geotechnical engineering in general , Valve , Ocean platforms , Metal nondestructive testing method , Basic standards and general methods , Main and auxiliary machines for vessel in general , Geophysical search equipment , Air traffic control .

Professional Standard - Machinery

JB/T 6293-2006 Diesel engines-Testing of fuel injectors Hand-lever operated testing and setting apparatus
JB/T 599-2005 Pressure gauges tester
JB/T 6293-1992 Specifications for hand-operated fuel injector calibrator
JB/T 9752.3-2004 Turbochargers—Balance quality requirements and check methods of rotors
JB/T 9306-1999 Technical specification for transformer calibrator
JB/T 9752.3-2014 Turbochargers - Part 3: Balance Quality Requirements and Check Methods of Rotors
JB/T 8957-1999 Method for verifying accuracy of tan delta measurements applicable to capacitors

Professional Standard - Water Conservancy

SL 119-1995 Calibrating Methods of Rock Treaxial Testing Apparatus
SL 144.8-2008 calibration methods of water environmental detecting instrument and equipment calibration method of microwave heating system
SL 113-1995 Calibration method for photoelectric liquid-plastic tester
SL 404-2007 Calibrating code for burst testing instrument of geosynthetics
SL 111-1995 Calibration method for porous disc
SL 144.6-2008 calibration methods of water environmental detecting instrument and equipment calibration method of constant temperature water-bath
SL 121-2012 Calibrating methods of rock direct shear testing instrument
SL 111-2017 SL/T 111-2017 Code for calibration of porous plate
SL 405-2007 Calibrating code for normal permeability testing instrument of geotextiles
SL 597-2012 Calibration method for anchor dynamometer
SL/T 114-2014 Consolidation instrument calibration method
SL 115-1995 Calibration method for variable head (cosntant head) permeameter
SL 125-2017 Calibration Method of Cement Mortar moulds
SL 110-1995 Calibrating Methods of Soil Testing Instrument
SL 119-2012 Calibrating Methods of Rock Triaxial Testing Apparatus
SL 133-1995 Calibration method for concrete impevious apparatus
SL 414-2007 Calibration code for bitumen softening meter
SL 123-1995 Method for calibration of cement mortar flow tester
SL 118-1995 Calibration method for strain-controlled triaxial apparatus
SL 144.11-2008 calibration methods of water environmental detecting instrument and equipment calibration method of control-temperature furnace
SL 144.5-2008 calibration methods of water environmental detecting instrument and equipment calibration method of centrifuge
SL 406-2007 Calibrating code for planar permeability testing instrument of geotextiles
SL 112-1995 Calibration method for compaction test apparatus
SL/T 111-2017 Permeable board calibration method
SL 136-1995 Calibration method for concrete adiabatic temperature rise tester
SL 144.7-2008 calibration methods of water environmental detecting instrument and equipment calibration method of electric air blowing dryer
SL 114-2014 Code for calibration of oedometers
SL 124-1995 Ccalibration method for cement hydration heat (direct method) tester
SL/T 232-1999 Verification method of dynamic liquid discharge and flow velocity facilities
SL 144.2-2008 calibration methods of water environmental detecting instrument and equipment calibration method of multi-parameter water quality sonde
SL 137-1995 Calibration method for length meter
SL/T 233-1999 Verification method of common instrument in hydraulic and river model
SL 114-1995 Calibration method for lever consolidometer
SL 144.9-2008 calibration methods of water environmental detecting instrument and equipment calibration method of accelerated solvent extractor(ase)
SL 135-1995 Calibration method for dynamic elastic concrete modulus tester
SL/T 115-2014 Penetration meter calibration method
SL 132-1995 Calibration method for vapor-pressure type air entrainment tester
SL 116-1995 Calibration method for strain-controlled direct shear apparatus
SL 144.4-2008 calibration methods of water environmental detecting instrument and equipment calibration method of electro-thermal incubator
SL 112-2017 SL/T 112-2017 Code for calibration of compaction apparatus
SL 411-2007 Calibrating code for mechanical sieve shaker
SL 131-1995 Method for calibration of apparatus for concrete slump test
SL 407-2007 Calibrating code for permeability testing instrument of geomembranes
SL 117-1995 Calibration method for strain-controlled unconfined compression apparatus
SL 122-2012 Calibrating methods of measurement instrument of rock deformation
SL 127-2017 Test method for volume weight cylinder
SL 120-1995 Calibrating Methods of Sonic Parameter Measuring Apparatus
SL 123-2012 Calibration methods for fluidity tester of cement mortar
SL 403-2007 Calibrating code for comprehensive testing apparatus of geosynthetis
SL 120-2012 Calibrating Methods of Sonic Parameter Measuring Apparatus
SL 412-2007 Calibrating code for bitumen penetrometers
SL 116-2012 Calibration method for strain-controlled direct shear apparatus
SL 413-2007 Calibration code for bitumen ductility meter
SL/T 112-2017 Compaction instrument calibration method
SL 144.1-2008 calibration methods of water environmental detecting instrument and equipment calibration method of biology microscopes
SL/T 127-2017 Capacity cylinder calibration method
SL 115-2014 Permeameter Calibration Method
SL 121-1995 Calibrating Methods of Rock Direct Shear Testing Instrument
SL 144.3-2008 calibration methods of water environmental detecting instrument and equipment calibration method of biochemical insubator
SL 144.10-2008 calibration methods of water environmental detecting instrument and equipment calibration method of solid-phase extractor(spe)
SL 122-1995 Calibrating Methods of Measurement Instrument of Rock
SL 598-2012 Calibration method for measurement system of intermittentconcrete mixing plant
SL 410-2007 Calibrating code for dynamic perforation test(con-drop test)instrument

Professional Standard - Traffic

JT/T 131-1993 Hydraulic check-out stand of connecting rod

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

GB/T 11259-1999 STANDARD practice for fabrication and control of steel reference blocks used in ultrasonic inspection
GB/T 40961-2021 Calibration methods of rock triaxial testing apparatus
GB/T 33112-2016 Verification method of instruments devoted to geotechnical engineering prototype monitoring
GB/T 17710-1999 Data processing--Check character systems
GB/T 32291-2015 Offline inspection and evaluation of high and super-high pressure safety valves
GB/T 34363-2017 Non-destructive testing--Test method for fabricating and checking aluminum alloy ultrasonic standard reference blocks
GB/T 4201-1984 Method of verification for universal horizontal balancing machines
GB/T 37817-2019 Risk based verification of offshore structures
GB/T 17710-2008 Information technology-Security technique - Check character systems
GB/T 30952-2014 Calibration method of water level gauge test equipment
GB/T 7662-1987 Method of verification for vertical balancing machines

Anhui Provincial Standard of the People's Republic of China

DB34/T 2286-2022 Safety valve on-line calibration procedure
DB34/T 4532-2023 Evaluation Guidelines for Safety Valve Calibration Unit Management System
DB34/T 2286-2015 Safety valve on-line calibration procedure

National Metrological Technical Specifications of the People's Republic of China

JJF 2259-2025 Calibration Specification for Magnetometer Verification Equipment
JJF 1472-2014 Calibration Specification for Process Calibrators
JJF(机械) 062-2009 Calibration specification of DJS timing calibrator
JJF 1284-2011 Calibration Specification of Calibrators for Electrical Meters
JJF 1995-2022 Calibration Specification for Electronic Instrument Transformers Test Set
JJF 2228-2025 Calibration Specification for Withstanding Voltage Tester Calibrators

Xizang Provincial Standard of the People's Republic of China

DB54/T 0300-2023 Elevator speed limiter calibration specifications

Guangdong Provincial Standard of the People's Republic of China

DB4401/T 118-2021 Guidelines for On-Line Calibration of Safety Valves
DB44/T 1392-2014 Safety valve automatic calibration method

Professional Standard-Ships

CB* 3209-1983 Method on Calibration of Hydraulic Dynamometer

Henan Provincial Standard of the People's Republic of China

DB41/T 913-2014 AC and DC indicating instrument calibration device
DB4109/T 057-2024 Safety valve inspection and calibration requirements
DB41/T 1883-2019 On-line calibration rules for safety valves
DB41/T 1445-2017 clock calibrator
DB4112/T 310-2022 Verification specification for calibration capability of elevator speed limiter

Guizhou Provincial Standard of the People's Republic of China

DB52/T 1550-2020 Calibration procedure for elevator speed limiter

Hubei Provincial Standard of the People's Republic of China

DB42/T 1381-2018 General technical requirements for calibrating device of high-voltage electric energy meter
DB42/T 1943-2022 Calibration specification for in-use elevator speed limiter

Chongqing Provincial Standard of the People's Republic of China

DB50/T 1739-2025 Safety valve online calibration operating procedures

National Metrological Verification Regulations of the People's Republic of China

JJG(机械) 77-1992 DSJ type timing checker verification regulations
JJG 779-1992 Cheker of Speed And Mr lege Messr For Cars
JJG 1079-2013 Comprehensive Calibrators for Test Equipment of Railway Track Signal
JJG(电子) 02003-1988 Trial Verification Regulations for DO30-C Digital Three-purpose Meter Calibrator
JJG 1196-2023 DC Instrument Transformers Test Set
JJG(机械) 20-1990 Verification Regulations for Calibration Device of WJM-1 Surface Thermometer
JJG(民航) 043-1997 Verification Regulation of KПA-TПP1T Oil Gauge Tester

Group Standards of the People's Republic of China

T/CSES 68-2022 Technical guidelines for verification of water quality criteria for freshwater organism protection
T/CSES 12-2020 Technical guidelines for validation of sediment quality criteria
T/SMA 0010-2020 SF6 Gas Density Relay Field Calibration Regulations
T/CSES 14-2020 Technical guidelines for in-situ evaluation of aquatic ecological criteria
T/SSM 002-2019 On-site Calibrator for Alternating-current Electric Energy Meter
T/CSES 49-2022 Technical guidelines for verification of water quality criteria for the protection of human health

Inner Mongolia Provincial Standard of the People's Republic of China

DB15/T 1019-2016 On-site calibration procedure for elevator speed limiter
DB15/T 1503-2018 Application guidelines for online calibration of safety valves

Hebei Provincial Standard of the People's Republic of China

DB13/T 5177-2020 Specifications for online calibration of elevator speed limiter
DB13/T 1442-2011 Inspection and Calibration Method of Crane Overspeed Protection Device

Professional Standard - Geology

DZ 0023-1991 General technical conditions for gradienter calibration board

Jilin Provincial Standard of the People's Republic of China

DB22/T 3591-2023 Meteorological warning information file verification specifications

Professional Standard - Electron

SJ/Z 9092-1987 Data processing - Character verification system

Professional Standard - Civil Aviation

MH/T 4032-2011 Technical requirement of civil aviation flight inspection. Radar
MH/T 4033-2011 Technical requirement of civil aviation flight inspection. ATC automation system
MH 2003-2000 Flight inspection rule

Professional Standard - Coal

MT 59-1981 AJH type oxygen breathing apparatus calibrator

Professional Standard - Energy

NB/T 11568.36-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 36: Load test equipment
NB/T 11568.19-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 19: Vibration triaxial apparatus
NB/T 11568.33-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 33: Static penetration instrument
NB/T 11568.12-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 12: Dilatometer
NB/T 11568.23-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 23: Coarse-grained soil relative density instrument
NB/T 11568.6-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 6: Electric heating blast drying oven
NB/T 11568.40-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 40: Rock shear test equipment
NB/T 11568.21-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 21: Repose angle measuring instrument
NB/T 11568.9-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 9: Permeable panels
NB/T 11568.30-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 30: In-situ permeability tester
NB/T 11568.22-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 22: Siphon tube
NB/T 11568.4-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 4: Density meter
NB/T 11568.26-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 26: Coarse-grained soil consolidation instrument
NB/T 11568.35-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 35: Pressure gauge
NB/T 11568.28-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 28: Direct shear apparatus for coarse-grained soils
NB/T 11568.27-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 27: Triaxial apparatus for coarse-grained soils
NB/T 11568.2-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 2: Pycnometer
NB/T 11568.20-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 20: Resonance column tester
NB/T 11568.38-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 38: Rock direct shear tester
NB/T 11568.37-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 37: Rock triaxial testing machine
NB/T 11568.1-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 1: General
DL/T 1258-2024 General Technical Conditions for Mutual Inductor Calibrator
NB/T 11568.25-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 25: Coarse-grained soil permeameter
NB/T 11568.18-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 18: Triaxial instrument
NB/T 11568.16-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 16: Oedometer
NB/T 11568.3-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 3: Test sieves
NB/T 11568.24-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 24: Coarse-grained soil compaction instrument
NB/T 11568.31-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 31: Cross-plate shear apparatus
NB/T 11568.29-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 29: In-situ density tester
NB/T 11568.13-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 13: Shrinkage instrument
NB/T 11568.34-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 34: Dynamic penetration instrument
NB/T 11568.8-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 8: Disc liquid limit instrument
NB/T 11568.5-2024 Calibration procedures for geotechnical testing equipment for hydropower projects Part 5: Ring cutter
NB/T 11568.32-2024 Calibration procedures for geotechnical testing instruments and equipment for hydropower projects Part 32: Standard penetrometer

Shanxi Provincial Standard of the People's Republic of China

DB14/T 2134-2020 Operating Procedures for Elevator Speed Governor Action Speed Calibration

Professional Standard - Energy and Power Planning

DL/T 2768-2024 Technical regulations for on-site verification of current carrying capacity of overhead transmission lines
DL/T 259-2023 Calibration code for SF6 gas density relay
DL/T 1394-2014 Technical Requirement of Electronic Current and Voltage Transformer Error Test Sets
DL/T 259-2012 Calibration Regulation for SF6 Gas Density Monitor

Professional Standard - Petroleum

SY/T 6406-1999 Maintenance and inspection for magnetic single - shot & multi - shot survey instruments
SY/T 5693-1995 Technical Regulations for Maintenance and Calibration of Carbon-Oxygen Ratio Spectrum Logging Tool

Military Standard of the People's Republic of China-General Armament Department

GJB 7296-2011 Parameters and algorithm of low density parity check code for military application
GJB 9350-2018 Technical requirements for low-density parity check coding for relay satellite systems

Fujian Provincial Standard of the People's Republic of China

DB35/T 1688-2017 Safety technical specification for on-line calibration of safety valves for flammable and explosive media

Beijing Provincial Standard of the People's Republic of China

DB11/T 1468.2-2017 Specifications for Intelligent Metering Facilities for Agricultural Mechanized Wells Part 2: Field Calibration

Taiwan Provincial Standard of the People's Republic of China

CNS 258-1952 Ring Gauge for Reamer

CN-DB 1

DB1508/T 147-2023 Automatic flow measurement data verification specifications

German Institute for Standardization

DIN 16527-1:1993 Printing technology; control patch, control image, control mark; terms

British Standards Institution (BSI)

BS ISO TR 7066-1:1997 Assessment of uncertainty in calibration and use of flow measurement devices - Linear calibration relationships

Standard Association of Australia （SAA）

AS 2710:1984 Screw gauges - Verification

Japanese Industrial Standards Committee (JISC)

JIS C 1515:1991 Sound calibrators
JIS C 60364-6-61:2006 Electrical installations of buildings -- Part 6-61: Verification -- Initial verification

Defense Logistics Agency

DLA MIL-M-38510/19 A VALID NOTICE 1-2010 Microcircuits, Digital TTL, Parity Generators/Checkers, Monolithic Silicon
DLA SMD-5962-86077 REV D-2011 MICROCIRCUIT, DIGITAL, HIGH-SPEED CMOS, 9-BIT ODD/EVEN PARITY GENERATOR/CHECKER, MONOLITHIC SILICON

U.S. Air Force

AIR FORCE A-A-59419 A-2005 CALIBRATOR, THERMOMETER

Association Francaise de Normalisation

NF V03-915:1987 Oilseeds. Check of the calibration of moisture meters.

Swedish Institute for Standards

SS 14500:1987 Data security - Check Digits

Australian/New Zealand Standard (AU-AS/NZS)

AS/NZS 3019:2007