Sign In |Help & Support
ALL SECTORS
  • ALL SECTORS
  • GB(National Standard)
  • CB(Shipping)
  • CECS(Engineering Construction)
  • CJ(Urban Construction)
  • CY(News and Publication)
  • DB(Provincial Standard)
  • DL(Electricity & Power)
  • DZ(Geology & Mineralogy)
  • FZ(Spinning & Textile)
  • GA(Public Security)
  • HB(Aviation)
  • HG(Chemical Industry)
  • HJ(Environmental Protection)
  • JB(Machinery)
  • JC(Building Materials)
  • JG(Building & Construction)
  • JJ(Metering)
  • JT(Highway & Transportation)
  • LY(Forestry)
  • MT(Coal)
  • NB(Energy)
  • NY(Agriculture)
  • QB(Light Industry)
  • QC(Automobile & Vehicle)
  • QJ(Aerospace)
  • SH(Petrochemical)
  • SJ(Electronics)
  • SL(Water Resources)
  • SN(Commodity Inspection)
  • SY(Oil & Gas)
  • TB(Railway & Train)
  • YB(Ferrous Metallurgy)
  • YC(Tobacco)
  • YD(Telecommunication)
  • YY(Medical Device)
Database: 365,228(8 Aug 2026)

c/n ratio detection

c/n ratio detection, Total:55 items.

The international standard classification for "c/n ratio detection" includes: Other standards related to road engineering .

The Chinese standard classification for "c/n ratio detection" includes: Operating equipment, instrument and meter .


Professional Standard - Traffic

Professional Standard - Machinery

  • JB/T 13469-2018 Non-destructive testing-Eddy current testing-Reference blocks

Professional Standard - Agriculture

未注明发布机构

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

  • JJG 112-2013 Metallic Rockwell Hardness Testing Machines(Scales A,B,C,D,E,F,G,H,K,N,T)
  • JJG 112-2003 Verification Regulation of Metallic Rockwell Hardness Testers(Scales A B C D E F G H K N T)
  • JJG 113-2003 Verification Regulation of Metallic Rockwell Hardness Reference Blocks (scales A,B,C,D,E,F,G,H,K,N,T)
  • JJG 113-2013 Metallic Rockwell Hardness Reference Blocks(Scales A,B,C,D,E,F,G,H,K,N,T)

Group Standards of the People's Republic of China

  • T/GXAS 722-2024 Indirect N-ELISA method for detection of antibody against avian metapneumovirus
  • T/CI 462-2024 Technical requirements for safety testing of N-type TOPCon batteries

Professional Standard - Chemical Industry

  • HG/T 5474~5478-2018 Reactive Yellow 175, CI Disperse Brown 27, CI Reactive Red 35, Liquid CI Direct Yellow 147 and N-Ethyl-N-cyanoethylaniline (2018)

Institute of Interconnecting and Packaging Electronic Circuits (IPC)

Ente Nazionale Italiano di Unificazione

  • UNI 11692:2017 Analysis of stable isotope ratios of H, C, N and S of cheese
  • EC 1-2020 UNI 11692:2017 Analysis of stable isotope ratios of H, C, N and S of cheese
  • UNI EN 10109-2:1996 Metallic materials. Hardness test. Verification of Rockwell hardness testing machines. (scales A, B, C, D, E, F, G, H, K, N, T).
  • UNI EN ISO 7393-2:2002 Water quality - Deternination of free chlorine and total chlorine - Colorimetric method using N,N-diethyl- 1,4-phenylenediamine for routine control purposes

German Institute for Standardization

  • DIN EN 18054:2024 Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
  • DIN EN 18054:2024-03 Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024 / Note: Date of issue 2024-02-16*CD-ROM
  • DIN EN 18054 E:2024-03 Draft Document - Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
  • DIN EN 18054 E:2024 Draft Document - Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
  • DIN CEN/TS 15407:2006 Solid recovered fuels - Method for the determination of carbon (C), hydrogen (H) and nitrogen (N) content; German version CEN/TS 15407:2006

Association Francaise de Normalisation

  • NF EN ISO 7393-2:2018 Water quality - Determination of free chlorine and total chlorine - Part 2: colorimetric method using N,N-diethylphenylene-1,4 diamine intended for routine checks
  • NF T90-038:1987 WATER ANALYSIS. DETERMINATION OF FREE CHLORINE AND TOTAL CHLORINE. COLORIMETRIC METHOD USING N,N-DIETHYLPHENYLENE-1,4 DIAMINE.
  • NF X34-220:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content.

Defense Logistics Agency

  • DLA A-A-55306-1997 NEEDLE, SAILMAKER'S [Superseded: DLA GGG-N-202 C CANC NOTICE 2, DLA GGG-N-202 C VALID NOTICE 1, DLA GGG-N-202 C, DLA GGG-N-202 B INT AMD 2, DLA GGG-N-202 B (1), DLA GGG-N-202 B]
  • DLA A-A-59503 B-2008 NITROGEN, TECHNICAL [Replaced: DLA BB-N-411 C CANC NOTICE 2, DLA BB-N-411C CANC NOTICE 1, DLA BB-N-411C, DLA BB-N-411B (1), DLA BB-N-411B, DLA BB-N-411A]
  • DLA A-A-59621-2000 NECKERCHIEF (ACETATE BLACK) [Superseded: NAVY MIL-N-87042 C, NAVY MIL-N-87042 B, NAVY MIL-N-87042 A (2), NAVY MIL-N-87042 A (1), NAVY MIL-N-87042 A, NAVY MIL-N-87042]

Belgian Standards Institute

  • NBN A 11-404-1982 Iron and steel metallurgical products. Trial machine for ROCKWELL hardness testing (Grades B, C, N and T)

British Standards Institution (BSI)

  • 24/30457296 DC BS EN 18054 Food authenticity. Determination of C and/or N isotope ratios in food by Elemental Analyser. Isotope Ratio Mass Spectrometry (EA-IRMS)
  • BS EN ISO 7393-2:2000 Water quality - Determination of free chlorine and total chlorine - Colorimetric method using N,N -diethyl-1 ,4-phenylenediamine for routine control purposes
  • BS EN ISO 7393-2:1986 Water quality. Determination of free chlorine and total chlorine. Colorimetric method using N,N-diethyl-1, 4-phenylenediamine for routine control purposes
  • BS EN 15407:2011 Solid recovered fuels. Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
  • DD CEN/TS 15407:2006 Solid recovered fuels — Method for the determination of carbon (C), hydrogen (H) and nitrogen (N) content

Society of Motion Picture and Television Engineers (SMPTE)

Magyar Szabványügyi Testület

United States Navy

  • NAVY MS3462 REV B-1975 TEST GAGE, MIL-C-26482 SERIES 2 (CLASS N), MIL-C-81703 SERIES 3 (CLASS N) AND MIL-C-0081511 SERIES 3 AND 4 (CLASS L) CONTACT RETENTION FEATURE
  • NAVY MS3462 REV B NOTICE 1-1996 TEST GAGE, MIL-C-26482 SERIES 2 (CLASS N), MIL-C-81703 SERIES 3 (CLASS N) AND MIL-C-0081511 SERIES 3 AND 4 (CLASS L) CONTACT RETENTION FEATURE

International Telecommunication Union (ITU)

  • INFORME BT.2018 SPANISH-1998 STUDY OF THE SYSTEM C GHOST CANCELLING REFERENCE SIGNAL FOR THE EVALUATION AND CORRECTION OF LINEAR DISTORTION IN THE TELEVISION CHAIN

Polski Komitet Normalizacyjny (PKN)

  • PN Z04177-02-1987 Air purity protection ests for 7V-phenyInaphtylamine etermination of JV-phenyl-2-naphtyl- mine at \vork places by colorimetric ethod

Society of Automotive Engineers (SAE)

Military Standards (MIL-STD)

Korean Agency for Technology and Standards (KATS)

  • KS M 1428-2004 Measuring method for specific gravity of media
  • KS I ISO 7393-2-2023 Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes
  • KS I ISO 7393-2-2007(2017) Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using n, n-diethyl-1, 4 phenylenediamine for routine control purposes

Aerospace Industries Association/ANSI Aerospace Standards

  • AIA/NAS NASM45938/6-2011 NUT, SELF-LOCKING, CLINCH, (SWAGE-CLINCHING, KNURLED SHANK, MINIATURE, 450 癋 OR 800 癋) Rev 1 [Superseded: DLA MIL-N-45938/6 C CANC NOTICE 1, DLA MIL-N-45938/6 C, DLA MIL-N-45938/6 B, DLA MIL-N-45938/6 A, DLA MIL-N-45938/6]

Netherlands Institute for Standardization

  • NEN 958-1971 Determination of density at 20 °C of milk with a density hydrometer (lactometer)

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

  • TCVN 6225-2-2012 Water quality.Determination of free chlorine and total chlorine.Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes

Kingdom of Bahrain Testing and Metrology Directorate

  • BH GSO ISO 7393-2:2016 Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes

Czech Standards Institute (UNMZ)