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Database: 365,228(8 Aug 2026)

UV photometer absorbance is negative

UV photometer absorbance is negative, Total:106 items.

The international standard classification for "UV photometer absorbance is negative" includes: Optics and optical measurements , Analytical chemistry in general , Waxes, bituminous materials and other petroleum products , Animal and vegetable fats and oils , Alcohols. Ethers , Chemical reagents , Workplace atmospheres , Cadmium, cobalt and their alloys , Petroleum products in general , Biology. Botany. Zoology .

The Chinese standard classification for "UV photometer absorbance is negative" includes: Cosmetics , Electron optics and other physical optics instrument , Chemical Measurement , Electrochemical, thermochemistry and optical profile type analyzer , Petroleum wax , Grease and oil processing and products , Basic organic chemicals , Chemical reagent in general , Labor sanitation , Rare metals and their alloys analysis method , Petroleum products in general .


Professional Standard - Light Industry

  • QB/T 2334-1997 Method for the Qualitative Determination of Ultraviolet Absorbents in Cosmetics - Ultraviolet Spectrophotometry

Professional Standard - Machinery

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

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

  • GB/T 22500-2008 Animal and vegetable fats and oils—Determination of ultraviolet absorbance expressed as specific UV extinction
  • GB/T 16077-1995 Workplace air―Determination of phosgene―Ultraviolet spectrophotometric method
  • GB/T 21187-2007 Atomic absorption spectrophotometer
  • GB/T 2592.8-1981 Thallium;Determination of indium content;Crystal violet extraction photometric method
  • GB/T 26813-2011 Double beam UV/VIS spectrophotometer
  • GB/T 32737-2016 Determination of nitrate nitrogen in soil—Ultraviolet spectrophotometry method
  • GB/T 34796-2017(英文版) Quantification and purity analysis of nucleic acid concentration in solution—Ultraviolet spectrophotometry
  • GB/T 11081-2005 Standard test method for ultraviolet adsorption of white oils
  • GB/T 9721-2006 Chemical reagent - General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
  • GB/T 14571.4-2008 glycol for industrial use - Determination of ultraviolet transmittance - Ultraviolet spectrophotometric method
  • GB/T 9721-1988 Chemical reagent-General rules for the molecular absorption spectrophotometry(ultraviolet and visible)
  • GB 9721-1988 Molecular Absorption Spectrophotometry of Chemical Reagents General Rules (Ultraviolet and Visible Parts)
  • GB/T 11081-1989 White oils-Determination of ultraviolet absorption
  • GB/T 26798-2011 Single beam UV/VIS spectrophotometer

Group Standards of the People's Republic of China

Professional Standard - Petrochemical Industry

  • SH/T 0406-1992 Determination method for vaseline ultraviolet absorbance
  • SH/T 0662-1998 Mineral oil - Determination of ultraviolet absorbance

Professional Standard - Energy

  • NB/SH/T 0415-2013 Determination Method for Ultraviolet Absorbance and Absorptivity of Petroleum Products

Professional Standard - Agriculture

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

  • JJF 1641-2017 Program of Pattern Evaluation of Ultraviolet—Visible Spectrophotometers

Professional Standard - Water Conservancy

  • SL 93.2-1994 Determination of oil and grease (Vltraviolet spectrophotometric method)
  • SL 84-1994 Determination of nitrogen(nitrate) (Ultraviolet spectrophtometric method)

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

Shandong Provincial Standard of the People's Republic of China

  • DB37/T 4149-2020 Determination of water quality UV254 by ultraviolet spectrophotometry

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

  • GB/T 34796-2017 Quantification and purity analysis of nucleic acid concentration in solution-Ultraviolet spectrophotometry

Professional Standard - Non-ferrous Metal

  • YS/T 569.8-2006 Thallium - Determination of indium content - Crystal violet extraction photometric method

国家市场监督管理总局、中国国家标准化管理委员会

  • GB/T 14571.4-2022 Test method of ethylene glycol for industrial use—Part 4:Determination of ultraviolet transmittance—Ultraviolet spectrophotometric method

NO-SN

SCC

  • NS 9462:2006 Water quality — Determination of UV-absorbance
  • UNE 84124:2000 Cosmetic raw materials. Determination of UV-filters by spectrophotometric absorbance.
  • DANSK DS/EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
  • DANSK DS/EN ISO 3656/A1:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
  • AWWA WQTC58864 The Search for the Origins of Specific UV Absorbance
  • 10/30197374 DC BS ISO 3656. Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction
  • NS-EN ISO 3656:2002 Animal and vegetable fats and oils — Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2002)
  • UNE 84170:1983 OIL OF LEMON. ULTRA-VIOLET SPECTROPHOTO METRIC ANALYSIS
  • NS-EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
  • BS EN ISO 3656:2002 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction
  • UNE-EN ISO 3656:2002 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction. (ISO 3656:2002)
  • AATCC EP11-2016 Spectrophotometer UV Energy Calibration Procedure for Optically Brightened Textiles
  • AENOR UNE-EN ISO 3656:2011 Oils and fats of animal and vegetable origin. Determination of ultraviolet absorbance expressed as specific UV extinction. (ISO 3656:2011)
  • AWWA WQTC64141 Comparison between the UV Action Spectrum of Bacillus subtilis Spores and the Standard DNA Absorbance Spectrum
  • DIN EN ISO 3656 E:2010 Draft Document - Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO/DIS 3656:2009); German version prEN ISO 3656:2009

GSO

  • GSO ISO 3656:2015 Animal and vegetable fats and oils -- Determination of ultraviolet absorbance expressed as specific UV extinction
  • BH GSO ISO 3656:2016 Animal and vegetable fats and oils -- Determination of ultraviolet absorbance expressed as specific UV extinction
  • GSO ASTM G130:2010 Standard Test Method for Calibration of Narrow- and Broad- Band Ultraviolet Radiometers Using a Spectroradiometer
  • BH GSO ASTM E958:2022 Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
  • GSO ASTM E958:2021 Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
  • OS GSO ISO 15593:2014 Environmental tobacco smoke -- Estimation of its contribution to respirable suspended particles -- Determination of particulate matter by ultraviolet absorbance and by fluorescence
  • BH GSO ISO 15593:2016 Environmental tobacco smoke -- Estimation of its contribution to respirable suspended particles -- Determination of particulate matter by ultraviolet absorbance and by fluorescence
  • GSO ISO 4735:2015 Oils of Citrus -- Determination of CD value by ultraviolet spectrometric analysis

AENOR

  • UNE 55047:1973 FATS. SPECTROPHOTOMETRIC MEASURE OF ABSORPTION IN THE ULTRAVIOLET AREA.
  • UNE 84124:2014 Cosmetic raw materials. Determination of UV-filters by spectrophotometric absorbance.
  • UNE-EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
  • UNE-EN ISO 3656:2011/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1 (ISO 3656:2011/Amd 1:2017)

German Institute for Standardization

  • DIN EN ISO 3656:2017-08 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011 + Amd 1:2017); German version EN ISO 3656:2011 + A1:2017

Korean Agency for Technology and Standards (KATS)

Danish Standards Foundation

  • DS/EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction

DIN

  • DIN EN ISO 3656:2002 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2002)

RO-ASRO

American Society for Testing and Materials (ASTM)

  • ASTM E958-13(2021) Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
  • ASTM E958-93(2005) Standard Practice for Measuring Practical Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
  • ASTM E958-93(1999) Standard Practice for Measuring Practical Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
  • ASTM E925-83(1994)e1 Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Slit Width does not Exceed 2 nm
  • ASTM E925-09 Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Slit Width does not Exceed 2 nm
  • ASTM E925-02 Standard Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Slit Width does not Exceed 2 nm

Japanese Industrial Standards Committee (JISC)

British Standards Institution (BSI)

  • BS EN ISO 3656:2011+A1:2017 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction

Association Francaise de Normalisation

  • NF EN ISO 3656:2011 Fatty substances of animal and vegetable origin - Determination of ultraviolet absorbance, expressed in the form of specific extinction in ultraviolet light
  • NF T60-223*NF EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction.
  • NF T60-223/A1*NF EN ISO 3656/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1
  • NF T01-035:1979 Molecular absorption spectrophotometry. Spectrophotometers and photometers. Record card. Standard layout.

Lithuanian Standards Office

  • LST EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)

International Organization for Standardization (ISO)

  • ISO 3656:2011 Animal and vegetable fats and oils. Determination of ultraviolet absorbance expressed as specific UV extinction
  • ISO 3656:2011/Amd 1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction; Amendment 1

European Committee for Standardization (CEN)

  • EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011)
  • EN ISO 3656:2011/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1 (ISO 3656:2011/Amd 1:2017)

CEN - European Committee for Standardization

  • EN ISO 3656:2002 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction

PL-PKN

  • PN Z04200-02-1988 Air purity protection ests for oxalic acid etermination of oxalic acid by ltraviolet absorption spectrophotometry
  • PN Z04171-02-1986 Air purity protection ests for picric acid etermination of picric acid n work places by UV pectrophotometry absorption
  • PN P04990-1989 Methods of chemical tests Knitted medical articles Determination of ultraviolet radiation absorbance

Standard Association of Australia (SAA)

  • ISO 3656:2011/Amd.1:2017 Animal and vegetable fats and oils — Determination of ultraviolet absorbance expressed as specific UV extinction AMENDMENT 1

IN-BIS