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)

All chemical instruments

All chemical instruments, Total:200 items.

The international standard classification for "All chemical instruments" includes: Education , Optical measuring instruments , Optics and optical measurements , Optical equipment , Geology. Meteorology. Hydrology .

The Chinese standard classification for "All chemical instruments" includes: Special instruments for teaching , Telescope, geodetic survey and aerial survey instrumentation , Optical instrument in general , Hydrology and water conservancy instrument .


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

  • GB/T 11826.2-2012 Current meter and flow meter—Part 2:Ultrasonic current meter
  • GB 21746-2008 Safety requirements for the educational equipment—General principles
  • GB/T 26328-2010 Optical interference filters for biochemical analyzer
  • GB 21749-2008 Safety requirements for the educational equipment - Vitreous equipment and attachments
  • GB/T 12085.20-2011 Optics and optical instruments—Environmental test methods—Part 20:Humid atmosphere containing sulfur dioxide or hydrogen sulfide
  • GB 21748-2008 Safety requirement for the educational equipment - Basic requirements for equipment and spare parts
  • GB/T 26596-2011 Optics and optical instruments—Geodetic and surveying instruments—Vocabulary

China National Accreditation Service for Conformity Assessment

Professional Standard - Military and Civilian Products

  • WJ 462-1995 Specification for copper and copper alloy oxide coatings for chemically coated optical instruments
  • WJ 966-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Dome Rod
  • WJ 989-1977 Investment casting mold components for optical instruments Investment casting mold supports for optical instruments
  • WJ 975-1977 Investment casting mold components for optical instruments Investment casting mold tail handles for optical instruments
  • WJ 970-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Knurled Handle
  • WJ 988-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Tie Rod
  • WJ 971-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Handle
  • WJ 1016-1994 Fixed level for optical instrument parts
  • WJ 977-1977 Investment casting mold components for optical instruments Investment casting mold positioning shaft for optical instruments
  • WJ 1022-1976 Standard parts for optical instruments Dryers for optical instruments (restricted standard)
  • WJ 1014-1994 Circular level for optical instrument parts
  • WJ 990-1977 Investment casting mold components for optical instruments Investment casting mold supports for optical instruments
  • WJ 983-1977 Optical Instruments Investment Casting Mold Components Optical Instruments Investment Casting Mold Gap Pads
  • WJ/Z 209-1986 Specifications for Electroless Nickel Plating on Aluminum and Aluminum Alloys for Optical Instruments
  • WJ 960-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Bending Pin
  • WJ 985-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Diamond Nut
  • WJ 1025-1976 Standard parts for optical instruments Dryers for optical instruments (restricted standard)
  • WJ 961-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Straight Guide Column
  • WJ 973-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Ring Handle
  • WJ 1026-1976 Standard parts for optical instruments Dryers for optical instruments (restricted standard)
  • WJ 1001-1994 Optical instrument parts pressure ring
  • WJ 976-1977 Investment casting mold components for optical instruments Investment casting mold parts for optical instruments
  • WJ 969-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Guide Sleeve
  • WJ 968-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Guide Sleeve
  • WJ/Z 210-1986 Specifications for black oxidation of stainless steel for optical instruments
  • WJ 991-1977 Optical Instruments Investment Casting Mold Components Optical Instruments Investment Casting Mold Cylindrical Pins
  • WJ 463-1995 Specification for aluminum and aluminum alloy anodic oxide coatings for optical instruments with electrochemical coatings
  • WJ 981-1977 Optical instrument investment casting mold parts Optical instrument investment casting mold edge block
  • WJ 986-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Eccentric Handle
  • WJ 1023-1976 Standard parts for optical instruments Dryers for optical instruments (restricted standard)
  • WJ 959-1977 Investment casting mold components for optical instruments Investment casting mold pins for optical instruments
  • WJ 963-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Flange Guide Post
  • WJ 982-1977 Optical Instruments Investment Casting Mold Components Optical Instruments Investment Casting Mold Rotary Axis
  • WJ 967-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Reset Lever
  • WJ 965-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Dome Rod
  • WJ 2186-1994 Optical instrument parts Night vision goggles
  • WJ 1024-1976 Standard parts for optical instruments Dryers for optical instruments (restricted standard)
  • WJ 958-1977 Investment casting mold components for optical instruments Investment casting mold pins for optical instruments
  • WJ 1011-1976 Standard parts for optical instruments Ball handles for optical instruments (limited to standard)
  • WJ 987-1977 Optical Instrument Investment Casting Mold Components Optical Instrument Investment Casting Mold Ear Pads
  • WJ 957-1977 Optical Instruments Investment Casting Mold Parts Optical Instruments Investment Casting Mold Clamps
  • WJ 956-1977 Optical Instruments Investment Casting Mold Parts Optical Instruments Investment Casting Mold Clamps

Professional Standard - Education

  • JY/T 0429-2011 Long-neck safety funnel for teaching glass instruments

Jiangsu Provincial Standard of the People's Republic of China

  • DB32/T 1321.4-2019 Specifications for the Construction of Safety Monitoring and Early Warning System for Major Hazardous Sources of Hazardous Chemicals Part 4: Sensor and Instrumentation Signal Safety Monitoring and Early Warning Subsystem

Taiwan Provincial Standard of the People's Republic of China

  • CNS 8861-1982 Method of Test for Glass Apparatus for Chemical Analysis

Professional Standard - Machinery

  • JB 5517-1991 Basic safety requirements for electrical protection of optical instruments
  • JB/T 5667-1991 Optics and optical instruments -- Geodetic instruments-vocabulary

Group Standards of the People's Republic of China

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

  • GJB 433-1988 Safety technical conditions for nuclear protection of artillery optical instruments

Korean Agency for Technology and Standards (KATS)

  • KS M 0014-2017(2022) Apparatus for chemical analysis
  • KS M 0124-2011 Technical terms for analytical chemistry(Analytical instrument part)
  • KS L 2303-2010 Glass apparatus for chemical analysis
  • KS L 2303-2025 Glass apparatus for chemical analysis
  • KS L 2303-2015 Glass apparatus for chemical analysis
  • KS L 2303-2020 Glass apparatus for chemical analysis
  • KS M 0124-2017 Technical terms for analytical chemistry(Analytical instrument part)
  • KS M 0124-2017(2022) Technical terms for analytical chemistry(Analytical instrument part)
  • KS P 1801-2024 Requirements for maintenance of chemical analysis equipments
  • KS L 7104-2002 Enamel apparatus for laboratory
  • KS B ISO 9849:2002 Optics and optical instruments-Geodetic instruments-Vocabulary
  • KS B ISO 10109-12-2023 Optics and optical instruments — Environmental requirements — Part 12: Conditions of transport for optical instruments
  • KS B ISO 10109-12-2006(2016) Optics and optical instruments — Environmental requirements —Part 12: Conditions of transport for optical instruments
  • KS B ISO 14135-1-2016 Optics and optical instruments-Specifications for telescopic sights-Part 1:General-purpose instruments
  • KS B ISO 14135-1-2016(2021) Optics and optical instruments-Specifications for telescopic sights-Part 1:General-purpose instruments
  • KS B ISO 10109-12-2006(2021) Optics and optical instruments — Environmental requirements —Part 12: Conditions of transport for optical instruments
  • KS B ISO 10109-12:2006 Optics and optical instruments - Environmental requirements - Part 12: Conditions of transport for optical instruments
  • KS B ISO 14135-2-2016 Optics and optical instruments-Specifications for telescopic sights-Part 2:High-performance instruments
  • KS L 2302-2012 Shape and dimension of glass apparatus for chemical analysis
  • KS L 2301-2020 Testing method of glass apparatus for chemical analysis
  • KS B ISO 14135-2-2016(2021) Optics and optical instruments-Specifications for telescopic sights-Part 2:High-performance instruments
  • KS B ISO 9849:2017 Optics and optical instruments-Geodetic instruments-Vocabulary
  • KS B ISO 9849-2022 Optics and optical instruments-Geodetic instruments-Vocabulary
  • KS L 2302-1987 Shape and dimension of glass apparatus for chemical analysis
  • KS B ISO 10109-7:2004 Optics and optical instruments - Environmental requirements - Part 7: Test requirements for optical measuring instruments
  • KS B ISO 10109-7-2024 Optics and optical instruments — Environmental requirements —Part 7: Test requirements for optical measuring instruments
  • KS B ISO 10109-7-2004(2019) Optics and optical instruments - Environmental requirements - Part 7: Test requirements for optical measuring instruments
  • KS B ISO 9849-2017(2022) Optics and optical instruments-Geodetic instruments-Vocabulary
  • KS B ISO 10109-7-2019 Optics and optical instruments-Environmental requirements-Part 7:Test requirements for optical measuring instruments
  • KS B ISO 9849-2017 Optics and optical instruments-Geodetic instruments-Vocabulary
  • KS B ISO 14135-1:2006 Optics and optical instruments-Specifications for telescopic sights-Part 1:General-purpose instruments
  • KS L 2301-1978 Testing method of glass apparatus for chemical analysis
  • KS B ISO 10109-11-2006(2016) Optics and optical instruments — Environmental requirements —Part 11: Optical instruments for outdoor conditions of use
  • KS B ISO 10109-7-2004(2024) Optics and optical instruments — Environmental requirements —Part 7: Test requirements for optical measuring instruments
  • KS B ISO 10109-11-2023 Optics and optical instruments — Environmental requirements — Part 11: Optical instruments for outdoor conditions of use
  • KS L 2301-2010 Testing method of glass apparatus for chemical analysis
  • KS L 2302-2017 Shape and dimension of glass apparatus for chemical analysis
  • KS B ISO 10109-11-2006(2021) Optics and optical instruments — Environmental requirements —Part 11: Optical instruments for outdoor conditions of use
  • KS B ISO 14135-1:2016 Optics and optical instruments - Specifications for telescopic sights - Part 1: General-purpose instruments
  • KS L 2301-2015 Testing method of glass apparatus for chemical analysis
  • KS B ISO 12857-1-2002(2022) Optics and optical instruments-Geodetic instruments-Field procedures for determining accuracy-Part 1:Levels
  • KS B ISO 14135-2:2006 Optics and optical instruments-Specifications for telescopic sights-Part 2:High-performance instruments
  • KS B ISO 12857-2-2022 Optics and optical instruments-Geodetic instruments-Field procedures for determining accuracy-Part 2:Theodolites
  • KS B ISO 12857-2-2002(2022) Optics and optical instruments - Geodetic instruments - Field procedures for determining accuracy - Part 2: Theodolites
  • KS B ISO 14135-2:2016 Optics and optical instruments - Specifications for telescopic sights - Part 2: High-performance instruments
  • KS B ISO 10109-11:2006 Optics and optical instruments - Environmental requirements - Part 11: Optical instruments for outdoor conditions of use

Magyar Szabványügyi Testület

British Standards Institution (BSI)

  • BS 1428-F1:1957 Microchemical apparatus. Filtration accessories.-Specification for filtration apparatus for microchemical analysis
  • BS 1428-E2:1954 Micro beakers micro chemical apparatus general accessory apparatus
  • BS ISO 17123-5:2018 Optics and optical instruments. Field procedures for testing geodetic and surveying instruments - Total stations
  • 11/30218527 DC BS ISO 17123-5. Optics and optical instruments. Field procedures for testing geodetic and surveying instruments. Part 5. Total stations
  • BS 1428-J1:1954 Micro-electrlytic apparatus micro chemical apparatus electrolytic accessories
  • BS 1428-D4:1963(2010) Specification for Capillary pipettes — Microchemical apparatus — Group D : Volumetric apparatus
  • BS 1428-H1:1960 Weighing vessels for microchemical analysis microchemical apparatus weighing accessories
  • BS 1428-H1:1952 Weighing vessels for microchemical analysis microchemical apparatus weighing accessories
  • BS ISO 17123-11:2025 Optics and optical instruments. Field procedures for testing geodetic and surveying instruments - GNSS instruments
  • BS 1428-D5:1955(2007) Specification for Syringe pattern micro - pipette — Microchemical apparatus — Group D : volumetric apparatus
  • BS 1428-D5:1955 Microchemical apparatus - Volumetric analysis - Specification for syringe pattern micro-pipette
  • BS EN ISO 8598-1:2014 Optics and optical instruments. Focimeters. General purpose instruments
  • BS 1428-C2:1954 Microchemical apparatus. Apparatus for the determination of organic groups.-Specification for acetyl group determination apparatus (Wiesenberger)
  • 09/30169936 DC BS EN ISO 8598-1. Optics and optical instruments. Focimeters. Part 1. General purpose instruments
  • 21/30366686 DC BS IEC 63143. Electroacoustics. Modular instrumentation for acoustic measurement
  • 22/30457844 DC BS EN 63143. Electroacoustics. Modular instrumentation for acoustical measurements - Part 1. Specifications
  • BS ISO 10109-12:2004 Optics and optical instruments - Environmental requirements - Conditions of transport for optical instruments
  • BS 1428-K1:1958 Vapourimetric molecular weight determination apparatus microchemical apparatus accessories for physical gravimetric methods
  • BS 1428-D4:1963 Microchemical apparatus. Volumetric analysis. Specification for capillary pipettes

Japanese Industrial Standards Committee (JISC)

Association Francaise de Normalisation

National Standardisation Body (ASRO)

German Institute for Standardization

  • DIN ISO 17123-5:2022-06 Optical and optical instrumentation - Field testing methods for geodetic and surveying instruments - Part 5: Total station (ISO 17123-5:2018)
  • DIN ISO 17123-5:2022 Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 5: Total stations (ISO 17123-5:2018)
  • DIN ISO 17123-5 E:2021-05 Optics and optical instrument testing - Field procedures for cadastral surveying and mapping instruments - Part 5: Total stations (ISO 17123-5:2018)
  • DIN ISO 17123-5:2021-05 Draft Document - Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 5: Total stations (ISO 17123-5:2018); Text in German and English
  • DIN EN ISO 8598-1:2015-01 Optics and optical instruments - Focimeters - Part 1: General purpose instruments (ISO 8598-1:2014); German version EN ISO 8598-1:2014
  • DIN ISO 10109-12:2005 Optics and optical instruments - Environmental requirements - Part 12: Conditions of transport for optical instruments (ISO 10109-12:2004)
  • DIN EN ISO 8598-1 E:2011-09 Optical and Optical Instruments Focal Length Meters Part 1: General Instruments (Draft)
  • DIN ISO 10109-6:2007 Optics and photonics - Environmental requirements - Part 6: Test requirements for medical optical instruments (ISO 10109-6:2005) English version of DIN ISO 10109-6:2007-02
  • DIN ISO 14135-1:2005 Optics and optical instruments - Specifications for telescopic sights - Part 1: General-purpose instruments (ISO 14135-1:2003)
  • DIN ISO 14135-2:2005 Optics and optical instruments - Specifications for telescopic sights - Part 2: High-performance instruments (ISO 14135-2:2003)
  • DIN ISO 10109-12:2005-08 Optics and optical instruments - Environmental requirements - Part 12: Conditions of transport for optical instruments (ISO 10109-12:2004)
  • DIN 18213 E:2021-03 Optics and optical instruments Field methods for testing geodetic and mapping instruments GNSS instruments
  • DIN ISO 17123-3:2019-01 Optics and optical instruments – Field procedures for testing geodetic and surveying instruments – Part 3: Theodolites (ISO 17123-3:2001)
  • DIN EN ISO 8598-1 E:2011 Draft Document - Optics and optical instruments - Focimeters - Part 1: General purpose instruments (ISO/DIS 8598-1.3:2011); German version prEN ISO 8598-1:2011

GCC Standardization Organization

  • GSO IEC 60335-2-108:2025 Household and similar electrical appliances - Safety - Part 2-108: Particular requirements for electrolysers
  • GSO ISO 8598-1:2016 Optics and optical instruments -- Focimeters -- Part 1: General purpose instruments
  • GSO ISO 17123-7:2007 Optics and optical instruments- Field procedures for testing geodetics and surveying instruments - Part 7: Optical plumbing instruments
  • BH GSO ISO 17123-7:2024 Optics and optical instruments- Field procedures for testing geodetics and surveying instruments - Part 7: Optical plumbing instruments
  • BH GSO ISO 17123-4:2024 Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 4: Electro-optical distance meters (EDM instruments)
  • BH GSO ISO 17123-2:2024 Optics and optical instruments- Field procedures for testing geodetic and surveying instruments- Part 2: Levels
  • GSO ISO 12858-2:2024 Optics and optical instruments — Ancillary devices for geodetic instruments — Part 2: Tripods
  • BH GSO ISO 12858-3:2024 Optics and optical instruments- Ancillary devices for geodetic instruments – Part 3: Tribrachs

Bureau of Indian Standards

  • IS/ISO 8598-1-2014 Optics and Optical Instruments —— Focimeters Part 1 General Purpose Instruments
  • IS 6226-1-1994 Recommendations for apparatus for chemicals analysis of metals,Part 1 Apparatus for determination of carbon by direct combustion
  • IS/ISO 9849-1991 Optics and Optical Instruments - Geodetic Instruments - Vocabulary
  • IS 17717-2-2023 In-Vitro Diagnostic (IVD) Device-Automated Clinical Chemistry Analyzer - Part 2 Dry Chemistry Analyzer
  • IS 17717-1-2023 In-Vitro Diagnostic (IVD) Device-Automated Clinical Chemistry Analyzer - Part 1 Wet Chemistry Analyzer
  • IS 228-18-1998 Methods of chemical analysis of steels: Part 18 Determination of oxygen by instrumental method
  • IS 15483-2-2024 Optics and Optical Instruments-Ancillary Devices for Geodetic Instruments - Part 2 Tripods

Kingdom of Bahrain Testing and Metrology Directorate

  • BH GSO ISO 8598-1:2017 Optics and optical instruments -- Focimeters -- Part 1: General purpose instruments
  • BH GSO ISO 14135-1:2015 Optics and optical instruments - Specifications for telescopic sights - Part 1 : General-purpose instruments
  • BH GSO ISO 9849:2022 Optics and optical instruments — Geodetic and surveying instruments — Vocabulary
  • BH GSO ISO 14135-2:2015 Optics and optical instruments - Specifications for telescopic sights - Part 2: High-performance instruments

Standard Association of Australia (SAA)

  • AS ISO 8598.1:2017 Optics and optical instruments — Focimeters, Part 1: General purpose instruments

Ente Nazionale Italiano di Unificazione

  • UNI EN ISO 8598-1:2014 Optics and optical instruments - Focimeters - Part 1: General purpose instruments
  • UNI 2194-1943 Glass products for chemical laboratories. Kipp Instruments

The Directorate General of Specifications and Metrology (DGSM)

  • OS GSO ISO 8598-1:2016 Optics and optical instruments -- Focimeters -- Part 1: General purpose instruments
  • OS GSO ISO 14135-1:2014 Optics and optical instruments - Specifications for telescopic sights - Part 1 : General-purpose instruments
  • OS GSO ISO 17123-4:2008 Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 4: Electro-optical distance meters (EDM instruments)
  • OS GSO ISO 17123-3:2007 Optics and optical instruments- Field procedures for testing geodetic and surveying instruments- Part 3: Theodolites
  • OS GSO ISO 12858-2:2007 Optics and optical instruments- Ancillary devices for geodetic instruments – Part 2: Tripods

International Organization for Standardization (ISO)

  • ISO 8598-1:2014 Optics and optical instruments - Focimeters - Part 1: General purpose instruments
  • ISO 10109-12:2004 Optics and optical instruments - Environmental requirements - Part 12: Conditions of transport for optical instruments
  • ISO 17123-7:2005 Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 7: Optical plumbing instruments
  • ISO 17123-11:2025 Optics and optical instruments — Field procedures for testing geodetic and surveying instruments — Part 11: GNSS instruments
  • ISO 9849:1991 Optics and optical instruments; geodetic instruments; vocabulary
  • ISO 10109-7:2001 Optics and optical instruments - Environmental requirements - Part 7: Test requirements for optical measuring instruments
  • ISO/CD 17123-6:2023 Optics and optical instruments
  • ISO 14135-1:2003 Optics and optical instruments - Specifications for telescopic sights - Part 1: General-purpose instruments
  • ISO 14135-2:2003 Optics and optical instruments - Specifications for telescopic sights - Part 2: High-performance instruments
  • ISO 12858-3:2005 Optics and optical instruments - Ancillary devices for geodetic instruments - Part 3: Tribrachs
  • ISO 12858-2:2020 Optics and optical instruments — Ancillary devices for geodetic instruments — Part 2: Tripods
  • ISO 10109-11:2001 Optics and optical instruments - Environmental requirements - Part 11: Optical instruments for outdoor conditions of use
  • ISO 12858-2:1999 Optics and optical instruments - Ancillary devices for geodetic instruments - Part 2: Tripods

Swedish Institute for Standards

  • SS-EN ISO 8598-1:2014 Optics and optical instruments - Focimeters - Part 1: General purpose instruments (ISO 8598-1:2014)

Gosstandart of Russia

  • GOST R 50606-1993 Optics and optical instruments. Dioptrimeters
  • GOST 14828-1969 Instruments for physical-chemical quantities measurement. Radiospectrometers. Terms

Asociación Española de Normalización (AENOR)

Spanish Association for Standardization (UNE)

  • UNE-EN ISO 8598-1:2015 Optics and optical instruments - Focimeters - Part 1: General purpose instruments. (ISO 8598-1:2014)
  • UNE 81-455-1985 Classification of monitoring instruments or analytical instruments for chemical pollutants in the atmospheric environment

Lithuanian Standards Office

  • LST EN ISO 8598-1:2015 Optics and optical instruments - Focimeters - Part 1: General purpose instruments (ISO 8598-1:2014)

Standards Norway

  • NS-EN ISO 8598-1:2014 Optics and optical instruments — Focimeters — Part 1: General purpose instruments (ISO 8598-1:2014)

Belgian Standards Institute

  • NBN C 73-817-1989 Safety of household appliances and similar instruments, dynamic impact experimental instruments and their standardization

Associação Brasileira de Normas Técnicas

Netherlands Institute for Standardization

  • NEN 3102-1989 Chemical analysis Laboratory apparatus, reagents and auxüiary materials