optical density

optical density, Total:75 items.

The international standard classification for "optical density" includes: Particle size analysis. sieving , Biology. Botany. Zoology , Fissile materials , Ophthalmic equipment , Chemical analysis of metals .

The Chinese standard classification for "optical density" includes: Powder metallurgy analysis method , Sieving, Sieve Plate and Sieve Screen , Nuclear material, nuclear fuel and their analytical test method , Medical optical instrument and endoscope , Hygiene, safety and labor protection .

Taiwan Provincial Standard of the People's Republic of China

CNS 14818-2004 Method of test for density of smoke generated by solid materials -Specificoptical method of vertical type

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

GB/T 19077.1-2008 Particle size analysis - Laser diffraction methods - Part 1: General principles
GB/T 11848.12-1999 Determination of boron in uranium ore concentrate by spectrophotometry
GB/T 34796-2017(英文版) Quantification and purity analysis of nucleic acid concentration in solution—Ultraviolet spectrophotometry
GB/T 19077.1-2003 Particle size analysis-Laser diffraction method
GB/T 19077-2024 Particle size analysis—Laser diffraction methods
GB/T 19077-2016 Particle size analysis―Laser diffraction methods
GB/T 11848.16-1991 Determination of phosphorus in uranium ore concentrate by spectrophotometry
GB/T 40177-2021 Optics and optical instruments—Ophthalmology—Graduated dial scale
GB/T 34796-2017 Quantification and purity analysis of nucleic acid concentration in solution-Ultraviolet spectrophotometry

Hebei Provincial Standard of the People's Republic of China

DB13/T 2589-2017 Infrared Spectrophotometric Method for Determination of Industrial Fume Concentration

Professional Standard - Energy

NB/SH/T 0951-2017 Standard test method for particle size distribution of catalytic crackng catalyst by laser light scattering

Professional Standard - Coal

MT/T 1102-2009 Coal mine dust concentration transducer

National Standardisation Body (ASRO)

STAS 9464-1981 Organic dyestufis OPTICAL BLEACHING AGENT Determination of concentration by the spectrophotometry method
STAS SR ISO 10313:1995 Ambient air - Detennination of the mass concentration of ozon -Chemiluminescence method
STAS 8170/1-1980 ORGANIC DYES Determination of delivery concentration by spectroiphotometric method

Gosstandart of Russia

GOST R 59740-2021 Optics and photonics. Semiconductor lasers for the determination of low concentrations of substances. Methods for measuring characteristics
GOST 28326.4-1989 Technical liquid ammonia. Determination of oil mass concentration by spectrophotometry method
GOST 13208-1978 Pyrotechnic photoilluminating items. Photometering method

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 10313:2014 Ambient air - Determination of the mass concentration of ozone -Chemiluminescence method
OS GSO ISO 7996:2017 Ambient air -- Determination of the mass concentration of nitrogen oxides -- Chemiluminescence method

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 10313:2015 Ambient air - Determination of the mass concentration of ozone -Chemiluminescence method

International Organization for Standardization (ISO)

ISO 10313:1993 Ambient air; determination of the mass concentration of ozone; chemiluminescence method
ISO 10313:1993/PRF Amd 1 Ambient air-Determination of the mass concentration of ozone-Chemiluminescence method
ISO 7996:1985 Ambient air; Determination of the mass concentration of nitrogen oxides; Chemiluminescence method
ISO 10313:1993/DAmd 1:2011 Ambient air — Determination of the mass concentration of ozone — Chemiluminescence method — Amendment 1
ISO 10313:1993/CD Amd 1 Ambient air — Determination of the mass concentration of ozone — Chemiluminescence method — Amendment 1
ISO/CIE 23539:2023 Photometry — The CIE system of physical photometry
ISO 8429:1986 Optics and optical instruments; Ophthalmology; Graduated dial scale

Korean Agency for Technology and Standards (KATS)

KS I ISO 10313-2020 Ambient air－Determination of the mass concentration of ozone(Chemiluminescence method)
KS I ISO 10313:2005 Ambient air-Determination of the mass concentration of ozone(Chemiluminescence method)
KS I ISO 10313-2005(2020) Ambient air－Determination of the mass concentration of ozone(Chemiluminescence method)
KS I ISO 7996:2006 Ambient air－Determination of the mass concentration of nitrogen oxides(Chemiluminescence method)
KS I ISO 7996-2006(2016) Ambient air－Determination of the mass concentration of nitrogen oxides(Chemiluminescence method)
KS I ISO 7996:2021 Ambient air — Determination of the mass concentration of nitrogen oxides — Chemiluminescence method
KS I ISO 7996-2021 Ambient air — Determination of the mass concentration of nitrogen oxides — Chemiluminescence method

Spanish Association for Standardization (UNE)

UNE 77232:1996 AMBIENT AIR. DETERMINATION OF THE MASS CONCENTRATION OF OZONE. CHEMILUMINESCENCE METHOD.
UNE 77212:1993 AMBIENT AIR. DETERMINATION OF THE MASS CONCENTRATION OF NITROGEN OXIDES. CHEMILUMINESCENCE METHOD.

Cuban Institute of Standards and Metrology

NC 44-12-12-1985 Ores. Copper Conoentrates Photometric Deterraination of Arsenic
NC 57-98-4-1986 Clinical Methods and Ais Photometric Determination of Thymol Turbidness in Human Serum. Chemical Analysis Method

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

TCVN 6157-1996 Ambient air.Determination of the mass concentration of ozone.Chemiluminescence method
TCVN 6138-1996 Ambient air.Determination of the mass concentration of nitrogen oxides.Chemiluminescence method

American Society for Testing and Materials (ASTM)

ASTM E158-86(1996)e1 Standard Practice for Fundamental Calculations to Convert Intensities into Concentrations in Optical Emission Spectrochemical Analysis (Withdrawn 2004)
ASTM D7512-09 Standard Guide for Monitoring of Suspended-Sediment Concentration in Open Channel Flow Using Optical Instrumentation
ASTM D5149-02 Standard Test Method for Ozone in the Atmosphere: Continuous Measurement by Ethylene Chemiluminescence
ASTM D5149-95 Standard Test Method for Ozone in the Atmosphere: Continuous Measurement by Ethylene Chemiluminescence
ASTM D5149-02(2008) Standard Test Method for Ozone in the Atmosphere: Continuous Measurement by Ethylene Chemiluminescence
ASTM D7512-09(2023) Standard Guide for Monitoring of Suspended-Sediment Concentration in Open Channel Flow Using Optical Instrumentation
ASTM D5149-02(2016) Standard Test Method for Ozone in the Atmosphere: Continuous Measurement by Ethylene Chemiluminescence

GCC Standardization Organization

GSO ISO 7996:2017 Ambient air -- Determination of the mass concentration of nitrogen oxides -- Chemiluminescence method

Swedish Institute for Standards

SS-ISO 7996:1992 Ambient air - Determination of the mass concentration of nitrogen oxides - Chemiluminescence method

American Water Works Association (AWWA)

AWWA WQTC62562 Nitrogen Chemiluminscent Detection of Nitrosamines at Low Nanogram per Liter Aqueous Concentrations

Japanese Industrial Standards Committee (JISC)

JIS K 0400-80-10:2000 Water quality -- Measurement of biochemical parameters -- Spectrometric determination of the chlorophyll-a concentration

Association of German Mechanical Engineers

VDI 3783 BLATT 18-2017 Environmental meteorology — Photolysis frequencies for calculations of pollutant concentrations in the troposphere
VDI 3783 BLATT 18-2017 Environmental meteorology — Photolysis frequencies for calculations of pollutant concentrations in the troposphere
VDI 3783 BLATT 18-2015 Environmental meteorology - Photolysis frequencies for calculating pollutant concentrations in the troposphere
VDI 2083 Blatt 8-1-2014 VDI 2083 Part 8.1: Air cleanliness by chemical concentration (ACC)
VDI 2083 BLATT 8.1-2014 Cleanroom technology — Air purity based on chemical concentration (ACC)

British Standards Institution (BSI)

BS ISO 10260:1992 Water quality. Measurement of biochemical parameters. Spectrometric determination of the chlorophyll-a concentration
23/30475746 DC BS ISO 10313 AMD 1. Ambient air. Determination of the mass concentration of ozone. Chemiluminescence method
BS EN 14792:2005 Stationary source emissions - Determination of mass concentration of nitrogen oxides (NOx) - Reference method: Chemiluminescence
BS EN ISO 8429:1987 Optics and optical instruments - Ophthalmology - Graduated dial scale

International Telecommunication Union (ITU)

ITU-T L.126-1996 Method for estimating the concentration of hydrogen in optical fibre cables

Association Francaise de Normalisation

NF X43-373:2006 Stationary source emissions - Determination of mass concentration of nitrogen oxides (NOx) - Reference method : chemiluminescence.
NF S12-111*NF EN ISO 8429:1996 Optics and optical instruments. Ophthalmology. Graduated dial scale.

Lithuanian Standards Office

LST ISO 7996:1999 Ambient air. Determination of the mass concentration of nitrogen oxides. Chemiluminescence method (ISO 7996:1985)

Ente Nazionale Italiano di Unificazione

UNI EN 14792:2017 Stationary source emissions - Determination of mass concentration of nitrogen oxides - Standard reference method: chemiluminescence

German Institute for Standardization

DIN EN ISO 8429:1996 Optics and optical instruments - Ophthalmology - Graduated dial scale (ISO 8429:1986); German version EN ISO 8429:1996
DIN 58932-3:1994-04 Haematology; determination of the concentration of blood corpuscles in blood; determination of the concentration of erythrocytes; reference method

Danish Standards Foundation

DANSK DS/EN ISO 8429:1996 Optics and optical instruments - Ophthalmology - Graduated dial scale
DS/EN ISO 8429:1997 Optics and optical instruments - Ophthalmology - Graduated dial scale

International Commission on Illumination (CIE)

CIE S 010/E-2004 Photometry The CIE system of physical photometry (E)

European Committee for Standardization (CEN)

EN 14792:2005 Stationary source emissions - Determination of mass concentration of nitrogen oxides (NOx) - Reference method: Chemiluminescence
EN ISO 8429:1996 Optics and Optical Instruments - Opthamology - Graduated Dial Scale

Yugoslav Association for Standardization

JUS H.B8.151-1985 Heavy chemlcals. Carbamlde (urea) for Industrlal use. Determlnatlon ad bfuret content Photometrlc method