photometric parallax method

photometric parallax method, Total:220 items.

The international standard classification for "photometric parallax method" includes: Optical equipment , Linear and angular measurements , Limits and fits , Glass in general , Ferroalloys , Titanium and titanium alloys , aircraft tyres , Ceramic products , Other standards related to optics and optical measurements , Organic acids , Aircraft and space vehicles in general .

The Chinese standard classification for "photometric parallax method" includes: Chemical Measurement , Chemical raw material ore , Special electronic technology material , Optical instrument in general , Basic standards and general methods , Building glass , Steel and iron alloy analysis method , Tyre , Daily use ceramics products , Optoelectronic device assembly , General organic chemicals , Basic standards and general methods , Optical metrological instrument .

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

JJG 862-1994 Differential Spectrophotometer

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

GB/T 3301-1999 Standard method for measurement of volume，rim diameter allowance，hight allowance，weight allowance and size of defects of domestic ceramic ware
GB/T 2831-1981 Surface form deviation of optical elements－Inspection methods
GB/T 4698.19-1996 Sponge titanium, titanium and titanium alloys - Determination of molybdenum content-Thiocyanate differential spectrophotometric method
GB/T 37945-2019 Materials for organic light emitting diode display(OLED)—Test method of glass transfer temperature—Differential scanning calorimetry (DSC)
GB/T 4380-2004 Assessment of departure from roundness - Two-and three-point methods
GB/T 13655-1992 Static unbalance test method for aircraft tyre
GB/T 5059.6-2007 Ferromolybdenum—Determination of phosphorus content—Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometrc method
GB/T 4701.7-2009 Ferrotitanium—Determination of phosphorus content—Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
GB 2128-1980 Determination of silicon dioxide content in xenotime concentrates--Silicon molybdenum blue photometric method
GB/T 4380-1984 Assessment of departure from roundness--Two and three point methods
GB/T 13319-2003 Geometrical Product Specifications (GPS) - Geometrical tolerancing - Positional tolerancing
GB/T 13655-2004 Test method of static unbalance for aircraft tyres
GB/T 4698.19-2017 Methods for chemical analysis of titanium sponge, titanium and titanium alloys - Part 19: Determination of molybdenum content - Thiocyanate-differential spectrophotometry
GB/T 1628.2-2000 Glacial acetic acid for industrial use-Determination of acetic acid content-Titrimetric method
GB/T 44221-2024 Determination of wavefront aberration in optical systems—Electro-optical Shack-Hartmann method
GB/T 39135-2020 Test method of color difference for photovoltaic glass module used in building
GB/T 36965-2018 Test method for cross-linking degree of ethylene-vinyl acetate copolymer applied in photovoltaic modules. Differential scanning calorimetry(DSC)

Professional Standard - Chemical Industry

HG/T 4360-2012 Motion Pictures - Determination of Black-and-white Optical Sound Negative Film and High Contrast Positive Film Sensitivity Speed

Professional Standard - Agriculture

47药典四部-2020 0401 UV-visible spectrophotometry
181药典三部-2015 Spectrophotometry 0407 General Principles of Flame Photometry 22
67药典四部-2015 0401 UV-visible spectrophotometry
179药典三部-2015 Spectrophotometry 0405 General Principles of Fluorescence Spectrophotometry 20
178药典三部-2015 Spectrophotometry 0401 UV-Vis Spectrophotometry General Principles 19
2296药典二部-2010 Appendix IV Spectrophotometry
155药典三部-2010 Appendix Ⅱ Spectrophotometry ⅡC Fluorescence analysis method
70药典四部-2015 0406 Atomic absorption spectrophotometry
776兽药典一部-2015 Appendix Contents 0400 Spectroscopy 0402 Infrared Spectrophotometry
50药典四部-2020 0406 Atomic absorption spectrophotometry
48药典四部-2020 0402 Infrared Spectrophotometry
1758药典一部-2010 Appendix V Spectrophotometry
68药典四部-2015 0402 Infrared Spectrophotometry
51药典四部-2020 0407 flame photometry
69药典四部-2015 0405 Fluorescence spectrophotometry
154药典三部-2010 Appendix II Spectrophotometry IIB Atomic Absorption Spectrophotometry
180药典三部-2015 Spectrophotometry 0406 General Principles of Atomic Absorption Spectrophotometry 21
197药典三部-2020 Spectrophotometry 0401 UV-Vis Spectrophotometry
156药典三部-2010 Appendix Ⅱ Spectrophotometry Ⅱ D Flame Photometry
200药典三部-2020 Spectrophotometry 0407 flame photometry
198药典三部-2020 Spectrophotometry 0405 Fluorescence Spectrophotometry
773兽药典二部-2015 Appendix Contents 0400 Spectroscopy 0402 Infrared Spectrophotometry
777兽药典一部-2015 Appendix Contents 0400 Spectroscopy 0405 Fluorescence Spectrophotometry
49药典四部-2020 0405 Fluorescence spectrophotometry
153药典三部-2010 Appendix Ⅱ Spectrophotometry ⅡA UV-Vis Spectrophotometry
199药典三部-2020 Spectrophotometry 0406 Atomic Absorption Spectrophotometry

Professional Standard - Aviation

HB 20081-2012 Test method for optical angular deviation of transparent parts
HB 20081-2012/0490 Test method for optical angular deviation of transparent parts
HB 5647-1981 Labeling, tolerance and smoothness of blade profile (Trial)

Professional Standard - Commodity Inspection

SN/T 3319.3-2013 Ferrophorus for import and export - Part 2: Determination of Manganese content - Vanoclonolybeate molecular absorption spectrometric method

Taiwan Provincial Standard of the People's Republic of China

CNS 13108-1992 Method of Test for Chromium `6rVI`6sin Water by Spectrophotometric Method
CNS 7519-1981 Method for Determination of Cobalt in Ores (Absorptiometric Method)
CNS 12948-1992 Indication of Tolerances on Building Drawings
CNS 13071-1992 Method of Test for Color of Water`6rSpectrophotometric Method`6s

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

GJB 1797-1993 Test method for pressure difference strength of aircraft electrically heated glass under temperature difference
GJB 648-1988 Aerospace tire static balance difference test method

Professional Standard - Aerospace

QJ 812-1983 Scale tolerance
QJ 3194-2004 The measurement method for roundness of large dimension

Group Standards of the People's Republic of China

T/CZRX 0031-2024 Multi dimensional data differentiation evaluation method
T/CDIA 0006-2019 Pigment for waterborne colorant with color shading and glossiness detection

Professional Standard - Meteorology

QX/T 69-2024 Aerosol optical depth Sun photometer method

未注明发布机构

IESNA LM-76-02 IESNA Approved Method for Photometric Testing of Fiber Optics Lighting Systems

Professional Standard - Education

JY/T 025-1996 General rules for grating fluorescence spectrophotometry

Professional Standard - Building Materials

JC/T 2658-2022 Test method for 3D deviation ofcurved glass -- Laser scanning method

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 - Ferrous Metallurgy

YB/T 144-1998 Measurement method of the error of signal amplitute for ultrasonic flaw detector

Universal Oil Products Company (UOP)

UOP 876-1993 Platinum in chloroplatinic acid by spectrophotometry

American Society for Testing and Materials (ASTM)

ASTM C1510-01(2025)-25 Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM C1510-01(2016) Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM C1510-01 Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM C1510-01(2025) Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM C1510-01(2020) Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM F2469-15 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method
ASTM C1510-01(2007) Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM F2469-20 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method
ASTM F801-16 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
ASTM F801-96 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
ASTM C1510-01(2012) Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM F2469-25 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method
ASTM E2729-16 Standard Practice for Rectification of Spectrophotometric Bandpass Differences
ASTM E2729-16(2021) Standard Practice for Rectification of Spectrophotometric Bandpass Differences
ASTM E2729-09 Standard Practice for Rectification of Spectrophotometric Bandpass Differences
ASTM F801-96(2002) Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
ASTM F801-21 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
ASTM E474-80 Standard Method for EVALUATION OF TEMPERATURE SCALE FOR DIFFERENTIAL THERMAL ANALYSIS'
ASTM F801-96(2008) Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts
ASTM E2729-09(2015) Standard Practice for Rectification of Spectrophotometric Bandpass Differences
ASTM D3134-15(2024) Standard Practice for Establishing Color and Gloss Tolerances
ASTM D3134-15 Standard Practice for Establishing Color and Gloss Tolerances
ASTM F691-80(1991)e1 Standard Practice for Preparing Photoplates for Measuring Flatness Deviation
ASTM D3134-97(2003) Standard Practice for Establishing Color and Gloss Tolerances
ASTM D3134-97(2008)e1 Standard Practice for Establishing Color and Gloss Tolerances
ASTM D3134-97 Standard Practice for Establishing Color and Gloss Tolerances
ASTM D6313-99 Test Method for Total Sulfur in Aromatic Compounds by Hydrogenolysis and Sulfur Specific Difference Photometry
ASTM RR-E37-1003 1983 E0928-Standard Test Method for Purity by Differential Scanning Calorimetry
ASTM F2469-10 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method
ASTM RR-E37-1016 1995 E0928-Standard Test Method for Purity by Differential Scanning Calorimetry
ASTM RR-E28-2000 2021 E3246-Test Method for Differential Indentation Depth Hardness of Metallic Materials
ASTM F2469-05 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method

British Standards Institution (BSI)

BS ISO 6760-1:2024 Optics and photonics. Test method for temperature coefficient of refractive index of optical glasses - Minimum deviation method
23/30437344 DC BS ISO 6760-1. Optics and photonics. Test method for temperature coefficient of refractive index of optical glasses - Part 1. Minimum deviation method
25/30499303 DC BS ISO 6760-1 Optics and photonics - Test method for temperature coefficient of refractive index of optical glasses - Part 1: Minimum deviation method
BS ISO 21395-1:2020 Optics and photonics. Test method for refractive index of optical glasses - Minimum deviation method
BS ISO 8672:2014 Air quality. Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy. Membrane filter method
BS ISO 8255-1:2011 Microscopes. Cover glasses. Dimensional tolerances, thickness and optical properties
BS ISO 23539:2006 Photometry - The CIE system of physical photometry
BS ISO 8255-1:2017 Microscopes. Cover glasses. Dimensional tolerances, thickness and optical properties
BS EN ISO 14880-2:2006 Optics and photonics. Microlens arrays. Test methods for wavefront aberrations
BS PD ISO/TS 6838:2024 Ophthalmic optics — Contact lenses — Tolerances and methods for measurement of multifocal contact lens addition power
BS EN ISO 14880-2:2007 Optics and photonics - Microlens arrays - Test methods for wavefront aberrations
BS EN ISO 14880-2:2024 Optics and photonics. Microlens arrays - Test methods for wavefront aberrations
BS EN IEC 60793-1-49:2018 Optical fibres. Measurement methods and test procedures. Differential mode delay
BS 3730-3:1982(1999) Assessment of departures from roundness — Part 3 : Methods for determining departures from roundness using two - and three - point measurement
BS DD IEC/PAS 60793-1-49:2002 Optical fibres. Measurement methods and test procedures-Differential mode delay
BS EN ISO 4945:2018 Steel. Determination of nitrogen. Spectrophotometric method

German Institute for Standardization

DIN 58141-9:2025-01 Measurement of fiber optic elements – Part 9: Determination of deviation of the roundness and the concentricity of optical fibres
DIN 5033-4:1992-07 Colorimetry; spectrophotometric method
DIN 58141-9:2013-07 Measurement of fiber optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres; Text in German and English
DIN 58141-9:1995-11 Testing of fibre optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres
DIN 58141-9 E:2025-01 Draft Document - Measurement of fiber optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres
DIN 58141-9 E:2012 Draft Document - Measurement of fiber optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres; Text in German and English
DIN 5033-4:1992 Colorimetry; spectrophotometric method
DIN 4512-9:1993-01 Photographic sensitometry, determination of optical density; spectral conditions
DIN 58141-9:1995 Testing of fibre optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres
DIN 58141-9 E:2012-08 Measurement of fiber optic elements - Part 9: Determination of deviation of the roundness and the concentricity of optical fibres
DIN 5032-7:1985 Photometry; classification of illuminance meters and luminance meters
DIN 58170-54:1980 Inscription of dimensions and tolerances for optical systems; blemishes
DIN 58724:2000-03 Production in optical engineering - Spherometer - Ring for spherometer
DIN EN ISO 4945:2019-03 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018); German version EN ISO 4945:2018
DIN 670:1959 Bright round steel DIN
DIN EN 10178:2023-07 Steels - Determination of niobium - Spectrophotometric method; German and English version prEN 10178:2023 / Note: Date of issue 2023-05-26*Intended as replacement for DIN EN 10178 (1990-04).

DE-VDA

VDA 280-7-2008 Colorimetry for motor vehicles - Process for the development of perceptual colour tolerances using visual colour matching

International Organization for Standardization (ISO)

ISO 6760-1:2024 Optics and photonics-Test method for temperature coefficient of refractive index of optical glasses-Part 1: Minimum deviation method
ISO/DIS 6760-1:2014 Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 1: Minimum deviation method
ISO/CD 6760-1.2 Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 1: Minimum deviation method
ISO 6760-1:2025 Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 1: Minimum deviation method
ISO/CD TS 6838 Ophthalmic optics — Contact lenses — Tolerances and methods for measurement of multifocal contact lens addition power
ISO 8672:2014 Air quality - Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy - Membrane filter method
ISO 8672:1993 Air quality; determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy; membrane filter method
ISO 21395-1:2020 Optics and photonics — Test method for refractive index of optical glasses — Part 1: Minimum deviation method
ISO 23539:2005 Photometry - The CIE system of physical photometry
ISO 8255-1:1986 Optics and optical instruments; Microscopes; Cover glasses; Part 1 : Dimensional tolerances, thickness and optical properties
ISO/TS 6838:2024 Ophthalmic optics — Contact lenses — Tolerances and methods for measurement of multifocal contact lens addition power
ISO 4292:1985 Methods for the assessment of departure from roundness; Measurement by two- and three-point methods
ISO/CIE 23539:2023 Photometry — The CIE system of physical photometry

Ente Nazionale Italiano di Unificazione

UNI EN 2591-6301:2002 Aerospace series - Elements of electrical and optical connection - Test methods - Optical elements - Endurance at temperature
UNI 10623:1998 Colorimetry - Gloss difference compensation for surface colour measurement.
UNI 9544:1990 Pressure and vacuum gauges. Safety cryteria.
UNI EN 16318:2016 Fertilizers and liming materials - Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)

CZ-CSN

CSN 01 4423-1987 Methods of measurement of roundness deviations
CSN 01 4431-1987 Methods of mcasuremcnl of parallclism devialoris
CSN 71 0127-1954 Optical glass refractive index. differential measurement method
CSN ISO 778:1994 Pulps. Determination of copper content. Extraction photometric and flame atomic absorption spectrometric methods

Association Francaise de Normalisation

NF S20-013:1979 PHOTOGRAPHY. RADIOGRAPHIC FILMS FOR MEDICAL USE. MEASUREMENT OF SENSITIVITY AND MEAN CONTRAST.
NF T01-035:1979 Molecular absorption spectrophotometry. Spectrophotometers and photometers. Record card. Standard layout.
NF ISO 10110-6:2025 Optics and photonics - Preparation of drawings for optical elements and systems - Part 6: Centring and tilt tolerances
NF F18-102:1990 Railway rolling stock. Roller bearing axle boxes for outside axle journals. Tolerances. Surface finish.
NF A06-555*NF EN ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method

American Water Works Association (AWWA)

AWWA WQTC69384 Differential Absorbance Spectroscopy in the Examination of Proton and Copper-Binding Properties of Suwannee River Fulvic Acid

Japanese Industrial Standards Committee (JISC)

JIS B 7072-1:2020 Measuring method for temperature coefficient of refractive index of optical glass -- Part 1: Minimum deviation method
JIS B 7071-1:2022 Optics and photonics -- Test method for refractive index of optical glasses -- Part 1: Minimum deviation method

CU-NC

NC 02-06-1968 Representation of linear and angular desviations

Standard Association of Australia （SAA）

AS B219:1966 Methods for the assessment of departures from roundness

VN-TCVN

TCVN 6504-1999 Air quality.Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy.Membrane filter method

Korean Agency for Technology and Standards (KATS)

KS I ISO 8672:2006 Air quality－Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy(Membrane filter method)
KS M 5509-1983 Test methods for psychrometric lightness difference of paint color
KS D ISO 1053:2012 Zinc－Determination of copper content?Spectrophotometric method
KS D 0259-2022 Methods of measurement of thickness,thickness variation and bow for silicon wafer
KS J 4207-2011(2021) Spectrophotometric and fluorometric methods for GMO quantification
KS C 6986-2004 Evaluation method of geometrical deviation onfibre optic connector interfaces
KS B ISO 4292:2004 Methods for the assessment of departure from roundness-Measurement by two-and three-point methods
KS M 0012-1999 General rules for molecular absorptiometric analysis
KS M 0012-2009 General rules for molecular absorptiometric analysis
KS C 6986-2019 Evaluation method of geometrical deviation on fibre optic connector interfaces
KS C 7605-1967 Photometric measurement on standard fluorescent lamps
KS B ISO 4292:2014 Methods for the assessment of departure from roundness — Measurement by two-and three-point methods
KS M 0026-2008 General rules for fluorometric analysis
KS M 0026-2013 General rules for fluorometric analysis
KS K 0111-1986 Measuring method for degree of mercerization of cotton: Barium activity method
KS K 0111-2017 Measuring method for degree of mercerization of cotton: Barium activity method
KS C 6986-2014 Evaluation method of geometrical deviation on fibre optic connector interfaces

American National Standards Institute （ANSI)

ANSI Z80.28-2009 Methods for reporting optical aberrations of eyes
ANSI Z80.28-2017 Ophthalmics - Methods for Reporting Optical Aberrations of Eyes
ANSI Z80.28-2010 Ophthalmics - Methods for Reporting Optical Aberrations of Eyes
ANSI/ASTM D4591:2001 Test Method for Determining Temperatures and Heats of Transitions of Fluoropolymers by Differential Scanning Calorimetry
ANSI Z80.28-2004 Ophthalmics - Methods for Reporting Optical Aberrations of Eyes
ANSI/ASTM D5225:1998 Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer (08.03)

AT-ON

ONORM M 6775 Teil.4-1987 Accuracy of bevel gears; tolerances for shaft angle errors and common apex errors
ONORM ISO 4292:1988 Methodsfor the assessment ofdeparture from roundness; measurement by two- and three-point methods

GCC Standardization Organization

GSO ISO 8672:2016 Air quality -- Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy -- Membrane filter method
GSO ASTM D2616:2015 Standard Test Method for Evaluation of Visual Color Difference With a Gray Scale

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 8672:2017 Air quality -- Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy -- Membrane filter method

SE-SIS

SIS SS-ISO 4292:1991 Methods for the assessment of departure from roundness — Measurement by two- and three-point methods
SIS SS-ISO 4291:1991 Methods for the assessment of departure from roundness — Measurement of varia- tions in radius

ANSI - American National Standards Institute

Z80.28-2004 Ophthalmics - Methods for Reporting Optical Aberrations of Eyes (VC)
Z80.28-2017 Ophthalmics – Methods of Reporting Optical Aberrations of Eyes (VC)
Z80.28-2010 Ophthalmics – Methods of Reporting Optical Aberrations of Eyes (VC)

VE-FONDONORMA

NORVEN 24-25-1965 Difference in conveyor belt thickness and cover thickness difference

Bureau of Indian Standards

IS 465-1953 Method for conducting size (denier) deviation and maximum deviation tests for category I raw silk (tentative)
IS 15270-1-2002 Optics and Optical Instruments - Microscopes - Cover Glasses - Part 1 : Dimensional Tolerances, Thickness and Optical Properties
IS 475-1953 Method for conducting size (denier) deviation and maximum deviation tests for category II raw silk (tentative)
IS 15098-2002 Textiles - Method for determination of colour fastness - Methods for Calculation of Colour Difference
IS 15374-2003 Methods for the Assessment of Departure from Roundness - Measurement by Two- and Three-Point Methods

Danish Standards Foundation

DANSK DS/ISO/TS 6838:2024 Ophthalmic optics – Contact lenses – Tolerances and methods for measurement of multifocal contact lens addition power
DS 1103.7:1982 Test methods for rigid flat sheets — Determination of dimensions, angular and form deviations

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 8255-1:2014 Optics and optical instruments -- Microscopes -- Cover glasses -- Part 1: Dimensional tolerances, thickness and optical properties

RO-ASRO

STAS SR ISO 8255-1:1995 Optics and optical instruments Microscopes — Cover glasses Part 1: Dimensional tolerances, thickness and optical properties
STAS 7391/2-1974 Tolerances of form and of position TOLERANCES OF CIRCULARITY AND OF GYLINDRICITY
STAS 6880/3-1988 Colorimetry REFLECTION COLORIMETRY Calculation of colour differences

BE-NBN

NBN 61-1951 Photometry Glossary

PL-PKN

PN C89025-1990 Plastics Determination of temperatur? of deflection by Martens method
PN Z04045-15-1992 Air purity protection Tests for aldehydes Determination of formaldehydein ambient air (immission) by spectrophotometric method with pararosaniline

Gosstandart of Russia

GOST 2848-1975 Tapers of tools. Tolerances. Methods and means of control
GOST 27981.5-1988 Copper of high purity. Methods of photometric analysis

Swedish Institute for Standards

SS-EN 10178:2024 Steels - Determination of niobium - Spectrophotometric method
SS-ISO 4292:1991 Methods for the assessment of departure from roundness - Measurement by two- and three-point methods
SS-ISO 4291:1991 Methods for the assessment of departure from roundness - Measurement of variations in radius

Spanish Association for Standardization (UNE)

UNE-EN ISO 4945:2019 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018)

American Association of Textile Chemists and Colorists

AATCC 203-2014 Light Blocking Effect of Textiles: Spectrophotometric Method
AATCC 203-2016 Light Blocking Effect of Textiles: Spectrophotometric Method

YU-JUS

JUS C.A1.366-1988 Zinc. Determinacion of copper content. Spectrophotometric method

Others: photometric parallax method,Spectrophotometric dish difference