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Position: Chinese Standard in English/GB/T 223.5-2008
GB/T 223.5-2008   Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method (English Version)
Standard No.: GB/T 223.5-2008 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 4000 words Price(USD):80.0 remind me the price change

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Implemented on:2009-4-1 Delivery: via email in 1 business day
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Standard No.: GB/T 223.5-2008
English Name: Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method
Chinese Name: 钢铁 酸溶硅和全硅含量的测定 还原型硅钼酸盐分光光度法
Chinese Classification: H11    Steel and iron alloy analysis method
Professional Classification: GB    National Standard
ICS Classification: 77.080.01 77.080.01    Ferrous metals in general 77.080.01
Issued by: AQSIQ; SAC
Issued on: 2008-08-19
Implemented on: 2009-4-1
Status: valid
Superseding:GB/T 223.5-1997 Methods for chemical analysis of iron,steel and alloy The reduced molybdosilicate spectrophotometric method for the determination of acid-soluble silicon content
Language: English
File Format: PDF
Word Count: 4000 words
Price(USD): 80.0
Delivery: via email in 1 business day
WARNING: The personnel using this Part of GB/T 223 shall have practical experiences in regular laboratory work. This Part does not point out all the possible safety problems. Users have the responsibility to take appropriate safety and health measures and also ensure meeting the conditions specified in relevant regulations of the State. 1 Scope This Part of GB/T 223 specifies the determination of acid-soluble silicon and total silicon content in steel and iron with reduced molybdosilicate spectrophotometric method. This Part is applicable to the determination of silicon content, the mass fraction of which is 0.010 %~1.00% in steel and iron. 2 Normative References The following standards contain provisions which, through reference in this part of GB/T 223, constitute provisions of this Part. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Part are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to this Part. GB/T 6379.1 “Accuracy(trueness and precision) of Measurement Methods and Results—Part 1: General Principles and Definitions” (GB/T 6379.12004; ISO 5725-1:1994, IDT) GB/T 6379.2 "Accuracy (Trueness and Precision) of Measurement Methods and Results-Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method" (GB/T 6379.2-2004, ISO 5725-2:1994, IDT) GB/T 20066 "Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition" (GB/T 20066-2006, ISO 14284: 1996, IDT) 3 Principles Dissolve the sample with sulfuric acid-nitric acid or hydrochloric acid-nitric acid in proper proportion and then fuse the acid insoluble residues with mix flux of sodium carbonate and boric acid. In weakly acidic solution, oxidized molybdosilicate (molybdosilicate yellow) is generated by silicic acid and molybdate. Increase the sulfuric acid concentration and add oxalic acid to eliminate the interference of phosphorus, arsenium and vanadium, ascorbic acid is adopted to carry out selective reduction and then molybdosilicate is reduced to blue reduced molybdosilicate (molybdosilicate blue). At 810 nm wavelength, spectrophotometric determination is carried out for blue reduced molybdosilicate.
Contents Foreword I 1 Scope 2 Normative References 3 Principles 4 Reagents and Materials 5 Instruments and Equipments 6 Sampling and Sample Preparation 7 Analysis Procedures 8 Expression of Results 9 Test Report Appendix A (Informative) Additional Information for Internationally Common Test Appendix B (Informative) Diagram of Precision Data
Referred in GB/T 223.5-2008:
*GB/T 6379.1-2004 Accuracy(trueness and precision) of measurement methods and results - Part 1: General principles and definitions
*GB/T 6379.2-2004 Accuracy (trueness and precision) ofmeasurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
*GB/T 20066-2006 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition
GB/T 223.5-2008 is referred in:
* GB/T 1591-2008 High Strength Low Alloy Structural Steels
* GB/T 21591-2008 Dangerous goods - Test method for tear of intermediate bulk containers (IBCs)
* JB/T 4385.1-1999 General specifications for open die forgings on hammer
* GB 30584-2014 Seamless Steel Pipes for Crane Jib
* GB 9948-2013 Seamless steel tubes for petroleum cracking
* GB 30584-2014 Seamless Steel Pipes for Crane Jib
* GB/T 3094-2012 Cold drawn shaped steel tubes
* GB 30584-2014 Seamless Steel Pipes for Crane Jib
* GB 9948-2013 Seamless steel tubes for petroleum cracking
* GB/T 3280-2007/XG1-2012 Cold rolled stainless steel plate, sheet and strip
* GB/T 3094-2012 Cold drawn shaped steel tubes
* GB 1499.1-2008/XG1-2012 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars
* GB/T 5680-2010 Austenitic manganese steel castings
* GB/T 701-2008 Hot Rolled Low Carbon Steel Wire Rods
* GB/T 17396-2009 Hot-rolled seamless steel tubes for hydraulic pillar service
* GB/T 3639-2009 Seamless cold-drawn or cold-rolled steel tubes for precision applications
* GB/T 4240-2009 Stainless steel wires
* GB 912-2008 Hot-rolled sheets and strips of carbon structural steels and high strength low alloy structural steels
* GB 5310-2008 Seamless Steel Tubes and Pipes for High Pressure Boiler
* GB/T 1591-2008 High Strength Low Alloy Structural Steels
* GB/T 710-2008 Hot-rolled quality carbon structural steel sheets and strips
* GB 3087-2008 Seamless Steel Tubes for Low and Medium Pressure Boiler
* GB 1499.2-2007/XG1-2009 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars
* GB/T 8163-2008 Seamless steel tubes for liquid service
* GB/T 3091-2008 Welded Steel Pipes for Low Pressure Liquid Delivery
* GB/T 8749-2008 Hot-rolled quality carbon structural steel strips
* GB/T 3078-2008 Quality structural steel cold drawn bars
* GB/T 13793-2008 Steel Pipes with a Longitudinal Electric (Resistance) Weld
* GB/T 3091-2008 Welded Steel Pipes for Low Pressure Liquid Delivery
* GB/T 8749-2008 Hot-rolled quality carbon structural steel strips
* GB/T 3078-2008 Quality structural steel cold drawn bars
* GB/T 13793-2008 Steel Pipes with a Longitudinal Electric (Resistance) Weld
* GB 1499.1-2008 Steel for the Reinforcement of Concrete——Part 1: Hot Rolled Plain Bars (including Amendment 1)
* GB/T 11263-2005 The Hot-rolled H and Cut T Section
* GB/T 5216-2004 Structural steels subject to end-quench hardenability requirments
* GB/T 18984-2003 Seamless steel tubes for low-temperature-service piping
* GB/T 18983-2003 Oil - Hardened and tempered stell wire for mechanical springs
* GB/T 18254-2002 High-carbon chromium bearing steel
* JB/T 4385.1-1999 General specifications for open die forgings on hammer
* GB/T 4237-2007 Hot Rolled Stainless Steel Plate, Sheet and Strip
* GB/T 18254-2002 High-carbon chromium bearing steel
* GB/T 4171-2008 Atmospheric corrosion resisting structural steel
* GB 3087-2008 Seamless Steel Tubes for Low and Medium Pressure Boiler
* GB/T 1220-2007 Stainless steel bars
* GB/T 4237-2007 Hot Rolled Stainless Steel Plate, Sheet and Strip
* GB/T 3094-2012 Cold drawn shaped steel tubes
* GB/T 3094-2012 Cold drawn shaped steel tubes
* GB/T 3078-2008 Quality structural steel cold drawn bars
* GB/T 3094-2012 Cold drawn shaped steel tubes
* GB/T 8749-2008 Hot-rolled quality carbon structural steel strips
* GB/T 20564.1-2007 Continuously cold rolled high strength steel sheet and strip for automobile-Part 1:Bake hardening steel
* GB/T 20564.2-2006 Continuously cold rolled high strength steel sheet and strip for automobile - Part 2: Dual phase steel
* GB/T 20564.3-2007 Continuously cold rolled high strength steel sheet and strip for automobile—Part 3:High strength interstitial free steel
* GB/T 20564.4-2010 Continuously cold rolled high strength steel sheet and strip for automobile—Part 4:High strength low alloy steel
* GB/T 20564.5-2010 Continuously cold rolled high strength steel sheet and strip for automobile—Part 5:Isotropic steel
* GB/T 20564.5-2010 Continuously cold rolled high strength steel sheet and strip for automobile—Part 5:Isotropic steel
* GB/T 20564.6-2010 Continuously cold rolled high strength steel sheet and strip for automobile—Part 6:Transformation induced plasticity steel
* GB/T 18983-2003 Oil - Hardened and tempered stell wire for mechanical springs
* GB 30584-2014 Seamless Steel Pipes for Crane Jib
* GB/T 18254-2002 High-carbon chromium bearing steel (including Amendment 1)
* GB/T 28417-2012 Carbon bearing steel
* GB/T 4697-2008 Hot-rolled U-type steel for mine timbering
* NB/T 47018.5-2011 Technical permission of welding materials for pressure equipment - Part 5: Stainless steel strip electrodes and fluxes for overlay welding
* GB/T 1220-2007 Stainless steel bars
* GB/T 6725-2002 Cold Formed Steel Sections
* GB/T 3091-2008 Welded Steel Pipes for Low Pressure Liquid Delivery
* GB 1499.1-2008 Steel for the Reinforcement of Concrete——Part 1: Hot Rolled Plain Bars (including Amendment 1)
* GB 1499.2-2007 Steel for the Reinforcement of Concrete - Part 2: Hot Rolled Ribbed Bars
* GB 1499.2-2007/XG1-2009 Steel for the reinforcement of concrete—Part 2:Hot rolled ribbed bars
* GB 1499.1-2008 Steel for the Reinforcement of Concrete——Part 1: Hot Rolled Plain Bars (including Amendment 1)
* GB 9948-2006 Seamless steel tubes for petroleum cracking
* GB/T 8163-2008 Seamless steel tubes for liquid service
* GB 5310-2008 Seamless Steel Tubes and Pipes for High Pressure Boiler
* GB 5310-2008 Seamless Steel Tubes and Pipes for High Pressure Boiler
* GB 1499.1-2008/XG1-2012 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars
* GB/T 711-2008 Hot-rolled Quality Carbon Structural Steel Plates, Sheets and Wide Strips
* GB 24511-2009 Stainless steel plate,sheet and strip for pressure equipments
* GB/T 5216-2014 Structural steels with specified hardenability bands
* GB/T 3274-2007 Hot-rolled plates and strips of carbon structural steels and high strength low alloy structural steels
* YB/T 4149-2006 Continuously cast ruond billet for seamless steel tube rolling
* GB/T 1222-2007 Spring steels
* GB/T 18669-2012 Steel bars for ship archor chain
* GB/T 1221-2007 Heat-resistant steel bars
* GB/T 14978-2008 Continuously hot-dip aluminum-zinc alloy coated steel sheet and strip
* GB/T 14164-2013 Hot rolled wide strips for line pipe of petroleum and natural gas
* GB 712-2011 Ship and ocean engineering structural steel
* GB/T 25825-2010 Rolls for hot strip mill and plate mill
* GB/T 5312-2009 Carbon and carbon-manganese steel seamless steel tubes and pipes for ship
* GB/T 4237-2015 Hot rolled stainless steel plate,sheet and strip
* GB/T 3280-2015 Cold rolled stainless steel plate, sheet and strip
* NB/T 20009.9-2013 Welding Materials for Pressurized Water Reactor Nuclear Power Plants - Part 9: Carbon Steel Wires and Fluxes for Submerged Arc Welding of Classes 1, 2, 3 Components
* GB/T 9943-2008 High-speed tool steels
* GB/T 3091-2015 Welded steel pipes for low pressure liquid delivery
* GB/T 24588-2009 Stainless steel wires for spring
* GB/T 6478-2015 Steels for cold heading and cold extruding
* YB/T 5311-2010 Carbon spring steel wire for significant use
* GB/T 699-2015 Quality carbon structural steels
* GB/T 3077-2015 Alloy structure steels
* GB 15382-2009 General specifications of gas cylinder valves
* DL/T 680-2015 Specification for electric power industry wear-resistant pipes
* DL/T 681-2012 Specification for Wear Resistant Parts of Coal Mill in Coal-fired Power Plants
* GB/T 714-2015 Structural steel for bridge
* GB/T 3524-2015 Hot-rolled carbon and low alloy structural steel strips
* GB/T 1299-2014 Tool and mould steels
*GB/T 3429-2002 Wire rod for electrode
*GB/T 4171-2000 Superior atmospheric corrosion resisting structural steel
*GB/T 11264-2012 Hot-rolled light rails
*TB/T 46-2015 Railway Vehicle Center Plate
*GB/T 13793-2016 Straight seam welded steel pipe
*GB/T 1504-2008 Cast iron rolls
*GB/T 18254-2016 High-carbon chromium bearing steel
*GB/T 29601-2013 Stainless steel ware
*GB/T 31204-2014 Carbon Steel Investment Casting
*YB/T 4155-2006 Hot-rolled round carbon steel bars and rods for standard parts
*GB/T 20564.1-2017 Continuously cold rolled high strength steel sheet and strip for automobile--Part 1: Bake hardening steel
*GB/T 20564.3-2017 Continuously cold rolled high strength steel sheet and strip for automobile--Part 3: High strength interstitial free steel
*GB/T 32389-2015 Utensils for baking food
*GB/T 35840.1-2018 Steels for plastic mould―Part 1:Non-alloy steels
*GB/T 1234-2012 High resistance alloys for electrical heating
*GB/T 8163-2018 Seamless steel pipes for liquid service
*GB/T 19879-2015 Steel plates for building structure
*YB/T 091-2005 Forging(rolling) steel grinding balls
*GB/T 33954-2017 Hot-rolled wire rod for quenched and tempered spring steel wires
*GB/T 26075-2019 Steel bars for sucker rods
*YB/T 4213-2010 Continuously hot-dip zinc (aluminum-zinc) coated steel sheet and strip with restricted hazardous substance
*YB/T 4641-2018 Cryogenic ribbed bars for the reinforced concrete tanks of LNG
*GB/T 20564.10-2017 Continuously cold rolled high strength steel sheet and strip for automobile--Part 10: Twinning induced plasticity steel
*GB/T 2520-2017 Cold-reduced electrolytic tinplate [Steel-plate & steel-strip]
*GB/T 2518-2019 Continuously hot-dip zinc and zinc alloy coated steel sheet and strip
*GB/T 20887.7-2017 Continuously hot rolled high strength steel sheet and strip for automobile--Part 7: Steels for hydraulic forming
*GB/T 32957-2016 Hydraulic and pneumatic systems for cold drawn or cold rolled precision seamless steel tubes with internal diameter
*GB/T 3093-2021 High-pressure seamless steel tubes for diesel engine
*GB/T 3639-2021 Seamless cold-drawn or cold-rolled steel tubes for precision applications
*GB/T 3087-2022 Seamless steel tubes and pipes for low and medium pressure boiler
*GB/T 18579-2019 High-carbon chromium bearing steel wires
*GB/T 20564.5-2022 Continuously cold rolled high strength steel sheet and strip for automobile—Part 5: Isotropic steel
*GB/T 20564.4-2022 Continuously cold rolled high strength steel sheet and strip for automobile—Part 4:High strength low alloy steel
*GB/T 20564.7-2022 Continuously cold rolled high strength steel sheet and strip for automobile—Part 7: Martensitic steel
*GB/T 24588-2019 Stainless steel spring wires
*GB/T 4232-2019 Stainless steel wire for cold heading and cold forging
*GB/T 1499.1-2017 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars
*GB/T 20564.13-2023 Continuously cold rolled high strength steel sheet and strip for automobile―Part 13:Medium manganese steel
*GB/T 14986.3-2018 Soft magnetic alloys—Part 3:Iron-cobalt alloys
*GB/T 14986.4-2018 Soft magnetic alloys—Part 4:Iron-chromium alloys
*GB/T 14986.5-2018 Soft magnetic alloys—Part 5:Iron-aluminum alloys
*GB/T 18983-2017 Wire for quenched and tempered springs
*GJB 1496B-2014 Specification for 28Cr2Mo, 26SiMnMo and 22SiMn2TiB Steel Plates
*GB/T 24187-2023 Cold-drawn precision single welded steel tubes
*GB/T 1504-2024 Cast iron rolls
*GB 1499.1-2024 Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars
*GB/T 718-2024 Pig iron for casting
Code of China
Standard
GB/T 223.5-2008  Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method (English Version)
Standard No.GB/T 223.5-2008
Statusvalid
LanguageEnglish
File FormatPDF
Word Count4000 words
Price(USD)80.0
Implemented on2009-4-1
Deliveryvia email in 1 business day
Detail of GB/T 223.5-2008
Standard No.
GB/T 223.5-2008
English Name
Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method
Chinese Name
钢铁 酸溶硅和全硅含量的测定 还原型硅钼酸盐分光光度法
Chinese Classification
H11
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2008-08-19
Implemented on
2009-4-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 223.5-1997 Methods for chemical analysis of iron,steel and alloy The reduced molybdosilicate spectrophotometric method for the determination of acid-soluble silicon content
Language
English
File Format
PDF
Word Count
4000 words
Price(USD)
80.0
Keywords
GB/T 223.5-2008, GB 223.5-2008, GBT 223.5-2008, GB/T223.5-2008, GB/T 223.5, GB/T223.5, GB223.5-2008, GB 223.5, GB223.5, GBT223.5-2008, GBT 223.5, GBT223.5
Introduction of GB/T 223.5-2008
WARNING: The personnel using this Part of GB/T 223 shall have practical experiences in regular laboratory work. This Part does not point out all the possible safety problems. Users have the responsibility to take appropriate safety and health measures and also ensure meeting the conditions specified in relevant regulations of the State. 1 Scope This Part of GB/T 223 specifies the determination of acid-soluble silicon and total silicon content in steel and iron with reduced molybdosilicate spectrophotometric method. This Part is applicable to the determination of silicon content, the mass fraction of which is 0.010 %~1.00% in steel and iron. 2 Normative References The following standards contain provisions which, through reference in this part of GB/T 223, constitute provisions of this Part. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Part are encouraged to research whether the latest editions of these references are applied or not. For undated references, the latest edition of the normative document is applicable to this Part. GB/T 6379.1 “Accuracy(trueness and precision) of Measurement Methods and Results—Part 1: General Principles and Definitions” (GB/T 6379.12004; ISO 5725-1:1994, IDT) GB/T 6379.2 "Accuracy (Trueness and Precision) of Measurement Methods and Results-Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method" (GB/T 6379.2-2004, ISO 5725-2:1994, IDT) GB/T 20066 "Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition" (GB/T 20066-2006, ISO 14284: 1996, IDT) 3 Principles Dissolve the sample with sulfuric acid-nitric acid or hydrochloric acid-nitric acid in proper proportion and then fuse the acid insoluble residues with mix flux of sodium carbonate and boric acid. In weakly acidic solution, oxidized molybdosilicate (molybdosilicate yellow) is generated by silicic acid and molybdate. Increase the sulfuric acid concentration and add oxalic acid to eliminate the interference of phosphorus, arsenium and vanadium, ascorbic acid is adopted to carry out selective reduction and then molybdosilicate is reduced to blue reduced molybdosilicate (molybdosilicate blue). At 810 nm wavelength, spectrophotometric determination is carried out for blue reduced molybdosilicate.
Contents of GB/T 223.5-2008
Contents Foreword I 1 Scope 2 Normative References 3 Principles 4 Reagents and Materials 5 Instruments and Equipments 6 Sampling and Sample Preparation 7 Analysis Procedures 8 Expression of Results 9 Test Report Appendix A (Informative) Additional Information for Internationally Common Test Appendix B (Informative) Diagram of Precision Data
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Keywords:
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