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Position: Chinese Standard in English/GB/T 223.61-1988
GB/T 223.61-1988   Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content (English Version)
Standard No.: GB/T 223.61-1988 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 2500 words Price(USD):60.0 remind me the price change

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Implemented on:1989-2-1 Delivery: via email in 1 business day
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Standard No.: GB/T 223.61-1988
English Name: Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
Chinese Name: 钢铁及合金化学分析方法 磷钼酸铵容量法测定磷量
Chinese Classification: H11    Steel and iron alloy analysis method
Professional Classification: GB    National Standard
Issued by: MOMI
Issued on: 1988-2-5
Implemented on: 1989-2-1
Status: valid
Superseding:GB 223.3-1981
Language: English
File Format: PDF
Word Count: 2500 words
Price(USD): 60.0
Delivery: via email in 1 business day
1 Principle Dissolve the sample with oxidizing acid; at nitric acid acidity of 2.2mol/L, add ammonium molybdate to generate ammonium phosphomolybdate deposition; after filtering, dissolve with excessive standard sodium hydrate solution; taking dihydroxyphthalophenone solution as indicator, back-titrate the excessive sodium hydrate with dihydroxyphthalophenone solution till the pink just disappears (the end point) (about pH8). The general reaction formula of dissolving ammonium molybdate precipitation with sodium hydrate is as: (NH4)2H(PMo12O40)•H2O+240H-=HPO +12MoO +2NH +13H2O Arsenic of less than 100μg, tantalum <500μg, zirconium, vanadium or niobium <1mg, wolfram <8mg, titanium < 10mg and silicon < 20mg contained in the test solution, may not interfere the determination; exceeding the limits above, remove arsenic by hydrochloric acid and hydrobromic acid; mask zirconium, niobium, tantalum, titanium and silicon by fluohydric acid; reduce vanadium by hydroxylamine hydrochloride; remove wolfram (in ammonia solution at presence of EDTA) by beryllium carrier. 2 Reagents
GB/T 223.61-1988 is referred in:
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* GB/T 710-2008 Hot-rolled quality carbon structural steel sheets and strips
* GB/T 8749-2008 Hot-rolled quality carbon structural steel strips
* GB 3087-2008 Seamless Steel Tubes for Low and Medium Pressure Boiler
* GB/T 4171-2008 Atmospheric corrosion resisting structural steel
* GB/T 11263-2005 The Hot-rolled H and Cut T Section
* GB/T 3091-2008 Welded Steel Pipes for Low Pressure Liquid Delivery
* GB/T 3078-2008 Quality structural steel cold drawn bars
* GB/T 6478-2001 Steels for cold heading and cold extruding
* GB/T 5216-2004 Structural steels subject to end-quench hardenability requirments
* 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 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 701-2008 Hot Rolled Low Carbon Steel Wire Rods
* GB/T 4240-2009 Stainless steel wires
* 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 3087-2008 Seamless Steel Tubes for Low and Medium Pressure Boiler
* GB/T 711-2008 Hot-rolled Quality Carbon Structural Steel Plates, Sheets and Wide Strips
* GB/T 4171-2008 Atmospheric corrosion resisting structural steel
* 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 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 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 3078-2008 Quality structural steel cold drawn bars
* GB/T 8749-2008 Hot-rolled quality carbon structural steel strips
* GB/T 22345-2008 Grades of fresh chinese jujube fruit
* 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
* 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/T 8163-2008 Seamless steel tubes for liquid service
* GB/T 1298-2008 Carbon Tool Steels
* GB/T 8731-2008 Free-cutting structural steel
* GB/T 4172-2000 Atmospheric corrosion resisting steel for welded structure
* GB/T 24186-2009 High strength abrasion resistant steel plates for construction machine
* GB/T 5216-2014 Structural steels with specified hardenability bands
* YB 4104-2000 Steel plates for high rise building structure
* YB/T 4149-2006 Continuously cast ruond billet for seamless steel tube rolling
* GB/T 1221-2007 Heat-resistant steel bars
* 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 20009.1-2010 Welding Material for Pressurized Water Reactor Nuclear Power Plants - Part 1: Carbon Steel Covered Electrodes for Classes 1, 2, 3 Components
* 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 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
* TB/T 3010-2001 Ordering Technical Specifications for High-carbon Chromium Bearing Steel of Rolling Bearings for Railway Vehicle
* NB/T 20009.7-2012 Welding Material for Pressurized Water Reactor Nuclear Power Plants-Part 7: Stainless Steel Wires and Filler Rods for Classes 1, 2, 3 Components
* GB/T 21237-2007 Wide and heavy plates for line pipe of petroleum and natural gas
* TB/T 447-2004 Technical specification for the solid manganese steel frogs
* YB/T 5055-2014 Crane rails
* GB/T 1299-2014 Tool and mould steels
*GB/T 19879-2005 Steel plates for building structure
*GB/T 18254-2000 High-carbon chromium bearing steel
*GB/T 4171-2000 Superior atmospheric corrosion resisting structural steel
*YB/T 5058-2005 Cold-rolled spring and tool steel strips
*GB/T 13793-2016 Straight seam welded steel pipe
*YB/T 4155-2006 Hot-rolled round carbon steel bars and rods for standard parts
*GB/T 1234-2012 High resistance alloys for electrical heating
*GB/T 4240-2019 Stainless steel wires
*YB/T 091-2005 Forging(rolling) steel grinding balls
Code of China
Standard
GB/T 223.61-1988   Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content (English Version)
Standard No.GB/T 223.61-1988
Statusvalid
LanguageEnglish
File FormatPDF
Word Count2500 words
Price(USD)60.0
Implemented on1989-2-1
Deliveryvia email in 1 business day
Detail of GB/T 223.61-1988
Standard No.
GB/T 223.61-1988
English Name
Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
Chinese Name
钢铁及合金化学分析方法 磷钼酸铵容量法测定磷量
Chinese Classification
H11
Professional Classification
GB
ICS Classification
Issued by
MOMI
Issued on
1988-2-5
Implemented on
1989-2-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB 223.3-1981
Language
English
File Format
PDF
Word Count
2500 words
Price(USD)
60.0
Keywords
GB/T 223.61-1988, GB 223.61-1988, GBT 223.61-1988, GB/T223.61-1988, GB/T 223.61, GB/T223.61, GB223.61-1988, GB 223.61, GB223.61, GBT223.61-1988, GBT 223.61, GBT223.61
Introduction of GB/T 223.61-1988
1 Principle Dissolve the sample with oxidizing acid; at nitric acid acidity of 2.2mol/L, add ammonium molybdate to generate ammonium phosphomolybdate deposition; after filtering, dissolve with excessive standard sodium hydrate solution; taking dihydroxyphthalophenone solution as indicator, back-titrate the excessive sodium hydrate with dihydroxyphthalophenone solution till the pink just disappears (the end point) (about pH8). The general reaction formula of dissolving ammonium molybdate precipitation with sodium hydrate is as: (NH4)2H(PMo12O40)•H2O+240H-=HPO +12MoO +2NH +13H2O Arsenic of less than 100μg, tantalum <500μg, zirconium, vanadium or niobium <1mg, wolfram <8mg, titanium < 10mg and silicon < 20mg contained in the test solution, may not interfere the determination; exceeding the limits above, remove arsenic by hydrochloric acid and hydrobromic acid; mask zirconium, niobium, tantalum, titanium and silicon by fluohydric acid; reduce vanadium by hydroxylamine hydrochloride; remove wolfram (in ammonia solution at presence of EDTA) by beryllium carrier. 2 Reagents
Contents of GB/T 223.61-1988
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