|
US$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 4699.3-2007: Ferrochromium, silicon chromium and nitrogen-bearing ferrochromium -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
Status: Valid GB/T 4699.3: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4699.3-2007 | English | 239 |
Add to Cart
|
3 days [Need to translate]
|
Ferrochromium, silicon chromium and nitrogen-bearing ferrochromium -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
| Valid |
GB/T 4699.3-2007
|
| GB/T 4699.3-1984 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Methods for chemical analysis of silicochromium--The molybdenum blue photometric method for the determination of phosphorus content
| Obsolete |
GB/T 4699.3-1984
|
PDF similar to GB/T 4699.3-2007
Basic data | Standard ID | GB/T 4699.3-2007 (GB/T4699.3-2007) | | Description (Translated English) | Ferrochromium, silicon chromium and nitrogen-bearing ferrochromium -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H11 | | Classification of International Standard | 77.100 | | Word Count Estimation | 9,917 | | Date of Issue | 2007-10-25 | | Date of Implementation | 2008-04-01 | | Older Standard (superseded by this standard) | GB/T 5687.3-1985; GB/T 4699.3-1984 | | Regulation (derived from) | China National Standard Approval Announcement2007 No.12 (Total No.112) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the secret blue spectrophotometry and phosphorus relative phase blue spectrophotometric method-Determination of phosphorus content. This section applies to chromium iron, determination of silicon nitride ferrochrome and chrome phosphorus content, vacuum micro- carbon ferrochrome. Secret blue spectrophotometric determination of phosphorus phase range (mass fraction): 0. 008%-0. 080%, platinum blue spectrophotometric measurement range (mass fraction): <0. 15 %. | GB/T 4699.3-2007: Ferrochromium, silicon chromium and nitrogen-bearing ferrochromium -- Determination of phosphorus content -- Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ferrochromium, silicochromium and nitrogen-bearing ferrochromium. Determination of phosphorus content. Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
ICS 77.100
H11
National Standards of People's Republic of China
Replacing GB/T 4699.3-1984, GB/T 5687.3-1985
Chromium iron, chrome and silicon nitride ferrochrome
Determination of phosphorus content
Bismuth phosphorus molybdenum blue spectrophotometric method and the molybdenum blue spectrophotometric method
Posted 2008-04-01 2007-10-25 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This section GB/T 4699 is to GB/T 4699.3-1984 "Determination of silicon alloy chemical analysis of molybdenum blue phosphorus content"
And GB/T 5687.3-1985 "Methods for chemical analysis of ferrochromium - The molybdenum blue spectrophotometric determination of phosphorus content," the integration of amendments.
This section contains bismuth phosphorus molybdenum blue spectrophotometric method and the molybdenum blue spectrophotometric determination of two ferrochrome, chrome silicon nitride ferrochrome phosphorus content points
Analytical methods.
This Part replaces GB/T 4699.3-1984 "Determination of silicon alloy chemical analysis of molybdenum blue phosphorus content" and
GB/T 5687.3-1985 "the amount of ferrochromium - Determination of phosphorus chemical analysis of molybdenum blue."
This part of GB /4699.3-1984 GB/T 5687.3-1985 compared to the main changes and T. the new addition of bismuth phosphomolybdate blue spectrophotometric
This part is proposed by the China Iron and Steel Association.
This section is under the jurisdiction of Metallurgical Industry Information Standards Institute.
This section is drafted. Sichuan Investment Emei Ferroalloy (Group) Co., Ltd.
The main drafters of this section. should Tang Hua, Fang Yan.
This part of the standard replaces the previous editions are.
--- GB/T 4699.3-1984;
--- GB/T 5687.3-1985.
Chromium iron, chrome and silicon nitride ferrochrome
Determination of phosphorus content
Bismuth phosphorus molybdenum blue spectrophotometric method and the molybdenum blue spectrophotometric method
Warning --- Use this section shall be a person experiences regular laboratory work. This section does not point out all possible security asked
question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
GB/T 4699 provisions of this part of the bismuth phosphorus molybdenum blue spectrophotometric method and the molybdenum blue spectrophotometric determination of phosphorus content.
This section applies to chromium iron, vacuum micro-carbon ferrochrome, ferrochrome and silicon nitride was measured phosphorus content of chromium alloy, bismuth phosphorus molybdenum blue spectrophotometry
Given range (mass fraction). 0.008% - 0.080%; molybdenum blue spectrophotometric measurement range (mass fraction). < 0.15%.
2 Normative references
The following documents contain provisions which, through this part of GB/T 4699 in the reference in terms of this section. For dated references
Documents, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Research into whether the parties to the agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 4010 alloy chemical analysis and preparation of samples
Method 3 a bismuth phosphomolybdate blue spectrophotometry
3.1 Principle
Samples with hydrochloric acid - hydrogen peroxide or with nitric acid - hydrofluoric acid decomposition of perchlorate in the state smoke, play with hydrochloric acid chromium; or anhydrous carbonate
Sodium - sodium peroxide mixed flux melt decomposition. In sulfuric acid, sodium thiosulfate reducing high arsenic, phosphorus and bismuth nitrate, ammonium molybdate form three
Yuan complex, forming bismuth phosphorus molybdenum blue by ascorbic reducing phosphorus, measured absorbance at 700nm wavelength spectrophotometer.
3.2 Reagents and materials
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or its equivalent purity water.
3.2.1 sodium peroxide, solid.
3.2.2 anhydrous sodium carbonate solids.
3.2.3 perchloric acid, ρ1.67g/mL.
3.2.4 hydrochloric acid, ρ1.19g/mL.
3.2.5 Hydrogen peroxide, ρ1.10g/mL, pure class distinctions.
3.2.6 nitrate, ρ1.42g/mL.
3.2.7 hydrofluoric acid, ρ1.15g/mL.
3.2.8 sulfuric acid, 1 + 1.
3.2.9 sulfate, 1 + 2
3.2.10 sodium sulfite solution, 100g/L. Weigh 100g of anhydrous sodium sulfite, dissolved in water, diluted with water to 1000mL.
3.2.11 sodium thiosulfate solution, 5g/L. 1L containing 10g of anhydrous sodium sulfite, formulated with time.
3.2.12 bismuth nitrate solution, 30g/L. Weigh 30g of bismuth nitrate [Bi (No3) 3 · 5H2O], was dissolved in 100mL nitrate (1.42g/L)
In until completely dissolved by adding 900mL water, 4g urea, and mix.
3.2.13 ammonium molybdate solution, 33g/L. Weigh 33g of ammonium molybdate [(NH4) 6Mo7O24 · 4H2O], placed in 400mL beaker, add
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4699.3-2007_English be delivered?Answer: Upon your order, we will start to translate GB/T 4699.3-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 4699.3-2007_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 4699.3-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 4699.3-2007?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4699.3-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|