Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 6730.71-2014 English PDF

Q: How long will the true-PDF of English version of GB/T 6730.71-2014 be delivered?

Upon your order, we will start to translate GB/T 6730.71-2014_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.

Q: Can I share the purchased PDF of GB/T 6730.71-2014_English with my colleagues?

Yes. The purchased PDF of GB/T 6730.71-2014_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. 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.

US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 6730.71-2014: Iron ores -- Determination of acid-soluble iron (II) content -- Titrimetric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6730.71-2014	259	Add to Cart	3 days	Iron ores -- Determination of acid-soluble iron (II) content -- Titrimetric method	Valid

Similar standards

GB/T 6730.76 GB/T 6730.72 GB/T 6730.65 GB/T 6730.73 GB/T 6730.63 GB/T 6730.64

Basic data

Standard ID: GB/T 6730.71-2014 (GB/T6730.71-2014)
Description (Translated English): Iron ores -- Determination of acid-soluble iron (II) content -- Titrimetric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D31
Classification of International Standard: 73.060.10
Word Count Estimation: 11,179
Date of Issue: 6/9/2014
Date of Implementation: 1/1/2015
Quoted Standard: GB/T 6379.2; GB/T 6682; GB/T 6730.1; GB/T 8170; GB/T 10322.1; GB/T 12805; GB/T 24189; GB/T 24515; ISO 4791-1; GB/T 12806; GB/T 12808
Adopted Standard: ISO 9035-1989, MOD
Regulation (derived from): National Standards Bulletin No. 11 of 2014
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 determination of iron content titration. This Standard applies to the determination of natural and processed ferrous iron content, the measurement range (mass fraction): 0. 2% - 28. 0%. This method is only adapted to GB/T 24515

GB/T 6730.71-2014: Iron ores -- Determination of acid-soluble iron (II) content -- Titrimetric 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.
Iron ores. Determination of acid-soluble iron (II) content. Titrimetric method ICS 73.060.10 D31 National Standards of People's Republic of China Determination of acid-soluble iron content of ferrous titration Ironores-Determinationofacid-solubleiron (Ⅱ) content- (ISO 9035. 1989, MOD) Issued on. 2014-06-09 2015-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This is Part 71 GB/T 6730's. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses redrafted law revision using ISO 9035. 1989 "acid soluble ferrous iron ore Determination titration." This part of ISO 9035. 1989 and its main technical difference between the following reasons. --- In accordance with the requirements of normative references, the references to normative documents with the corresponding national standards instead of the corresponding international standard; --- Revised reduction titration method so that the method is easy to operate; --- Increasing the blank test, with the deduction of the blank test analysis results more reasonable; --- Re synergy test method for determining precision, making precision reflect the actual situation of the process; --- Redefined the detection range, the detection range reflect the actual situation of the process; --- Modified "8.2.3 Calculation of the final result," the statement, more in line with our usage; --- Added "oxide conversion factor 8.3", making it easier when conducting oxide conversion. This part is proposed by the China Iron and Steel Association. This part of the National Iron ore and direct reduced iron Standardization Technical Committee (SAC/TC317) centralized. This section was drafted by. People's Republic of China Tianjin Entry-Metallurgical Industry Information Standards Institute. The main drafters of this section. From Madrid, Gu Songhai, Li Yi, Song Yi, newly Hood, Chenzi Bin. Determination of acid-soluble iron content of ferrous titration Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant state laws and regulations.

1 Scope

GB/T 6730 provisions of this part of the determination of iron content titration. This section applies to the determination of natural and processed iron ore ferrous content measurement range (mass fraction). 0.2% to 28.0%. This method is only suitable for GB/T 24515 or GB/T 24189 stipulated in reducing the ore used in the test, the sulfur content does not apply to large Than 0.3%, or more than 5.0% of free carbon-containing ore. Tests showed that reducing test method precision to meet the requirements, the acid-insoluble residue Slag can be ignored.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat Of the basic methods of reproduction (GB/T 6379.2-2004, ISO 5725-2.1994, IDT) GB/T 6682 Water Analysis Laboratory specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 6730.1 Methods for chemical analysis of iron pre-drying of the sample preparation (GB/T 6730.1-1986, idt ISO 7764 with. 1985) GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment GB/T 10322.1 iron ore sampling and sample preparation method (GB/T 10322.1-2000, ISO 3082.1998, IDT) GB/T 12805 Laboratory glassware burette (GB/T 12805-2011, ISO 385.2005, NEQ) GB/T 12806 Laboratory glassware single marking flask (GB/T 12806-2011, ISO 1042.1998, NEQ) GB/T 12808 standard laboratory glassware single line pipette (GB/T 12808-1991, eqv ISO 648. 1977) Reducing measurement (GB/T 24189-2009, ISO GB/T 24189 blast furnace iron ore with a final reduction index represented 7215.2007, IDT) GB/T 24515 blast furnace iron ore reducing the rate determined by the reduction represented (GB/T 24515-2009, ISO 4695. 2007, IDT) Basic vocabulary ISO 4791-1 laboratory equipment glass, porcelain or vitreous silica products, instruments Part 1. Instrument name (Laboratoryapparatus- Vocabularyrelatingtoapparatusmadeessentialyfromglass, porcelainor vitreoussilica-Part 1. Namesforitemsofapparatus) Principle 3 In an inert atmosphere, the sample was dissolved in hydrochloric acid, plus parathion mixed acid, diluted with water. With diphenylamine sulfonate as indicator, with standard potassium dichromate Quasi titration titration, determination of iron content. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 6730.71-2014_English be delivered?

Answer: Upon your order, we will start to translate GB/T 6730.71-2014_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 6730.71-2014_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 6730.71-2014_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+ countries

Question 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 Sales@ChineseStandard.net. 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.