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

GB/T 6730.12-2016 English PDF

Q: How long will the true-PDF of English version of GB/T 6730.12-2016 be delivered?

Upon your order, we will start to translate GB/T 6730.12-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically in 24 hours. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of GB/T 6730.12-2016_English with my colleagues?

Yes. The purchased PDF of GB/T 6730.12-2016_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.

Q: Should I purchase the latest version GB/T 6730.12-2016?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6730.12-2016 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.

US$78.00 · In stock
Delivery: <= 1 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 6730.12-2016: Iron ores -- Determination of aluminum content -- Chrome azurol S spectrophotometric method
Status: Valid

GB/T 6730.12: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6730.12-2016	78	Add to Cart	1 days	Iron ores -- Determination of aluminum content -- Chrome azurol S spectrophotometric method	Valid
GB/T 6730.12-1986	199	Add to Cart	2 days	Methods for chemical analysis of iron ores. The chrome azurol S photometric method for the determination of aluminium content	Obsolete

Similar standards

GB/T 6730.1 GB/T 6730.10 GB/T 6730.11 GB/T 6730.5 GB/T 6730.3 GB/T 6730.14

Basic data

Standard ID: GB/T 6730.12-2016 (GB/T6730.12-2016)
Description (Translated English): Iron ores -- Determination of aluminum content -- Chrome azurol S spectrophotometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D31
Classification of International Standard: 73.060.10
Word Count Estimation: 10,157
Date of Issue: 2016-12-13
Date of Implementation: 2017-09-01
Older Standard (superseded by this standard): GB/T 6730.12-1986
Regulation (derived from): National Standard Announcement No.67 of 2016
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

GB/T 6730.12-2016: Iron ores -- Determination of aluminum content -- Chrome azurol S 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.
Iron ores - Determination of aluminum content - Chrome azurol S spectrophotometric method ICS 73.060.10 D31 National Standards of People's Republic of China Replace GB/T 6730.12-1986 Determination of aluminum content of iron ore Photometric method Ironores-Determination ofaluminumcontent- 2016-12-13 released 2017-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

GB/T 6730 "iron ore" is divided into dozens of parts. This part is part 12 of GB/T 6730. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part of the GB/T 6730.12-1986 "iron ore chemical analysis method chrome azure S photometric determination of aluminum". This part with GB/T 6730.12-1986 In addition to editorial changes, the main technical changes are as follows. --- the standard name to "iron ore aluminum content determination of chrome azure S spectrophotometric method"; --- increase the warning, normative reference documents, test reports and so on; - modify the extraction separation to zinc-EDTA masking; --- the measurement range from 0.050% ~ 0.50% to 0.050% ~ 2.50%; --- use the "subtraction method" to correct the indicator and blank; The inter-laboratory precision tests were carried out, and the "allowable difference" was replaced by the statistical repeatability r and the reproducibility limit R. This part is made by China Iron and Steel Industry Association. This section is headed by the National Commission on Standardization of Iron Ore and Direct Reductive Iron (SAC/TC317). This part of the drafting unit. Wuhan Iron and Steel (Group) Company, Metallurgical Industry Information Standards Institute. The main drafters of this part. Guo Fang, Shen Ke, Lu Qi, Li Xiaojie, Xu Jianping, Chen Zhibin. This part of the previous version of the standard to replace the release of the situation. --- GB/T 6730.12-1986. Determination of aluminum content of iron ore Photometric method WARNING - Personnel using this section should have formal laboratory experience. This section does not indicate all possible security issues with the user Have the responsibility to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.

1 Scope

This part of GB/T 6730 specifies the determination of aluminum content by chrome azurol S spectrophotometry. This part applies to iron ore, iron concentrate, sintered ore and pellets in the determination of aluminum content, the determination of the range (mass fraction). 0.050% ~ 2.50%.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) - Part 1. General and definitions GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) - Part 2. Determination of standard measurement methods The basic method of sex and reproducibility GB/T 6682 Analytical laboratory water specifications and test methods Preparation of pre - dried samples for analysis of iron ore GB/T 6730.1 Metallurgical products - Chemical analysis - Spectrophotometric methods Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170 GB/T 10322.1 Iron Ore Sampling and Sample Preparation GB/T 12806 laboratory glass instrument single standard line capacity bottle GB/T 12807 Laboratory glass instruments - Index pipettes GB/T 12808 Laboratory glass instruments Single line suction pipette

3 principle

The sample was melted with a mixed flux and diluted with dilute hydrochloric acid. Zinc-EDTA masked iron, manganese and other ions, hydrogen peroxide masked titanium ions in 6 times In the methyl tetramine buffer system, aluminum and chrome azure S produce a magenta complex and measure the absorbance at 545 nm to determine the aluminum content.

4 reagent

Unless otherwise stated, only the reagents identified as analytical reagents and those of Class 3 and Grade 3 in accordance with GB/T 6682 are used in the analysis. Water or water equivalent to its purity. 4.1 mixed flux, take 2 parts of sodium carbonate and 1 part of boric acid grinding and mixing. 4.2 high purity ferric oxide, ≥ 99.95% (mass fraction). 4.3 Hydrochloric acid, 1 5. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 6730.12-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 6730.12-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically in 24 hours. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 6730.12-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 6730.12-2016_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.

Question 5: Should I purchase the latest version GB/T 6730.12-2016?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6730.12-2016 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.