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YS/T 535.4-2009 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 535.4-2009: Chemical analysis methods of sodium fluoride. Part 4: Determination of iron content. 1, 10-phenanthroline spectrophotometric method

YS/T 535.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 535.4-2009	209	Add to Cart	3 days	Chemical analysis methods of sodium fluoride. Part 4: Determination of iron content. 1, 10-phenanthroline spectrophotometric method
YS/T 535.4-2006	199	Add to Cart	2 days	Methods for chemical analysis of sodium fluoride The 1, 10-phenanthroline spectrophotometric method for the determination of iron content	Obsolete

Similar standards

YS/T 581.15 GB/T 1425 GB/T 351 YS/T 535.11 YS/T 535.2 YS/T 535.10

Basic data

Standard ID: YS/T 535.4-2009 (YS/T535.4-2009)
Description (Translated English): Chemical analysis methods of sodium fluoride. Part 4: Determination of iron content. 1, 10-phenanthroline spectrophotometric method
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H21
Classification of International Standard: 71.060.50
Word Count Estimation: 6,662
Date of Issue: 2009-12-04
Date of Implementation: 2010-06-01
Older Standard (superseded by this standard): YS/T 535.4-2006
Quoted Standard: YS/T 535.10-2009
Regulation (derived from): MIIT [2009] No. 66
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the amount of sodium iron (expressed in ferric oxide) measurement method. This standard applies to the amount of iron in sodium fluoride (expressed in ferric oxide) determination. Measuring range (mass fraction): 0. 02 % ~ 0. 60%.

YS/T 535.4-2009: Chemical analysis methods of sodium fluoride. Part 4: Determination of iron content. 1, 10-phenanthroline 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.
Chemical analysis methods of sodium fluoride.Part 4. Determination of iron content.1, 10-phenanthroline spectrophotometric method ICS 71.060.50 H21 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 535.4-2006 Methods for chemical analysis of sodium fluoride Part 4. Determination of iron content Phenanthroline spectrophotometry Posted 2009-12-04 2010-06-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 535 "chemical analysis of sodium fluoride" is divided into 10 parts. --- Part 1. Determination of the weight of water in the wet method; --- Part 2. Determination of distillation of fluorine content - thorium nitrate titration volumetric method; --- Part 3. Determination of silicon content - Molybdenum blue spectrophotometric method; --- Part 4. Determination of iron content phenanthroline spectrophotometry; --- Part 5. Determination of soluble sulfate turbidity method; --- Part 6. Determination of carbonate content - Gravimetric method; --- Part 7. Determination of acidity and law; --- Part 8. Water-insoluble content - Gravimetric method; --- Part 9. Determination of chlorine turbidity method; --- Part 10. Preparation and storage of test samples. This is Part 4. The partial replacement of YS/T 535.4-2006 (formerly GB/T 8158.4-1987). This part is YS/T 535.4-2006 "Methods for chemical analysis of sodium fluoride phenanthroline spectrophotometric determination of iron content," the amendment and YS/T 535.4-2006 increased compared to the like precision and quality assurance and control content. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This part of the Fushun Aluminum Co., Ltd., China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This part of the Fushun Aluminum Co. drafted. The main drafters of this section. Liu Shulan, Yang Limei, sheets side by side. This part of the standard replaces the previous editions are. --- YS/T 535.4-2006 (formerly GB/T 8158.4-1987). Methods for chemical analysis of sodium fluoride Part 4. Determination of iron content Phenanthroline spectrophotometry

1 Scope

This section provides sodium fluoride iron content (expressed as ferric oxide) measurement method. This section applies to iron content (expressed as ferric oxide) measured in the sodium fluoride. Measurement range (mass fraction). 0.02% ~ 0.60%.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section. YS/T 535.10-2009 Methods for chemical analysis of sodium fluoride - Part 10. Sample preparation and storage

3 Method summary

Sample decomposition with alkali fusion with hydroxylamine hydrochloride iron (Ⅲ) reduction, then in pH3.5 ~ 4.5 iron (Ⅱ) with phenanthroline formed Colored complex in a spectrophotometer at a wavelength of 510nm absorbance measurements.

4 Reagents

4.1 anhydrous sodium carbonate. 4.2 boric acid. 4.3 nitric acid (1 + 1). 4.4 HCl (1 + 1). 4.5 hydroxylamine hydrochloride (100g/L). 4.6 phenanthroline solution (2.5g/L). 4.7 buffer solution. 272g of water was dissolved in 500mL sodium acetate trihydrate, glacial acetic acid added 240mL (ρ1.05g/mL approximately 17.4moL/L), diluted to 1L, and mix. 4.8 sodium acetate solution (500g/L). 4.9 acetic acid (19 + 1). 4.10 iron standard stock solution. Choose one of the following methods can be formulated. 4.10.1 Weigh 0.982g ferrous ammonium sulfate hexahydrate [Fe (NH4) 2 (SO4) 2 · 6H2O] in 100mL beaker, dissolved in water, add Into 20mL sulfuric acid solution (ρ1.84g/mL), transferred to 1L volumetric flask, dilute with water to volume, and mix. This standard stock solution 1mL containing 0.2mg ferric oxide. 4.10.2 Weigh 0.2000g pre-ignition at 600 ℃, and cooled in the dryer ferric oxide (purity 99.9%), placed 100mL beaker, add 10mL of hydrochloric acid (ρ1.19g/mL), and slowly heated to dissolve, cooled, transferred to 1L volumetric flask, diluted with water To the mark, and mix. This standard stock solution 1mL containing 0.2mg ferric oxide. 4.11 Iron standard solution. Pipette 50.0mL iron standard solution (4.10), placed in 1L volumetric flask, dilute with water to volume, and mix. This standard Standard solution 1mL containing 0.10mg of iron oxide, the use of the preparation. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 535.4-2009_English be delivered?

Answer: Upon your order, we will start to translate YS/T 535.4-2009_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 YS/T 535.4-2009_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 535.4-2009_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 YS/T 535.4-2009?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 535.4-2009 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.