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YS/T 574.4-2009 English PDF

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US$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 574.4-2009: Methods for chemical analysis of zirconium powder for electro-vacuum uses. The molybdenum blue spectrophotometric method for determination of phosphorus
Status: Valid

YS/T 574.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 574.4-2009	169	Add to Cart	3 days	Methods for chemical analysis of zirconium powder for electro-vacuum uses. The molybdenum blue spectrophotometric method for determination of phosphorus	Valid
YS/T 574.4-2006	199	Add to Cart	2 days	Chemical analysis of zirconium powder for electro-vacuum uses The molybdenum blue photometric method for determination of phosphorus	Obsolete

Similar standards

GB/T 4295 GB/T 7160 YS/T 798 YS/T 574.3 YS/T 574.5 YS/T 574.1

Basic data

Standard ID: YS/T 574.4-2009 (YS/T574.4-2009)
Description (Translated English): Methods for chemical analysis of zirconium powder for electro-vacuum uses. The molybdenum blue spectrophotometric method for determination of phosphorus
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H71
Classification of International Standard: 77.120
Word Count Estimation: 6,639
Date of Issue: 2009-12-04
Date of Implementation: 2010-06-01
Older Standard (superseded by this standard): YS/T 574.4-2006
Regulation (derived from): MIIT [2009] No. 66
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the zirconium powder Determination of phosphorus content. This standard applies to electric vacuum with zirconium powder Determination of phosphorus content. Measuring range (mass fraction): 0. 001% to 0. 010 %

YS/T 574.4-2009: Methods for chemical analysis of zirconium powder for electro-vacuum uses. The molybdenum blue spectrophotometric method for determination of phosphorus

---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.
Methods for chemical analysis of zirconium powder for electro-vacuum uses.The molybdenum blue spectrophotometric method for determination of phosphorus ICS 77.120 H71 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 574.4-2006 Electric vacuum Chemical analysis of zirconium powder Spectrophotometric determination of phosphorus content - Molybdenum blue spectrophotometric 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 574 "Methods for chemical analysis of zirconium powder for electro - vacuum" is divided into eight sections. --- Determination of the total amount of zirconium and zirconium active YS/T 574.1 electric vacuum zirconium powder - Gravimetric method; --- YS/T 574.2 electric vacuum Chemical analysis of zirconium powder sulfosalicylic acid spectrophotometric determination of iron content; --- Determination of silicon content YS/T 574.3 electric vacuum chemical analysis of zirconium powder Molybdenum blue spectrophotometric method; --- YS/T 574.4 electric vacuum zirconium powder chemical analysis of molybdenum blue spectrophotometric determination of phosphorus content; Determination of calcium and magnesium content --- YS/T 574.5 electric vacuum zirconium powder chemical analysis by inductively coupled plasma atomic emission spectrometry; --- YS/T 574.6 electric vacuum zirconium powder chemical analysis of Chromium Azure S spectrophotometric determination of aluminum content; --- YS/T 574.7 electric vacuum Chemical analysis of zirconium powder with methylene blue spectrophotometric determination of sulfur content; Determination of the amount of hydrogen heating thermal conductivity method --- YS/T 574.8 electric vacuum Chemical analysis of zirconium powder with an inert atmosphere. This section YS/T Part 4 574. The partial replacement of YS/T 574.4 "power vacuum spectrophotometric determination of zirconium powder with a chemical analysis of molybdenum blue phosphor" (formerly GB/T 3256.4- 1982). This portion of YS/T 574.4-2006 compared to the main changes are as follows. --- Complements the precision and quality assurance and control provisions. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This in part by Western Metal Materials Co., Ltd., China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This part by CITIC Jinzhou Ferroalloy Co., Ltd., Northwest Nonferrous Metal Research Institute participated in the drafting. The main drafters of this section. Zhou Jinzhi, Yehong Chuan, Yang Jun Hong, Li Bo, Anbao Lan, Wang Cuixiang. This part of the standard replaces the previous editions are. --- YS/T 574.4-2006. Electric vacuum Chemical analysis of zirconium powder Spectrophotometric determination of phosphorus content - Molybdenum blue spectrophotometric

1 Scope

This section provides the determination of phosphorus content in zirconium powder. This section applies to electric vacuum measuring phosphorus content of zirconium powder. Measurement range (mass fraction). 0.001% to 0.010%.

2 principle of the method

Sample with nitric acid, hydrofluoric acid decomposition, masking boric acid fluoride, phosphoric acid with potassium permanganate oxidation of the sub-phosphate. In nitric acid medium, phosphorus Acid ions with ammonium molybdate forming yellow phosphomolybdic heteropoly acid, n-butanol - a mixed solution of chloroform extraction, stannous chloride reduction of the phosphorus molybdenum yellow phosphorus Molybdenum blue and back-extracted into the aqueous phase. Spectrophotometer measuring the absorbance at 700nm. Zirconium matrix without interference. Test solution containing arsenic, titanium, niobium each 1000μg not interfere with the determination. Copper, nickel do not interfere with each of the following test 800μg set.

3 Reagents

3.1 hydrofluoric acid (ρ1.13g/mL), pure class distinctions. 3.2 hydrochloride (ρ1.19g/mL). 3.3 saturated solution of boric acid. 3.4 nitric acid (1 + 1). nitrate (ρ1.42g/mL) boiling 3min ~ 5min, formulated after the flooding exhausted nitrogen oxides. 3.5 potassium permanganate solution (40g/L). 3.6 sodium nitrite solution (10g/L). 3.7 ammonium molybdate solution (10g/L). 3.8 stannous chloride solution (10g/L). Weigh 1.0g of stannous chloride in a dry beaker, added 8mL hydrochloric acid (3.2) dissolved, Diluted with water to 100mL, and mix. The time is now equipped with. 3.9 n-butanol - chloroform mixed solution (1 + 3). 3.10 P standard stock solution. Weigh 0.4394g advance at 105 ℃ ~ 110 ℃ drying 2h potassium dihydrogen phosphate (excellent pure) placed 250mL beaker, dissolved in water and transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution contains per milliliter 100μg phosphorus. 3.11 Phosphorus standard solution. Pipette 10.00mL phosphorus standard stock solution (3.10), placed in 100mL volumetric flask, dilute to the mark, Mix well. This solution containing 10μg per ml of phosphorus.

4 Instrument

Spectrophotometer. Step 5 Analysis 5.1 Sample Weigh 0.20g sample, accurate to 0.0001g. 5.2 blank test Along with sample blank test. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 574.4-2009_English be delivered?

Answer: Upon your order, we will start to translate YS/T 574.4-2009_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 574.4-2009_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 574.4-2009_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 574.4-2009?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 574.4-2009 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.