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HYT169-2013 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.
HYT169-2013: Test method for bromide ion in seawater and brine. Volumetric analysis
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
HY/T 169-2013	209	Add to Cart	3 days	Test method for bromide ion in seawater and brine. Volumetric analysis	Valid

Similar standards

GB/T 33584.3 GB/T 33584.2 GB 18420.1 HY/T 179 HY/T 177 HY/T 176

Basic data

Standard ID: HY/T 169-2013 (HY/T169-2013)
Description (Translated English): Test method for bromide ion in seawater and brine. Volumetric analysis
Sector / Industry: Marine Industry Standard (Recommended)
Classification of Chinese Standard: Z17
Classification of International Standard: 07.060; 13.060
Word Count Estimation: 8,856
Quoted Standard: GB/T 6682; GB 12805; GB 12808
Regulation (derived from): On the approval of the State Oceanic Administration released " index system of marine economy " and 13 marine industry standard announcement; industry standard for filing Notice No. 1 of 2014 (No. 169 overall)
Issuing agency(ies): State Oceanic Administration
Summary: This standard specifies the volumetric method secretin given water, concentrated seawater and self-test Jing O ions in water, equipment, side given method, the results of the calculation and precision. This standard applies to the capacity of law side giv

HYT169-2013: Test method for bromide ion in seawater and brine. Volumetric analysis

---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.
Test method for bromide ion in seawater and brine.Volumetric analysis ICS 07.060;13.060 Z17 People's Republic of China Marine Industry Standard Volumetric method for the determination of bromide ion in sea water and brine Released on.2013-11-13 2014-05-01 Implementation Issued by the State Oceanic Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Tianjin Seawater Desalination and Comprehensive Utilization Research Institute of the State Oceanic Administration. This standard is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283). This standard was drafted. Tianjin Institute of Seawater Desalination and Comprehensive Utilization, State Oceanic Administration. The main drafters of this standard. Yao Ying, Wang Guoqiang, Zhang Huifeng, Cai Ronghua, Gao Shubao, Gao Chunjuan, Liu Wei, Zhang Yushan. Volumetric method for the determination of bromide ion in sea water and brine

1 Scope

This standard specifies the volumetric method for the determination of bromide ions in seawater, concentrated seawater and brine, as well as reagents, instruments, measurement methods, calculation of results and precision. density. This standard applies to volumetric determination of water samples with bromide ion content less than 6000mg/L. The detection limit of this standard is 0.57mg/L, and the lower limit of quantification is 2.28mg/L.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods GB 12805 Laboratory glass burette GB 12808 Laboratory glass instrument single mark pipette

3 Principle

In a water sample with a pH greater than or equal to 5.5 and less than or equal to 7.0, sodium hypochlorite quantitatively oxidizes bromide ions to bromate ions. The acid radical oxidation iodide ion is the elemental iodine, and the elemental iodine is titrated with the sodium thiosulfate standard titration solution to determine the amount of the elemental iodine to obtain the bromide ion content the amount. The reaction equation is as follows. Br- 3ClO →- BrO3- 3Cl- BrO3- 6I- 6H → 3I2 3H2O Br- I2 2S2O3 →2- 2I- S4O62-

4 reagent

Unless otherwise specified, only use analytical reagents. 4.1 Water. Distilled water or deionized water, which meets the requirements of Grade 3 water in GB/T 6682. 4.2 Calcium oxide (CaO). 4.3 Boric acid (H3BO3). 4.4 Potassium iodide (KI). 4.5 Hydrochloric acid solution (1 1). Measure 500mL concentrated hydrochloric acid, pour it into 500mL water and mix well, then cool to room temperature for later use. Operation in a fume hood. 4.6 Sodium hypochlorite solution (11). 500mL antifomin (sodium hypochlorite solution, available chlorine ≥10.0%), add 500mL water and mix Evenly, keep for 1 month below 18℃. Operation in a fume hood. 4.7 Sodium formate solution (0.2g/g). Weigh.200g of sodium formate and add 800g of water to dissolve it. If the solution is turbid, use after filtering. 4.8 Sodium thiosulfate standard titration solution [c(Na2S2O3)=0.1mol/L; c(Na2S2O3)=0.05mol/L; c(Na2S2O3)= 0.01mol/L] 4.8.1 Configuration ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of HYT169-2013_English be delivered?

Answer: Upon your order, we will start to translate HYT169-2013_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 HYT169-2013_English with my colleagues?

Answer: Yes. The purchased PDF of HYT169-2013_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.