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GB/T 29340-2012 English PDF

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US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 29340-2012: Analysis of water used in boil and cooling system -- Determination of chloride -- Ammonium thiocyanate titration method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29340-2012	139	Add to Cart	3 days	Analysis of water used in boil and cooling system -- Determination of chloride -- Ammonium thiocyanate titration method	Valid

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Basic data

Standard ID: GB/T 29340-2012 (GB/T29340-2012)
Description (Translated English): Analysis of water used in boil and cooling system -- Determination of chloride -- Ammonium thiocyanate titration method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G76
Classification of International Standard: 13.060.50; 71.040.40
Word Count Estimation: 6,648
Quoted Standard: GB/T 603; GB/T 6682
Regulation (derived from): National Standards Bulletin No. 41 of 2012
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 boiler water and cooling water Determination of chloride, thiocyanate by titration. This standard applies to natural water, boiler water and cooling water chloride content of 5 mg/L-100 mg/L determination of chloride content gr

GB/T 29340-2012: Analysis of water used in boil and cooling system -- Determination of chloride -- Ammonium thiocyanate titration 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.
Analysis of water used in boil and cooling system. Determination of chloride. Ammonium thiocyanate titration method ICS 13.060.50,71.040.40 G76 National Standards of People's Republic of China Boiler water and cooling water analysis The determination of chloride ammonium thiocyanate titration Issued on. 2012-12-31 2013-08-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of Chemical Water Treatment Chemicals Branch (SAC/TC63/SC5) centralized. This standard was drafted. Guangzhou City Special Pressure Equipment Inspection and Research Institute, Henan clear Water Technology Co., Ltd., Shenzhen City, measuring seized Measured Co., CNOOC Tianjin Chemical Research & Design Institute, China Petroleum and Chemical Corporation Beijing North Branch of the Academy of Yanshan, Jiashan Strait Water purification Ling Chemical Co., Ltd., Chongqing University. The main drafters of this standard. Yang Lin, Wang Zhiqing, Wan Feng, Zhu Zhuanjun, Qin Huimin, Shen strong Xiang, Du Yuhui, Yu Fen, ZHENG Huai-li. Boiler water and cooling water analysis The determination of chloride ammonium thiocyanate titration WARNING. Strong acids are used in this standard, alkali corrosive, should be used to avoid inhalation or contact with the skin. Splashed on him immediately with Plenty of water, seek immediate medical attention should be serious.

1 Scope

This standard specifies the boiler water and cooling water - Determination of chloride, ammonium thiocyanate titration. This standard applies to natural water, boiler water and chloride content of the circulating cooling water to 5mg/L ~ 100mg/L determination chloride Content greater than 100mg/L water samples should be measured after dilution.

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 603 chemical reagent test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)

3 General

The reagents used in this standard, unless otherwise specified, shall use analytical reagent and in line with GB/T 6682 stipulated two of water. In the absence of special note, according to the provisions of GB/T 603 test preparation needed preparations and products.

4 Method summary

Measured water acidified with nitric acid, and then adding an excess of standard solution of silver nitrate, and Ag generation so Cl- all silver chloride (AgCl) Shen Lakes, excess Ag with ammonium thiocyanate (NH4SCN) back titration standard solution, choose ferric ammonium alum [NH4Fe (SO4) 2] as an indicator when it reaches Titration end point, SCN- and Fe3 form a red complex, the solution was discolored, is the titration end point. Cl- Ag → AgCl ↓ (white) SCN- Ag → AgSCN ↓ (white) SCN- Fe3 → FeSCN2 (red complex) In an excess of silver nitrate (AgNO3) standard solution volume, deduct an amount equal amounts consumed SCN-, you can calculate the water C1- content.

5 Reagents and materials

5.1 nitrate. 5.2 sulfuric acid solution. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 29340-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 29340-2012_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 29340-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 29340-2012_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.