GB/T 34550.1-2017 English PDF

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GB/T 34550.1-2017: Method for evaluation of cooling seawater treatment agents -- Part 1: Determination of corrosion inhibition performance
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34550.1-2017	199	Add to Cart	3 days	Method for evaluation of cooling seawater treatment agents -- Part 1: Determination of corrosion inhibition performance	Valid

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Basic data

Standard ID: GB/T 34550.1-2017 (GB/T34550.1-2017)
Description (Translated English): Method for evaluation of cooling seawater treatment agents -- Part 1: Determination of corrosion inhibition performance
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A29
Classification of International Standard: 07.060; 77.060
Word Count Estimation: 10,191
Date of Issue: 2017-09-29
Date of Implementation: 2018-01-01
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 34550.1-2017: Method for evaluation of cooling seawater treatment agents -- Part 1: Determination of corrosion inhibition performance

---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.
Method for evaluation of cooling seawater treatment agents-Part 1. Determination of corrosion inhibition performance ICS 07.060; 77.060 A29 National Standards of People's Republic of China Evaluation of performance of seawater cooling water treatment chemicals Part 1. Determination of corrosion inhibition Part 1.Determinationofcorrosioninhibitionperformance 2017-09-29 Posted 2018-01-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 principle 1 4 Reagents and materials 1 5 equipment 2 6 Test conditions 3 7 Test Procedure 3 Representation and calculation of results 4 9 The maximum allowable error 4 10 Test Report 4 Appendix A (Normative) Corrosion of the sample surface cleaning 6

Foreword

GB/T 34550 "seawater cooling water treatment agent performance evaluation method" is divided into four parts. --- Part 1. Determination of corrosion inhibition; --- Part 2. Determination of scale inhibition; --- Part 3. Determination of inhibitory properties of bacteria and algae; --- Part 4. Dynamic simulation test. This section GB/T 34550 Part 1. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by the State Oceanic Administration. This part of the National Marine Standardization Technical Committee (SAC/TC283) centralized. This part of the drafting unit. State Oceanic Administration Tianjin Institute of seawater desalination and utilization. The main drafters of this section. Wang Weizhen, Fan Lihua, Korea Lily, Hou Xiang Yu, Cui Zhendong, Wang Jing, high-rich, Yin Jianhua. Evaluation of performance of seawater cooling water treatment chemicals Part 1. Determination of corrosion inhibition Caution --- The strong acids and bases used in this standard are corrosive and should not be inhaled or come into contact with skin during use. Splashed on the body should be immediately Flush with plenty of water, serious illness should seek medical treatment immediately.

1 Scope

GB/T 34550 provisions of this part of the water treatment chemicals to inhibit cooling seawater corrosion of metal corrosion inhibition method. This section applies to water treatment chemicals inhibit cooling seawater uniform corrosion of metal corrosion determination.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 603 chemical reagent test methods used in the preparation of preparations and products GB/T 6682 analytical laboratory water specifications and test methods Marine monitoring code - Part 4. Analysis of seawater GB 17378.4-2007 HG/T 3523 cooling water chemical treatment standard corrosion test piece technical conditions

3 principle

Under the given conditions in the laboratory, the corrosion rate and the corrosion inhibition rate were calculated according to the mass loss of the metal test piece before and after the corrosion as a measure of seawater The basis of corrosion inhibition performance of cooling water treatment chemicals, the smaller the corrosion rate, the higher the corrosion inhibition rate, the better the corrosion inhibition performance of water treatment agents.

4 Reagents and materials

In the absence of specific requirements, the reagents used in the test refers to the analysis of reagents, laboratory water in line with GB/T 6682 provisions of the three and The above requirements; in the absence of other provisions, the test required standard solutions, preparations and products, according to the provisions of GB/T 603 prepared. 4.1 petroleum ether. 4.2 anhydrous ethanol. 4.3 hydrochloric acid. Antimony trioxide. 4.5 Stannous chloride. 4.6 Sodium hydroxide solution .60g/L. 4.7 sulfuric acid solution .1mol/L. 4.8 pickling solution. Different metal pickling liquid preparation according to Appendix A, but also the use of other high-performance pickling corrosion inhibitor formulated acid lotion. 4.9 seawater scale inhibitor and dispersant .10mg/mL. 4.10 seawater corrosion pre-filming agent .10mg/mL ~.200mg/mL. 4.11 seawater corrosion inhibitor .10mg/mL. ......

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