GB/T 18175-2014 English PDF

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GB/T 18175-2014: Determination of corrosion inhibition performance of water treatment agents -- Rotation specimen method
Status: Valid

GB/T 18175: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 18175-2014	189	Add to Cart	3 days	Determination of corrosion inhibition performance of water treatment agents -- Rotation specimen method	Valid
GB/T 18175-2000	105	Add to Cart	Auto, < 3 mins	Determination of corrosion inhibition performance of water treatment agents - Rotation specimen method	Obsolete

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Basic data

Standard ID: GB/T 18175-2014 (GB/T18175-2014)
Description (Translated English): Determination of corrosion inhibition performance of water treatment agents -- Rotation specimen method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G76
Classification of International Standard: 71.040.40
Word Count Estimation: 8,828
Date of Issue: 7/8/2014
Date of Implementation: 12/1/2014
Older Standard (superseded by this standard): GB/T 18175-2000
Quoted Standard: GB/T603; GB/T 6682-2008; GB/T 15742; HG/T 3523
Adopted Standard: ASTM G31-1972(2004)
Regulation (derived from): 2014 National Standards Bulletin No. 18
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 determination of corrosion inhibition performance of water treatment agents - Rotation specimen method with laboratory methods. This standard applies to the determination of the water treatment agent corrosion properties.

GB/T 18175-2014: Determination of corrosion inhibition performance of water treatment agents -- Rotation specimen 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.
Determination of corrosion inhibition performance of water treatment agents-Rotation specimen method ICS 71.040.40 G76 National Standards of People's Republic of China Replacing GB/T 18175-2000 Determination of corrosion inhibition performance of water treatment agents - Rotation specimen method Issued on. 2014-07-08 2014-12-01 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. This standard replaces GB/T 18175-2000 "Determination of corrosion inhibition performance of water treatment agents - Rotation specimen method" and GB/T 18175-2000 Compared to the main technical changes are as follows. --- Test device from the water bath temperature control range "30 ℃ ~ 60 ℃" changed to "25 ℃ ~ 60 ℃", and added water bath circulating pump Bath temperature uniformity (see Chapter 5, 2000 edition 5.1); --- Rotary shaft by the speed accuracy ± 3% increased to ± 2% (see Chapter 5, 2000 edition 5.1); --- Test device continuous operation cycle from "200h above" was changed to "168h above" (see Chapter 5, 2000 edition 5.1); --- By the test solution temperature "can also be selected according to the actual needs of other temperature" to "or use within 25 ℃ ~ 60 ℃ temperature range of other Test solution temperature "(see 61, 2000 version 6.1.); --- Specimen from the lower end of the outlet point increase, "the specimen should not have bubble adhesion" requirements (see 66, 2000 version 6.7.); --- The number of parallel tests conducted by "For each test condition, should have the same test piece 4 ~ 6 parallel test" to "same entity Test conditions should be not less than three groups "(see 67, 2000 version 6.8.); --- Test period increased "or may need to make their own determination test cycle" (see 68, 2000 version 6.9.); --- Removed "according to test requirements, the choice of pre-film specimen can also be used without pre-film specimen" (2000 version 6.10); --- Pickling time the specimen processed by the "3min ~ 5min" to "about 30s" (see 79, 2000 version 7.8.); --- Remove the corrosion rate conversion table (the 2000 edition of Appendix B). The standard reference ASTMG31-1972 (2004) "laboratory corrosion test of metal impregnation" establishment. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee chemical water treatment chemicals Technical Committee (SAC/TC63/SC5) centralized. This standard is drafted by. Hao bright Chemical Research and Design Institute Co., Ltd. Nanjing Gyosui, Guangzhou City Special Order Pressure Equipment Inspection and Research Institute, Shanghai Future Enterprises Limited, Nalco (China) Environmental Technology Services Ltd., Shandong Taihe Water Treatment Ltd., China Petroleum and Chemical Corporation Beijing hospital north of Yanshan Branch, CNOOC Tianjin Chemical Research & Design Institute, Jiangsu Ke Lien Water purification Technology Co., Ltd., Shenzhen Industry Co., Ltd. Run water. The main drafters of this standard. Guoxi Min, Abolished, Chen Wei, Yang Lin, Wanghui Qi, Zhou Guoping, Liu Qiang, Li and students, Li Lin, Chi bow set. This standard replaces the standards previously issued as follows. --- GB/T 18175-2000. Determination of corrosion inhibition performance of water treatment agents - Rotation specimen method 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 determination of corrosion inhibition performance of water treatment agents - Rotation specimen method with laboratory methods. This standard applies to the determination of the water treatment agent corrosion properties.

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 in test methods - Preparations with Laboratory use specifications and test methods GB/T 6682-2008 Analysis GB/T 15724 laboratory glassware beaker HG/T 3523 standard chemical treatment of cooling water corrosion test piece technical conditions

3 Method summary

Corrosion Test Method for Rotation specimen is given under laboratory conditions, the mass loss of the test piece to calculate the corrosion rate and corrosion rate assessment Inhibition performance of water treatment agents.

4 Reagents and materials

4.1 standard reagents and water, unless otherwise specified, use only analytical reagent and in line with GB/T 6682-2008 in three water Provisions. 4.2 Test preparations and products required, did not indicate when the other requirements, according to GB /603 provisions of the preparation T. 4.3 acetone. 4.4 ethanol. 4.5 hydrochloric acid solution. 14. 4.6 Sodium hydroxide solution. 60g/L. 4.7 pickling solution. 1000mL hydrochloric acid solution was added 8g hexamethylenetetramine, dissolve and mix. Suitable for carbon steel test pieces. 4.8 Specimen. comply with HG/T 3523's.

5 instruments and equipment

Test device (see Figure 1) shall meet the following requirements. --- Water bath temperature control range is 25 ℃ ~ 60 ℃, an accuracy of ± 1.0 ℃, water bath, hot water circulating through the pump, so water bath temperatures are First, the maximum temperature not more than 1.0 ℃; ......

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