|
US$269.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42904-2023: Corrosion of metals and alloys - Corrosion test of flowing water in seawater pipeline
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 42904-2023 | English | 269 |
Add to Cart
|
3 days [Need to translate]
|
Corrosion of metals and alloys - Corrosion test of flowing water in seawater pipeline
| Valid |
GB/T 42904-2023
|
PDF similar to GB/T 42904-2023
Basic data | Standard ID | GB/T 42904-2023 (GB/T42904-2023) | | Description (Translated English) | Corrosion of metals and alloys - Corrosion test of flowing water in seawater pipeline | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H25 | | Classification of International Standard | 77.060 | | Word Count Estimation | 14,193 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42904-2023: Corrosion of metals and alloys - Corrosion test of flowing water in seawater pipeline
---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.
ICS 77.060
CCSH25
National Standards of People's Republic of China
Corrosion of metals and alloys
Seawater pipeline dynamic water corrosion test
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
PrefaceⅠ
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 1
4 Requirements for natural seawater test site 1
5 Test facilities and instruments 1
5.1 General requirements 1
5.2 System structure 1
5.3 Device requirements 2
5.4 Test bench 3
5.5 Electrochemical measurement system 6
6 Sample 7
6.1 Sample shape, size and surface condition 7
6.2 Sample preparation 7
6.3 Number of specimens 7
6.4 Preparation of sample 7
7 test cycle 7
8 Test procedure 8
8.1 Preparation before test 8
8.2 Test 8
8.3 Test interruption8
8.4 Termination of test8
8.5 Post-test inspection 9
9 Test records 9
9.1 Recording of environmental factors9
9.2 Sample test records 9
9.3 Operation record 9
10 Data processing and result presentation9
10.1 Calculation formula 9
10.2 Value 10
10.3 Sample handling10
10.4 Results expression 10
11 Test Report 10
Reference 11
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by the China Iron and Steel Industry Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This document was drafted by. Qingdao Gangyan Nak Detection and Protection Technology Co., Ltd., Metallurgical Industry Information Standards Institute, Chinese Academy of Sciences Ningxia
Wave Materials Technology and Engineering Research Institute, Iron and Steel Research Institute Co., Ltd., China State Shipbuilding Corporation Limited 708th Research Institute, Iron and Steel Research
Qingdao Marine Corrosion Research Institute Co., Ltd., Shenzhen Xibao Marine Electronics Co., Ltd.
The main drafters of this document. Dong Caichang, Hou Jie, Wang Liping, Song Zhigang, Wu Xingwei, He Jianguo, Tian Zijian, Mao Feixiong, Yang Wanguo, Tao Peng,
Li Qian, Wu Jianli.
Corrosion of metals and alloys
Seawater pipeline dynamic water corrosion test
1 Scope
This document specifies the test method for dynamic water corrosion of pipelines simulated by controlling flow rate and temperature in natural seawater or artificial seawater.
This document is applicable to pipeline dynamic water corrosion tests on plate specimens, tubular specimens and pipe fittings in natural seawater or artificial seawater.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 10123 Corrosion terminology for metals and alloys
GB/T 17378.4 Marine Monitoring Specifications Part 4.Seawater Analysis
GB/T 18590 Corrosion pitting assessment method for metals and alloys
3 Terms and definitions
The terms and definitions defined in GB/T 10123 apply to this document.
4 Requirements for natural seawater test site
The main conditions that a natural seawater pipeline dynamic water corrosion test site should have are.
a) The test site has a typical natural seawater environment;
b) The water quality of the test site is clean and pollution-free, except when studying corrosion caused by pollution;
c) The test site has necessary protection measures;
d) Detailed information on the seawater environmental factors of the test site, such as water temperature, salinity, conductivity, pH value, oxygen content, sediment content,
Changes in water level, seawater tides and current speeds, etc.;
e) Regularly measure the water environment parameters of the test site. The measurement method shall refer to GB/T 17378.4.
5 Test facilities and instruments
5.1 General requirements
The equipment and pipelines that make up the system should be made of materials that are resistant to seawater corrosion. The equipment materials should be made of highly corrosion-resistant stainless steel or titanium alloy. The connecting pipes should be made of highly corrosion-resistant stainless steel or titanium alloy.
The road material should be steel pipes with anti-corrosion lining or rigid polyvinyl chloride (UPVC) pipes.
5.2 System structure
The schematic diagram of the seawater pipeline dynamic corrosion test system used in this test is shown in Figure 1.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 42904-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 42904-2023_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 42904-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 42904-2023_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+ countriesQuestion 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 [email protected]. 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.
|