■ 編者按

壬寅年漸行漸遠(yuǎn)，癸卯年瑞雪迎春。值此新年之際，我們特意將發(fā)給國(guó)際腐蝕控制工程全生命周期標(biāo)準(zhǔn)化技術(shù)委員會(huì)主席Friedersdorf先生的信件（中英文版）提供給大家學(xué)習(xí)，以此作為對(duì)2023年元旦的獻(xiàn)禮以及新春致辭！這封信中不僅介紹了國(guó)際腐蝕控制工程全生命周期標(biāo)準(zhǔn)化技術(shù)委員會(huì)（ISO/TC156/SC1）成立的來(lái)龍去脈，更重要的是對(duì)腐蝕控制工程全生命周期有了更加統(tǒng)一、全面的認(rèn)識(shí)，這為下一階段國(guó)際腐蝕控制工程全生命周期標(biāo)準(zhǔn)化工作的開(kāi)展，提出了綱領(lǐng)性的指導(dǎo)意見(jiàn)，請(qǐng)大家認(rèn)真貫徹執(zhí)行。

尊敬的Friedersdorf先生,

很高興在六月份收到您的回信，也很抱歉沒(méi)有及時(shí)地給您回信，因?yàn)槲覀儽緛?lái)想邀請(qǐng)您到中國(guó)進(jìn)行交流，但由于疫情原因影響了我們的計(jì)劃。現(xiàn)在中國(guó)正在逐步恢復(fù)開(kāi)放，我們也希望在不久后能邀請(qǐng)您來(lái)中國(guó)。另外，這期間我們也一直在嘗試解決ISO24239標(biāo)準(zhǔn)名稱(chēng)的爭(zhēng)議問(wèn)題，在您的支持和幫助下，ISO24239終于在11月2日按照原標(biāo)準(zhǔn)名稱(chēng)正式發(fā)布出版，在此，我們也衷心地感謝您所作的工作。

中美作為“腐蝕控制工程全生命周期”這一國(guó)際標(biāo)準(zhǔn)化工作新領(lǐng)域的聯(lián)合提案國(guó)，共同推進(jìn)了這一領(lǐng)域國(guó)際標(biāo)準(zhǔn)化工作的開(kāi)展。為了今后更好地開(kāi)展工作，我們也總結(jié)了從標(biāo)委會(huì)成立到現(xiàn)在的工作（見(jiàn)附件），與您分享，也希望對(duì)您有所幫助。

附件是我們對(duì)腐蝕控制工程全生命周期國(guó)際標(biāo)準(zhǔn)化工作的一些總結(jié)和認(rèn)識(shí)，正如我們一直強(qiáng)調(diào)的，腐蝕控制工程全生命周期國(guó)際標(biāo)準(zhǔn)化工作是一個(gè)全新領(lǐng)域還處于起步階段，我們也希望來(lái)自世界各國(guó)的專(zhuān)家共同不斷完善。我們也真誠(chéng)地希望能夠盡快邀請(qǐng)您到中國(guó)來(lái)進(jìn)行交流。

祝好！

附件：ISO/TC156/SC1的成立背景和對(duì)腐蝕控制工程全生命周期的認(rèn)識(shí)

TC156/SC1中國(guó)專(zhuān)家組常務(wù)副組長(zhǎng) 任振鐸

TC156/SC1中國(guó)代表 李濟(jì)克

2022年12月16日

（一）ISO/TC156/SC的成立

2016年，中美兩國(guó)聯(lián)合提出的成立腐蝕控制工程全生命周期標(biāo)準(zhǔn)化技術(shù)委員會(huì)這一新領(lǐng)域TC的新提案（ISO/TS/P254），經(jīng)一次172個(gè)ISO全體成員國(guó)投票和一次15個(gè)TMB全體成員投票通過(guò)，各國(guó)專(zhuān)家都肯定了新TC成立的必要性和可行性，當(dāng)時(shí)TMB的日本代表給中國(guó)代表的郵件指出德國(guó)、英國(guó)、法國(guó)和日本等ISO成員存有對(duì)新TC和現(xiàn)有TC工作領(lǐng)域的潛在交叉和對(duì)新提案范圍界定不清晰的疑慮，建議進(jìn)一步協(xié)調(diào)說(shuō)明后以便TMB決定是否臨時(shí)或正式地批準(zhǔn)成立新的TC（見(jiàn)附件1）。但TC156主席Goran Engstrom先生得知TMB已經(jīng)同意成立腐蝕控制工程全生命周期新TC時(shí)，突然“提出這一領(lǐng)域已經(jīng)包含在TC156中（聲稱(chēng)見(jiàn)“TC156 戰(zhàn)略規(guī)化”中的第一章“介紹”和第二章“業(yè)務(wù)環(huán)境”，特別是2.1中的第二點(diǎn)），只不過(guò)還沒(méi)有一個(gè)活動(dòng)工作項(xiàng)目”，并認(rèn)為“TS/P254提案是非常富有成效的，但它應(yīng)該作為一個(gè)新工作組或分技術(shù)委員會(huì)放在TC156下”（見(jiàn)附件2）。這迎合了當(dāng)時(shí)部分成員國(guó)所擔(dān)心會(huì)發(fā)生與現(xiàn)有TC的延伸、重復(fù)、覆蓋的問(wèn)題，加上ISO嚴(yán)格控制新標(biāo)委會(huì)成立的背景，使得TMB會(huì)議不得不作出ISO/TMB75/2016號(hào)這樣的決議（見(jiàn)附件3），暫時(shí)先作為T(mén)C156的分技術(shù)委員會(huì)開(kāi)展新領(lǐng)域的工作。并且ISO/TMB75/2016號(hào)決議還是“要求ISO/TC156向TMB提交一項(xiàng)修改其范圍的提案，使其能夠包含ISO/TS/P254提出的新的技術(shù)領(lǐng)域；進(jìn)一步要求ISO/TC156建立一個(gè)新的分技術(shù)委員會(huì)開(kāi)展新領(lǐng)域的工作”。而TC156提交修改后的范圍“金屬和合金的腐蝕的標(biāo)準(zhǔn)化，包括腐蝕測(cè)試方法，防腐蝕方法和腐蝕控制工程全生命周期。ISO內(nèi)部這些領(lǐng)域活動(dòng)的總協(xié)調(diào)”，TC156修改后的范圍顯然不符合決議的要求，因?yàn)樗旧砭桶涣恕癟S/P254提出的新技術(shù)領(lǐng)域”。

我們始終強(qiáng)調(diào)的是，TS/P 254提案成立的新TC是以腐蝕控制工程為對(duì)象，研發(fā)、制定腐蝕控制的工程需要擇優(yōu)選用相應(yīng)的多少因素、什么樣的因素，通過(guò)什么樣的集成方法、技術(shù)、模式等建成腐蝕控制的工程，實(shí)現(xiàn)從根本上全面對(duì)相應(yīng)腐蝕實(shí)施進(jìn)行全生命周期控制的標(biāo)準(zhǔn)。而TC156是以金屬和合金的腐蝕為對(duì)象，研發(fā)、制定防護(hù)金屬和合金不被腐蝕的方法、腐蝕的試驗(yàn)方法等的技術(shù)標(biāo)準(zhǔn)。兩者并沒(méi)有交叉、重復(fù)或沖突。腐蝕控制工程全生命周期作為一個(gè)工程，那就不單單牽涉擇優(yōu)選用耐蝕材料，還要針對(duì)腐蝕控制工程擇優(yōu)選用眾多的相適應(yīng)的技術(shù)、研發(fā)、設(shè)計(jì)、制造、施工與安裝、貯存與運(yùn)輸、調(diào)試與驗(yàn)收、運(yùn)行、測(cè)試檢驗(yàn)、保養(yǎng)與維修、延壽與報(bào)廢、文件與記錄、資源管理、綜合評(píng)估等因素，對(duì)這些因素，不僅因素內(nèi)要進(jìn)行擇優(yōu)選用，還要進(jìn)行因素間以及全局間的相互協(xié)調(diào)而擇優(yōu)選用, 我們并不去制定這些眾多因素的具體專(zhuān)業(yè)技術(shù)標(biāo)準(zhǔn)，僅制定要求去擇優(yōu)、協(xié)調(diào)選用現(xiàn)行的相應(yīng)專(zhuān)業(yè)標(biāo)準(zhǔn)，確保腐蝕控制工程安全、經(jīng)濟(jì)、全生命周期和綠色環(huán)保運(yùn)行的總目標(biāo)，以便實(shí)現(xiàn)從根本上全面解決最大限度地減少腐蝕給人類(lèi)造成的各種危害、避免或杜絕各種重大人身傷亡、重大環(huán)保安全事故的發(fā)生！這與TC156金屬和合金的腐蝕的范圍、對(duì)象、內(nèi)容等都是完全不同的。經(jīng)六年來(lái)的實(shí)踐證明，除SC1外，原TC156自其成立以來(lái)沒(méi)有且不可能主導(dǎo)提出任何一個(gè)其戰(zhàn)略規(guī)劃中的所謂已經(jīng)包含SC1中的項(xiàng)目。

六年來(lái)SC1分技術(shù)委員會(huì)在非常困難的情況下開(kāi)展新領(lǐng)域的工作，所制定的新領(lǐng)域的四項(xiàng)國(guó)際標(biāo)準(zhǔn)ISO23123：2020《腐蝕控制工程全生命周期通用要求》、ISO 23222：2020《腐蝕控制工程全生命周期風(fēng)險(xiǎn)評(píng)價(jià)》、ISO 23221：2020《管道腐蝕控制工程全生命周期通用要求》等三項(xiàng)國(guó)際標(biāo)準(zhǔn)于2020年11月正式向全世界發(fā)布！SC1及其所制定標(biāo)準(zhǔn)的范圍既沒(méi)有出現(xiàn)是TC156及其它相關(guān)現(xiàn)有TC的延伸、又沒(méi)有出現(xiàn)和TC156及其它相關(guān)現(xiàn)有TC的重復(fù)、更沒(méi)有出現(xiàn)被TC156及其它相關(guān)現(xiàn)有TC所覆蓋！鐵錚錚的實(shí)踐充分證明了SC1及其所制定標(biāo)準(zhǔn)的范圍是絕對(duì)不屬于TC156的范圍，也清楚地回答了某幾個(gè)成員國(guó)擔(dān)心延伸、重復(fù)、覆蓋的疑慮。

而通過(guò)這幾年的交流、總結(jié)，我們對(duì)腐蝕控制工程全生命周期有了進(jìn)一步的認(rèn)識(shí)。

（二）對(duì)腐蝕控制工程全生命周期的認(rèn)識(shí)

1. 工程的定義：自然界任何存在物的形成，其相應(yīng)（自然形成或人工形成或二者復(fù)合形成）鏈條上都需眾多相關(guān)所有因素經(jīng)過(guò)相應(yīng)科學(xué)、技術(shù)有序有效相應(yīng)整合、資源優(yōu)化配置的集成全過(guò)程。

2. 中國(guó)有諺語(yǔ)：“有的放矢，”“有益為之，無(wú)益而不為?！眹?guó)際腐蝕控制工程全生命周期標(biāo)準(zhǔn)化所以是以腐蝕控制工程全生命周期為對(duì)象，制定出能夠有針對(duì)性有效性，從根本上全面解決“腐蝕”這個(gè)“的”的腐蝕控制工程全生命周期國(guó)際標(biāo)準(zhǔn)的這個(gè)“矢”，是基于對(duì)“腐蝕”本質(zhì)有的放矢這個(gè)“的”的深刻認(rèn)識(shí)、解析、研究的基礎(chǔ)上而有益為之！那么就是以腐蝕控制工程全生命周期為對(duì)象，立足于全球腐蝕控制工程全生命周期領(lǐng)域全局的高度，集全世界腐蝕控制領(lǐng)域中所有相關(guān)的科技因素資源和非科技因素資源之大成，對(duì)影響其相應(yīng)腐蝕控制工程抗拒相應(yīng)的腐蝕源，確保人身健康和生命財(cái)產(chǎn)安全、國(guó)家安全和生態(tài)環(huán)境安全經(jīng)濟(jì)運(yùn)行的基礎(chǔ)上，求得經(jīng)濟(jì)、全生命周期和綠色環(huán)保的最佳效益為目標(biāo)的全過(guò)程鏈條上的所有科技因素和非科技因素資源（如目標(biāo)、腐蝕源、材料、技術(shù)、設(shè)計(jì)、研發(fā)、制造、施工與安裝、貯存與運(yùn)輸、調(diào)試與驗(yàn)收、運(yùn)行、保養(yǎng)與維修、延壽與報(bào)廢、文件與記錄、資源管理、綜合評(píng)估等），開(kāi)展其因素內(nèi)、因素間及其全局間的擇優(yōu)性、協(xié)調(diào)性的選用；對(duì)其擇優(yōu)性、協(xié)調(diào)性選用的所有因素資源，通過(guò)運(yùn)用科學(xué)、技術(shù)、有序有效性的工程化集成相應(yīng)所有因素資源協(xié)調(diào)、優(yōu)化配置的全過(guò)程中，制定出一套具有整體性、系統(tǒng)性、相互協(xié)調(diào)優(yōu)化性、相互銜接、相互交織、相互支撐的全面綜合程序性的標(biāo)準(zhǔn)，以實(shí)現(xiàn)其對(duì)相應(yīng)腐蝕工程的有效性被動(dòng)或主動(dòng)的控制，被動(dòng)或主動(dòng)控制無(wú)效性時(shí)，即自動(dòng)性報(bào)警！最終達(dá)到最佳最大限度地減少腐蝕工程給人類(lèi)社會(huì)帶來(lái)的各種危害，并能完全杜絕或避免隱蔽性、漸進(jìn)性、突發(fā)性腐蝕工程所造成相應(yīng)重大安全、環(huán)保等事故的發(fā)生！

注：有效控制包括主動(dòng)控制和被動(dòng)控制，主動(dòng)控制即把一切來(lái)犯之腐蝕控制于被保護(hù)對(duì)象之外，被動(dòng)控制即抗拒一切來(lái)犯之腐蝕；控制無(wú)效時(shí)，自動(dòng)報(bào)警即可實(shí)施預(yù)案將重大安全、環(huán)保隱患事故消滅在發(fā)生之前?。ň褪蔷姹粍?dòng)控制和主動(dòng)控制開(kāi)始失效，被保護(hù)對(duì)象將開(kāi)始受到隱蔽性、漸進(jìn)性腐蝕的破壞一直到安全、環(huán)保等重大事故的發(fā)生，經(jīng)腐蝕速率的測(cè)算，國(guó)際上的共識(shí)，大約需要5年左右時(shí)間）。

3. 這里特別強(qiáng)調(diào)是以“腐蝕”為對(duì)象而進(jìn)行獨(dú)特的深入認(rèn)識(shí)、解析、研究，而不是目前人們那種常規(guī)性的以金屬、合金的腐蝕性或涂料、顏料的腐蝕性等為對(duì)象，而專(zhuān)業(yè)性的深入運(yùn)用冶金學(xué)、電化學(xué)、物理學(xué)化學(xué)、熱力學(xué)等進(jìn)行相應(yīng)具體的認(rèn)識(shí)、解析、研究相應(yīng)的腐蝕機(jī)理、腐蝕的檢測(cè)方法、檢測(cè)機(jī)具、檢測(cè)技術(shù)等進(jìn)行相應(yīng)標(biāo)準(zhǔn)的制 定等。

那么獨(dú)立的“腐蝕”究竟有是什么?又是什么因素造成了獨(dú)立的“腐蝕”？經(jīng)縱觀(guān)歷史、橫看世界全面對(duì)“腐蝕”進(jìn)行獨(dú)特深入實(shí)際、實(shí)踐的認(rèn)識(shí)、解析、研究、總結(jié)出“腐蝕”完全是一項(xiàng)某物與環(huán)境相互作用使其性能發(fā)生隱蔽性、漸進(jìn)性變化過(guò)程的特殊性的特別重要工程！所以完全是一項(xiàng)特殊性的特別重要工程，是因?yàn)槠渫耆且豁?xiàng)隱蔽性、漸進(jìn)性又潛伏著極為重大安全、環(huán)保事故發(fā)生風(fēng)險(xiǎn)的、而不同于一般又往往被人們所忽視、不認(rèn)識(shí)的極其十分重要的工程（注：腐蝕的特征，腐蝕的屬性）！只有在對(duì)“腐蝕”這個(gè)“的”切實(shí)弄清楚的前題下，方能更重要地研發(fā)制定出對(duì)“腐蝕”加以從根本上全面解決相應(yīng)針對(duì)性、有效控制的“矢”；這個(gè)“矢”就是有針對(duì)性地解決和控制造成這個(gè)腐蝕工程“的”的所有因素！其中的科技因素構(gòu)成了工程的內(nèi)核，這就是“某物的本身和相應(yīng)環(huán)境”的相互作用：即直接腐蝕源：就是某物承受什么樣的介質(zhì)如酸、堿、鹽等；間接腐蝕源：就是某物在什么樣的工況條件下如壓力、溫度、濕度等；環(huán)境腐蝕源：就是某物在什么樣的環(huán)境狀況條件下如海洋性氣候還是大陸性氣候、橋梁性構(gòu)筑物等；相互作用過(guò)程中有可能產(chǎn)生新的腐蝕源，如尿素生產(chǎn)過(guò)程中產(chǎn)生的中間產(chǎn)物縮二脲等；而另外的非科技因素構(gòu)成了工程的邊界，包括經(jīng)濟(jì)、政治、文化、社會(huì)和生態(tài)文明等。這就是從標(biāo)準(zhǔn)入手聯(lián)合美國(guó)成立國(guó)際腐蝕控制工程全生命周期標(biāo)準(zhǔn)化技術(shù)委員會(huì)的初衷！這是跨學(xué)科、跨領(lǐng)域的集成創(chuàng)新（注：集成創(chuàng)新：就是將工程系統(tǒng)的各因素如信息、技術(shù)、目標(biāo)、物資、資金、方法等有機(jī)結(jié)合起來(lái)，通過(guò)對(duì)所有因素的整合，形成綜合優(yōu)勢(shì)，使工程系統(tǒng)總體上達(dá)到相當(dāng)完備的程度；在此基礎(chǔ)上開(kāi)展全集成與智能化系統(tǒng)的融合，這是當(dāng)今國(guó)際社會(huì)21世紀(jì)的工程系統(tǒng)因素全集成和智能化程度全球化的工程，其顯著特征表現(xiàn)為因素全球化流動(dòng)即如工程全球化招標(biāo)、物資全球化采購(gòu)、信息全球化共享、人才全球化招聘等的科學(xué)技術(shù)發(fā)展競(jìng)爭(zhēng)的目標(biāo)和最高水平，加強(qiáng)、加快對(duì)這一科學(xué)技術(shù)在腐蝕控制工程領(lǐng)域中的實(shí)施應(yīng)用，實(shí)現(xiàn)腐蝕控制工程全生命周期的最佳效益?。?，并非設(shè)計(jì)、材料、工藝領(lǐng)域的“線(xiàn)性創(chuàng)新”，是基于堅(jiān)實(shí)的科學(xué)原理，它不是神話(huà)或幻想，而是對(duì)科學(xué)原理的創(chuàng)新性應(yīng)用；這正是由顛覆性技術(shù)的本質(zhì)所決定的：在新想法、新技術(shù)冒尖的時(shí)候，相當(dāng)一部分人一般都不看好、不贊同，甚至無(wú)法理解，正象TMB日本成員Yasu郵件所說(shuō)的“我相信這樣做對(duì)于確保ISO在這一領(lǐng)域技術(shù)工作更大的協(xié)調(diào)性和一致性是值得的，并且最終順利推進(jìn)這一有趣的、困難的新項(xiàng)目。我相信，對(duì)于新項(xiàng)目更好的未來(lái)也是一個(gè)好的投入”。

附件1 TMB日本成員郵件

晨光：

非常感謝您對(duì)這一新提案的進(jìn)一步說(shuō)明。我們看到ISO成員的投票清楚地展示了此新提案的全球市場(chǎng)相關(guān)性。而另一方面，仔細(xì)審視來(lái)自像德國(guó)、英國(guó)、法國(guó)和日本等ISO成員的意見(jiàn)，我作為T(mén)MB的成員，認(rèn)為這些ISO成員表達(dá)的不僅僅是對(duì)新TC和現(xiàn)有TC工作領(lǐng)域的潛在交叉的疑慮，同樣還有對(duì)新提案范圍界定的不清晰的關(guān)注。因此，我認(rèn)為對(duì)于TMB而言，的確有必要要求新提案的提案人在與相關(guān)TC協(xié)調(diào)后進(jìn)一步修改完善工作范圍和工作框架，提交給TMB，TMB再?zèng)Q定是否臨時(shí)或正式地批準(zhǔn)成立新的TC。我相信這樣做對(duì)于確保ISO在這一領(lǐng)域技術(shù)工作更大的協(xié)調(diào)性和一致性是值得的，并且最終順利推進(jìn)這一有趣的、困難的新項(xiàng)目。我相信，對(duì)于新項(xiàng)目更好的未來(lái)也是一個(gè)好的投入。

希望您能理解我的好意。

祝好

Yasu

附件2 TC156主席、中央秘書(shū)處標(biāo)準(zhǔn)和政策主管、美國(guó)代表郵件記錄

1）TC156的主席給Stephane（TPM）

Stephane：

我得知TMB已經(jīng)同意成立腐蝕控制工程生命周期新TC。

我的意見(jiàn)是這一領(lǐng)域已經(jīng)包含在TC156中，只不過(guò)還沒(méi)有一個(gè)活動(dòng)工作項(xiàng)目。見(jiàn)“TC156戰(zhàn)略規(guī)劃”中的第1章“介紹”和第2章“業(yè)務(wù)環(huán)境”，特別是2.1中第二點(diǎn)。

我認(rèn)為T(mén)S/P254提案是非常富有成效的，但它應(yīng)該作為一個(gè)新工作組或分技術(shù)委員會(huì)放在TC156下。

現(xiàn)在是否還有可能改變TMB的這一決定，把TS/P254放入TC156。或者我們還能做什么？

我會(huì)在TC156今年6月布拉格的會(huì)議上把這一問(wèn)題提出來(lái)。在這這之前，我想先向您提出這個(gè)建議。

Goran TC156主席

2）ISO中央秘書(shū)處標(biāo)準(zhǔn)和政策主管 sophie將這封信轉(zhuǎn)發(fā)給了郭主任和美國(guó)代表steven：

晨光和Steven：

我剛剛收到了TPM（根據(jù)事實(shí)來(lái)回答）發(fā)來(lái)的這封信。我在想你們是否已經(jīng)聯(lián)系了中國(guó)的兩個(gè)秘書(shū)處（TC256（此處應(yīng)該是筆誤，應(yīng)該是TC156）和新TC）進(jìn)行協(xié)商。

無(wú)論如何，這是給你們的新信息。

Sophie

3）美國(guó)代表Steven回復(fù)了Sophie郵件

sophie和晨光，

我已經(jīng)和晨光溝通了，作為ANSI的觀(guān)點(diǎn)，是靈活的，并且如果這是首選辦法的話(huà)，我們也會(huì)和中國(guó)一起共同有效地領(lǐng)導(dǎo)TC156下的新分會(huì)。

謝謝。

Steven

4）sophie回復(fù)了steven：

謝謝你的答復(fù)。至少?gòu)腡C156來(lái)看他們認(rèn)為這可以作為一個(gè)分技術(shù)委員會(huì)。我想我比較贊成這個(gè)解決方案，主要原因是如果我們能夠在現(xiàn)有體系內(nèi)來(lái)制定需要的標(biāo)準(zhǔn)，我們可以避免造成利益相關(guān)方困惑，并且與我們TMB任務(wù)組（TMB TF）的建議保持一致。

期待著晨光的答復(fù)。

Sophie

附件3 范圍和決議

（一）TMB決議75/2016

TMB決議75/2016

TMB第66次會(huì)議通過(guò)，日內(nèi)瓦（瑞士），2016年6月15-16

擴(kuò)大ISO/TC156的范圍以包含一個(gè)新的技術(shù)活動(dòng)領(lǐng)域——腐蝕控制工程生命周期（TS/P254）

TMB要求ISO/TC156“金屬和合金的腐蝕”向TMB提交一項(xiàng)修改其范圍的提案，使其能夠包含TS/P254提出的新的技術(shù)領(lǐng)域，進(jìn)一步要求ISO/TC156建立一個(gè)新的分技術(shù)委員會(huì)開(kāi)展新領(lǐng)域工作（秘書(shū)處由中國(guó)SAC 承擔(dān)）。

（二）ISO/TS/P254提出的新的技術(shù)領(lǐng)域的范圍

腐蝕控制工程全生命周期的標(biāo)準(zhǔn)化，包括術(shù)語(yǔ)和定義，通用要求以及腐蝕控制工程全生命周期的評(píng)價(jià)。工程生命周期是指被保護(hù)對(duì)象從基于材料選擇和保護(hù)措施的最初設(shè)計(jì)和開(kāi)發(fā)，到施工、檢驗(yàn)、評(píng)估、維護(hù)、退役的整個(gè)系統(tǒng)過(guò)程。

不包含金屬和合金腐蝕的領(lǐng)域的標(biāo)準(zhǔn)化（包括腐蝕測(cè)試方法和腐蝕阻止方法），涂料、顏料及相關(guān)產(chǎn)品（包括原材料）的標(biāo)準(zhǔn)化，有特殊要求的特定行業(yè)或 細(xì)分市場(chǎng)也不含在范圍內(nèi)。

（三）TC156范圍

1. 原范圍

金屬和合金的腐蝕的標(biāo)準(zhǔn)化，包括腐蝕測(cè)試方法，防腐蝕方法。ISO內(nèi)部這些領(lǐng)域活動(dòng)的總協(xié)調(diào)。

2. 修改后范圍

金屬和合金的腐蝕的標(biāo)準(zhǔn)化，包括腐蝕測(cè)試方法，防腐蝕方法和腐蝕控制工程全生命周期（在5月6日的視頻會(huì)議上中央秘書(shū)處明確指出：這讀起來(lái)僅涉及“金屬和合金的腐蝕”）。ISO內(nèi)部這些領(lǐng)域活動(dòng)的總協(xié)調(diào)。

注：

1）腐蝕的特征

腐蝕的特征就是極具普遍性的存在，這里所說(shuō)的極具就是說(shuō)，腐蝕充滿(mǎn)了整個(gè)地球村、地球沒(méi)有不腐蝕的地方，凡是有腐蝕的地方，必然有被腐蝕的物所存在，這就表明腐蝕絕對(duì)不可能是獨(dú)立存在的，其永遠(yuǎn)是伴隨著任何物的存在而存在、產(chǎn)生而產(chǎn)生、消除而消除，即使一個(gè)點(diǎn)、一個(gè)針眼同樣如此！蟻穴潰堤，一個(gè)針眼上的腐蝕都有可能造成人仰馬翻、災(zāi)難大禍，所以，整個(gè)地球村始終都處于被腐蝕的危害之中，僅只是腐蝕程度、危害的程度不同而已，因?yàn)橐鸶g的物與環(huán)境相互作用的程度不同、因素不同，即是一個(gè)點(diǎn)、一條線(xiàn)、一個(gè)面、一個(gè)體上被腐蝕的物與環(huán)境相互作用的程度也不同、因素也不同！因此，對(duì)腐蝕的極具普遍性必須要有一個(gè)深刻清醒的識(shí)別，識(shí)別準(zhǔn)、識(shí)別清、識(shí)別全，這是從根本上全面解決腐蝕問(wèn)題的一個(gè)極為重要的識(shí)別存在位置的問(wèn)題。

2）腐蝕的屬性

腐蝕的屬性就是極具隱蔽性、漸進(jìn)性的吞噬、突發(fā)性的破壞，而且有始終存在著極具風(fēng)險(xiǎn)的人身傷亡、環(huán)境污染等重大事故發(fā)生的隱患。對(duì)此，作為從事腐蝕控制的仁人志士須要有冷靜、清醒、深入的思考：這里所說(shuō)的極具隱蔽性就是說(shuō)“明槍易躲，暗箭難防”，那么解決極具隱蔽性腐蝕的“暗箭難防”的難度要比解決“明槍易躲”如裝置、設(shè)施明面上的幾何尺寸大小、結(jié)構(gòu)、強(qiáng)度、硬度等難度要大得多、困難得多，這是第一難；第二難就是要解決猶如“鈍刀割肉，文火煎心”的極具漸進(jìn)性吞噬的屬性；還有始終存在著不規(guī)律、不恒量屬性的第三難；同時(shí)，造成腐蝕的因素多數(shù)又是動(dòng)態(tài)的，這是第四難；還不僅如此，而且始終還存在著極具風(fēng)險(xiǎn)性的人身傷亡、環(huán)境污染等重大事故發(fā)生隱患的第五難！你不時(shí)刻倍加警惕能行嗎！這是從根本上全面解決腐蝕問(wèn)題的第三個(gè)極為必須深入思考、研習(xí)、精心等的問(wèn)題。

腐蝕充滿(mǎn)了整個(gè)世界，世界沒(méi)有不腐蝕的地方，凡是有腐蝕的地方，必然有被腐蝕的物的存在，所以對(duì)腐蝕的斗爭(zhēng)必須要站在全世界的高度，以世界性的共同事業(yè)為重任進(jìn)行國(guó)際性的交流、探討、合作，開(kāi)展腐蝕的控制，這就是國(guó)際性的含義。腐蝕的控制不僅僅是單一性的科學(xué)技術(shù)及其標(biāo)準(zhǔn)，現(xiàn)實(shí)血的教訓(xùn)已經(jīng)多次給人類(lèi)敲響了警鐘！我們從中深刻地認(rèn)識(shí)到“腐蝕控制完全是一個(gè)工程”。工程的概念就是工程要素的集成過(guò)程、包括科學(xué)技術(shù)要素與非科學(xué)技術(shù)要素、是科學(xué)技術(shù)要素與非科學(xué)技術(shù)要素的統(tǒng)一體，兩類(lèi)要素又相互作用、相互制約，其中科學(xué)技術(shù)要素構(gòu)成了工程的內(nèi)核，非科學(xué)技術(shù)要素構(gòu)成了工程的保證。工程的成功與失敗也不僅僅是科學(xué)技術(shù)要素就能決定的，甚至更多的時(shí)候取決于非科學(xué)技術(shù)要素。這就是腐蝕控制工程概念的來(lái)源，這在中美聯(lián)合提案中就已表述。而全生命周期僅僅是對(duì)腐蝕控制過(guò)程的壽命長(zhǎng)、短，階段、界限，目標(biāo)的定位。而這里全生命周期是指像人的生命“從搖籃到墳?zāi)埂闭麄€(gè)的一個(gè)全過(guò)程的目標(biāo)進(jìn)行控制 而已。

Dear Mr. Fritz Friedersdorf,

I am very glad to receive your reply in June, and I am sorry that I did not reply you in time, because we originally wanted to invite you to communicate face to facein China, but our plan was affected by the pandemic. Now that China is gradually opening up, we hope to invite you to China in the near future. In addition, we have been trying to solve the matter of ISO 24239 title during this period. With your support and help, ISO24239 finally was officially published on November 2nd in accordance with the original title. Here, we also sincerely thank you for your work.China and the United States, as co-proposer of the new field of Corrosion Control Engineering Life Cycle, have jointly promoted the international standardization in this field. In order to better develop our work in the future, we have also summarized the work from the establishment of SC1 to the present, and we would like to share it with you and hope it will be helpful to you, please find the attached document.The document contains some summaries and understandings of our international standardization work on corrosion control engineering life cycle. As we have always emphasized, the international standardization of corrosion control engineering life cycle is a new field that is still in its infancy and we hope that experts from all over the world will work together to continuously improve it. We also sincerely hope to invite you to China for exchange as soon as possible.

Best regards

Attachment：The establishment of ISO/TC156/SCandtheunderstanding of corrosion control engineering life cycle

Zhenduo Ren, executive deputy leader of China expert group of TC156/SC1,

China representative of TC156/SC1

你厲害，能一年掙幾十萬(wàn)，大老板啊，當(dāng)然瞧不起我，沒(méi)準(zhǔn)我畢業(yè)后還跟你打工哩。我呸。做日本浪夢(mèng)。浪唄，浪死裂熊。

December 16, 2022

(I) The establishment of ISO/TC156/SC

In 2016, a new proposal (ISO/TS/P254) jointly proposed by China and United States was voted through two ballots including all ISO members vote and TMB vote, which the necessity and feasibility of establishing a new TC were agreed by most of ISO members. At that time, the Japanese representative of TMB sent an email to the Chinese representative pointing out that someISO members such as DIN, BSI, AFNOR and JISC had only concerns about the potential overlap of scope between the work areas of the new TC and the existing relevant TC/SCs, as well as the lack of clarityof proposed scope, and he thought that it is necessary for furtherrefinement and coordination before approving the establishment of a new TC either on a provisional basis or formally (see Annex 1). However, when then-chairman of TC156 Mr. G?ranEngstr?m learned that TMB had agreed to establish a new TC in the field of corrosion control engineering life cycle, he proposed that this field already was included in TC156, but without an active work item（See in the "Strategic Business Plan of ISO/TC156 "clauses"1. Introduction" and "2 Business Environment of the ISO/TC 156", especially the second bullet from the end in 2.1.）he also thought that the TS/P254 proposal was very fruitful, but it ought to be included in ISO/TC 156 as a new WG or SC (see Annex 2). This catered to the concerns of some member states that there would be extension, duplication, and coverage with the existing TC. Coupled with the background of the establishment of the new standard Committee under the strict control of ISO, the TMB meeting had to take TMB Resolution75/2016 (see Annex 3). Therefore, the new TC had to carry out the work in the new field as the sub-technical committee of TC156 temporarily. However, resolution TMB Resolution75/2016 still "Requests that ISO/TC 156 Corrosion of metals and alloys submits to the TMB a proposal to modify its scope in order to include the new field of activity proposed in TS/P 254, and further requests ISO/TC 156 to establish a new subcommittee to undertake the new work.” While TC156 submitted the revised scope "Standardization in the field of corrosion of metals and alloys including corrosion test methods, corrosion prevention methods and corrosion control engineering life cycle. General coordination of activities in these fields within ISO." Apparently, It does not meet the requirement of the resolution, because it does not include "the new technology field proposed by TS/P254".

We have always emphasized that the new TC proposed by TS/P254 is aimed at the corrosion control engineering. The research, development and formulation of the corrosion control engineering need to select the appropriate number of factors, what kind of factors, and what kind of integration methods, technologies, modes, etc. to build the corrosion control engineering, so as to realize the standard of fundamentally and comprehensively implementing the whole life cycle control of the corresponding corrosion. TC156 takes the corrosion of metals and alloys as the object, develops and formulates technical standards such as methods for protecting metals and alloys from corrosion and corrosion test methods. There is no overlap, repetition or conflict between the two.The corrosion control engineering life cycle involves not only the selection of corrosionresistant materials, but also the selection of a large number of appropriate technologies, research and development, design, manufacturing, construction and installation, storage and transportation, commissioning and acceptance, operation, testing and inspection, maintenance and repair, life extension and scrapping, documents and records, resource management, comprehensive evaluation and so on. For these factors, it is not only necessary to select the best within the factors, but also to coordinate among the factors and the overall situation. We do not develop specific professional technical standards for these many factors, but only formulate requirements to select the best and coordinate the selection of the current corresponding professional standards, so as to ensure the overall goal of safety, economy, whole life cycle and green environmental protection operation of the corrosion control engineering, In order to achieve a fundamental and comprehensive solution, minimize the various hazards caused by corrosion to human beings, avoid or eliminate the occurrence of various major personal casualties and major environmental protection and safety accidents. The scope and object are different from the TC156. Therefore, it is proved by practice of past six years that there has been no NWIP proposal for a new field of work proposed by TC156 that was included in its Strategic Business Plan except SC1 itself.

In the past six years, SC1 has carried out work in new fields under very difficult circumstances. In this new field, among the four international standards under study, the following three standards were officially published worldwide in November 2020:ISO 23123:2020 "Corrosion control engineering life cycle - General requirements"、ISO 23222:2020 "Corrosion Control Engineering Life Cycle- Risk Assessment" and ISO 23221:2020 "Pipeline Corrosion Control Engineering Life Cycle General Requirements". Practice has fully proved that the developed standard is neither an extension of TC156 and other relevant existing Technical Committees, nor a repetition of TC156 and other relevant existing Technical Committees, nor is it covered by TC156 and other relevant existing Technical Committees! It is proved by practice that the scope of SC 1 and its standards doesn't fall within the scope of TC 156, and also answer clearly some members' worries about extension, duplication, and coverage with the existing TC.Through the communication and summary in recent years, we have a further understanding of corrosion control engineering life cycle.

(II) Understanding of Corrosion Control Engineering Life Cycle

1. The definition of Engineering: the formation of any existence in nature, its corresponding (natural formation or artificial formation or the combination of the two) chains require an integrated whole process that many related factors to be integrated in an orderly and effective manner through corresponding science and technology to optimize the allocation of resources.

2.Chinese proverbs say, ‘Shoot the arrow at the target’, and ‘Do what is beneficial, and do not do what is useless’. The international standardization of corrosion control engineering life cycle takes the whole life cycle of corrosion control engineering as the object, and formulates the international standards for corrosion control engineering life cycle treated as the "arrow"to effectively, and fundamentally solve the"target"that is"corrosion", which do what is beneficial based on the deep understanding, analysis, and research of the essence of "corrosion". This takes corrosion control engineering life cycle as the object, based on the overall height of the global corrosion control engineering life cycle field, integrates all relevant scientific and technological factor resources and non-technical factor resources in the field of corrosion control around the world. For all technological factors and non-technical factors resources in the chain of the corresponding corrosion control engineering life cycle, which affects the corresponding corrosion control engineering to resist the corrosion source, to achieve the best benefit goals of economy, full life cycle and green environmental protection on the basis of ensuring personal health, life and property safety, national security and ecological environment safety, economic operation, (such as object, corrosion sources, materials, technologies, design, research and development, manufacturing, construction and installation, storage and transportation, commissioning and acceptance, operation, maintenance and repair, life extension and scrapping, documents and records, resource management, comprehensive evaluation, etc.), it will carry out the selection and coordination among factors, between factors and the overall situation.For all the factor resources selected for optimality and coordination, through the use of science and technology, ordered and effective engineering integration of the entire process of optimizing the allocation of all factor resources, a set of integrated, systematic, mutually coordinated and optimized, comprehensive and comprehensive procedural standards that are connected, interwoven, and mutually supported was formulated. It will achieve its passive or active control over the effectiveness of the corresponding corrosion engineering. when the passive or active control is invalid, it will automatically issue an alarm immediately! Ultimately, it can best minimize the various hazards brought by corrosion engineering to human society, and can completely eliminate or avoid the occurrence of corresponding major safety and environmental protection accidents caused by concealed, gradual, and sudden corrosion engineering!Note: Effective control includes active control and passive control. Active control means controllingall incoming corrosion away from the protected object, and passive control means resisting all incoming corrosion. When the control is invalid, the automatic alarm can implement the plan to eliminate the major safety and environmental protection hazards before they happen!(It is to warn that passive control and active control begin to fail, and the protected object will begin to be damaged by concealed and progressive corrosion until major accidents such as safety and environmental protection occur. According to the calculation of corrosion rate, it is an international consensus that it takes about 5 years).3.Here, special emphasis is on "corrosion" as the object to carry out unique in-depth understanding, analysis, and research, rather than the current conventional practice of focusing on the corrosion of metals and alloys or coatings and pigments. It is a professional in-depth use of metallurgy, electrochemistry, physical chemistry, thermodynamics, etc. to carry out corresponding specific understanding, analysis, research on the corresponding corrosion mechanism, corrosion detection methods, detection equipment, detection technology, etc. to formulate corresponding standards, etc.

So, what exactly is independent "corrosion"? What factors cause independent "corrosion"? After looking throughout the history and across the world, we have carried out a unique and in-depth practical understanding, analysis, research, and conclusion that "corrosion" is completely a special important engineering that the interaction between substance and the environment to cause an insidious, gradual change in its properties during the progress. Therefore, it is a special and important engineering because it is completely concealed and gradual, and there are extremely serious risks of safety and environmental accidents. It is different from ordinary engineering and is often ignored and unknown by people. (note: characteristics of corrosion, properties of corrosion)! Only when the "target", "corrosion" is clearly understood, can it be more important to develop and formulate the "arrow" that fundamentally and comprehensively solves the "corrosion" and effectively controls it. This "arrow" is to solve and control all the factors that cause corrosion engineering in a targeted manner! The scientific and technological factors constitute the core of the engineering, which is the interaction of "substance and the corresponding environment". The direct source of corrosion is the medium that the substance bears, such as acid, alkali, salt, etc. the indirect source of corrosion is the working condition of the substance such as pressure, temperature, humidity, etc.; the source of environmental corrosion is the environmental conditions in which the substance is located, such as marine climate or continental climate, bridge structures, etc.; new corrosion sources may be generated during the interaction process, such as the intermediate product biuret produced in the urea production process. Other non-technical factors constitute the boundaries of engineering, including economics, politics, culture, society, and ecological civilization. This is our original intention of starting from the standard and uniting with the United States to establish the International Standardization Technical Committee for the Corrosion Control Engineering Life Cycle! This is an integrated innovation across disciplines and fields, not a "linear innovation" in the fields of design, materials, and technology. (Note: Integrated innovation refers to the combination of various elements of the engineering system, such as information, technology, objectives, materials, funds, methods, etc., to form comprehensive advantages, so that the engineering system as a whole can reach fairly complete degree, and on this basis to carry out the combination of total integration and intelligent system. This is the international engineering of 21st century with total integration of engineering elements and globalized intelligentization. Its significant characteristics are reflected in the global flow of elements, such as global engineering bidding, global materials procurement, global information sharing, global talent recruitment and other scientific and technological development competition goals and the highest level, strengthen and accelerate the implementation of this science and technology in the field of corrosion control engineering, to achieve the best benefits of corrosion control engineering life cycle!) It is based on substantial scientific principles, not myth or fantasy, but an innovative application of scientific principles, which is determined by the essence of disruptive technology. When new ideas and technologies emerge, a considerable number of people are generally not optimistic about them, disagree with them, or even fail to understand them. As Mr.Yasu, a member of TMB Japan, said in an email, "I believe it is worthwhile for ISO to ensure greater coordination and consistency of the technical work in this area, and ultimately to smoothly advance this interesting but difficult new project. I believe it is also a good investment in a better future for new projects."

Annex 1

Dear Chenguang,

I appreciate very much for your further explanation about this new work item proposal. We now see the global market relevance of this new project as clearly indicated by the result of ISO member voting. On the other hand, when scrutinizing the comments from ISO members including DIN, BSI, AFNOR and JISC, I as a TMB member, recognize that those ISO members expressed not only concerns about potential overlap of scope between the new TC and the existing relevant TC/SCs but also significant concerns about lack of clarity of proposed scope, and therefore, I would think that it is rather necessary for the TMB to take one more advance step to request the proposer of this new work item to refine the scope and work programme in coordination with the relevant TC/SCs, and to submit them to the TMB before our approving the establishment of a new TC either on a provisional basis or formally. I do believe that it is worthwhile to taking this kind of advance step for ensuring greater coordination and coherence of technical work at ISO in this field and eventually for smooth progress of this interesting and difficult new project. This may be a good investment for better future of this new project, I believe.

Hope you could understand my good will.

Best regards,

Yasu

Annex 2

1) Mail from TC156 Chair to TPM

Dear Stéphane,

I have been informed that TMB have accepted to establish a new ISO/TC on Corrosion control engineering life-cycle.

I my opinion is that this field already is included in ISO/TC 156, but without an active work item. See in the "Strategic Business Plan of ISO/TC 156" clauses "1. Introduction" and "2 Business Environment of the ISO/TC 156", especially the second bullet from the end in 2.1 .

My opinion is that the proposal TS/P 254 is very fruitful, but it ought to be included in ISO/TC 156 as a new WG or SC.

Is it possible now to change the decision in TMB so the decision can be to insert the proposal TS/P 254 in ISO/TC 156 or what can we do?

I will rise this question on the meeting of TC 156 in Prague in June 2016. Before that I would like to have an advise of you.

Best regards

G?ran

2) Mail from the Director of ISO/CS/Standardization and Technical Policy to TMB members of SAC and ANSI

Dear Chenguang, dear Steven

This email has just been forwarded to me by the TPM ( who will answer based on facts). I was wondering if you already contacted the 2 SAC secretaries ( TC256 and new TC) for discussion.

Anyway, this is more for your information.

Kind regards

Sophie

3) Mail from TMB member of ANSI to the director of ISO/CS/Standardization and Technical Policy and TMB member of SAC

Hi, Sophie and Chenguang,

I have already communicated to Chenguang that from an ANSI perspective, we are flexible and feel that we could effectively co-lead an SC with SAC within TC 156 for this work if that is the preferred approach.

Thanks, and cheers!

Steven

4) Mail from the Director of ISO/CS/Standardization and Technical Policy to TMB member ofANSI Hi Steven

Thanks for your input. At least from TC156 they believe it could be a new SC.

I think I would favour this solution mainly because if we can develop the standards needed in an existing structure we avoid confusing the stakeholders and we are in line with the recommendations from our TMB TF on coherent approach

I am waiting for Chenguang feedback

Kind regards

Sophie

Annex3

1) TMB Resolution 75/2016TECHNICAL MANAGEMENT BOARD RESOLUTION 75/2016

Adopted at the 66th meeting of the Technical Management Board, Geneva (Switzerland), 15-16 June, 2016

Enlargement of the scope of ISO/TC 156 to incorporate a new field of technical activity on Corrosion control and engineering life-cycle (TS/P 254)

The Technical Management Board, Requests that ISO/TC 156 Corrosion of metals and alloys submits to the TMB a proposal to modify its scope in order to include the new field of activity proposed in TS/P 254, and

Further requests ISO/TC 156 to establish a new subcommittee to undertake the new work (with the secretariat allocated to SAC (China)).

2) Scope of new field proposed by TS/P254

The standardization of the corrosion control engineering life cycle, including the terms and definitions, general requirements, and evaluation of the corrosion control engineering life cycle. The engineering life cycle is defined as a system view of the structure to be protected from corrosion that includes the initial design and development based on material selection and protective measures through the construction, inspection, assessment, maintenance, and decommissioning at the end of life of the structure.

Excluded is work in the field of corrosion of metals and alloys including corrosion test methods and corrosion prevention methods and standardization in the field of paints, varnishes, and related products, including raw materials. Specific industry or market segments due to their special requirements are also excluded from the scope.

3）Scope of TC156

a) Original scope: Standardization in the field of corrosion of metals and alloys including corrosion test methods and corrosion prevention methods. General coordination of activities in these fields within ISO.b) Current scope: Standardization in the field of corrosion of metals and alloys including corrosion test methods, corrosion prevention methods and corrosion control engineering life cycle. (Note: ISO/CS pointed that this is still read as related to only “metals and alloys” at the virtual meeting on May 6.) General coordination of activities in these fields within ISO.

Note:

1) The characteristic of corrosion

The characteristic of corrosion is its universal existence, which means that corrosion is full of the earth. There is no place on the earth without corrosion. Where corrosion exists, there must be corrosion objects. This shows that the corrosion can never exist independently. Its existence, generation, elimination is accompanied by corroded matters, even a point, a needle eye is also like this. Even a corroded dot could cause disaster. Therefore, our earth is always jeopardized by corrosion, only the degree of corrosion and harm are different. Because the interaction degree and factors between the corroded matter and environment are different, even a point, a line, a surface, a body on the corroded matter and the degree of interaction between the environment is different, the factors are different! Therefore, it is necessary to have a deep and clear identification for the universality of corrosion. With accurate identification, clear identification and complete identification, that identifying the presence location is a very important problem to solve the corrosion problem fundamentally.

2）The properties of corrosion

The properties of corrosion are hidden, gradual engulfing, sudden destruction, and there is always the hidden danger of major accidents like personal injury, environmental pollution and other major accidents. In this regard, as engaged in corrosion control personnel need to have a calm, sober, deep thinking. There is a saying that" It is easy to dodge an open spear thrust, but difficult to guard against an arrow in the dark". It is more difficult to solve the very hidden corrosion than to solve the geometric size, structure, strength, hardness and other difficulties on the surface of the device and facility, which is the first difficulty. The second difficulty is to deal with the progressive devouring property. There is also the third difficulty of always having irregular and nonconstant properties. At the same time, the factors that cause corrosion are mostly dynamic, which is the fourth difficulty. Not only that, the hidden danger of major accidents, like personal injury, environmental pollution and other major accidents, is the fifth difficulty. We must always be vigilant. This is the third problem, which must be deeply thought, research and so on, to fundamental and comprehensive solve to the corrosion.

The whole world is full of corrosion. There is no part of the world that is not corroded. Wherever there is corrosion, there must be corroded things. Therefore, the fight against corrosion must stand at the height of the whole world, and carry out international communication, discussion and cooperation with the goal of the common cause of the world, so as to carry out corrosion control, which is the meaning of international. Corrosion control is not only a single science and technology and its standards, the lesson of reality has sounded the alarm for human many times! We learned that "corrosion control completely is an engineering". The concept of engineering is the integration process of engineering elements, including science and technology elements and non-science and technology elements, is the unity of science and technology elements and non-science and technology elements. These elements interact and restrict each other, among which the scientific and technological elements constitute the core of the engineering and the non-scientific and technological elements constitute the guarantee of the engineering. The success or failure of engineering is determined not only by scientific and technical elements, but also more often by non-scientific and technical elements. This is where the concept of corrosion control engineering comes from, as stated in the China-US joint proposal. The life cycle is only the positioning of the life length, stage, range and target of the corrosion control process. And here the life cycle refers to the goal of control during the whole process which is similar to the human life that is from the cradle to the grave.