■ 編者按

壬寅年漸行漸遠，癸卯年瑞雪迎春。值此新年之際，我們特意將發(fā)給國際腐蝕控制工程全生命周期標準化技術委員會主席Friedersdorf先生的信件（中英文版）提供給大家學習，以此作為對2023年元旦的獻禮以及新春致辭！這封信中不僅介紹了國際腐蝕控制工程全生命周期標準化技術委員會（ISO/TC156/SC1）成立的來龍去脈，更重要的是對腐蝕控制工程全生命周期有了更加統(tǒng)一、全面的認識，這為下一階段國際腐蝕控制工程全生命周期標準化工作的開展，提出了綱領性的指導意見，請大家認真貫徹執(zhí)行。

尊敬的Friedersdorf先生,

很高興在六月份收到您的回信，也很抱歉沒有及時地給您回信，因為我們本來想邀請您到中國進行交流，但由于疫情原因影響了我們的計劃。現(xiàn)在中國正在逐步恢復開放，我們也希望在不久后能邀請您來中國。另外，這期間我們也一直在嘗試解決ISO24239標準名稱的爭議問題，在您的支持和幫助下，ISO24239終于在11月2日按照原標準名稱正式發(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”這一國際標準化工作新領域的聯(lián)合提案國，共同推進了這一領域國際標準化工作的開展。為了今后更好地開展工作，我們也總結了從標委會成立到現(xiàn)在的工作（見附件），與您分享，也希望對您有所幫助。

附件是我們對腐蝕控制工程全生命周期國際標準化工作的一些總結和認識，正如我們一直強調的，腐蝕控制工程全生命周期國際標準化工作是一個全新領域還處于起步階段，我們也希望來自世界各國的專家共同不斷完善。我們也真誠地希望能夠盡快邀請您到中國來進行交流。

祝好！

附件：ISO/TC156/SC1的成立背景和對腐蝕控制工程全生命周期的認識

TC156/SC1中國專家組常務副組長 任振鐸

TC156/SC1中國代表 李濟克

2022年12月16日

（一）ISO/TC156/SC的成立

2016年，中美兩國聯(lián)合提出的成立腐蝕控制工程全生命周期標準化技術委員會這一新領域TC的新提案（ISO/TS/P254），經(jīng)一次172個ISO全體成員國投票和一次15個TMB全體成員投票通過，各國專家都肯定了新TC成立的必要性和可行性，當時TMB的日本代表給中國代表的郵件指出德國、英國、法國和日本等ISO成員存有對新TC和現(xiàn)有TC工作領域的潛在交叉和對新提案范圍界定不清晰的疑慮，建議進一步協(xié)調說明后以便TMB決定是否臨時或正式地批準成立新的TC（見附件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，突然“提出這一領域已經(jīng)包含在TC156中（聲稱見“TC156 戰(zhàn)略規(guī)化”中的第一章“介紹”和第二章“業(yè)務環(huán)境”，特別是2.1中的第二點），只不過還沒有一個活動工作項目”，并認為“TS/P254提案是非常富有成效的，但它應該作為一個新工作組或分技術委員會放在TC156下”（見附件2）。這迎合了當時部分成員國所擔心會發(fā)生與現(xiàn)有TC的延伸、重復、覆蓋的問題，加上ISO嚴格控制新標委會成立的背景，使得TMB會議不得不作出ISO/TMB75/2016號這樣的決議（見附件3），暫時先作為TC156的分技術委員會開展新領域的工作。并且ISO/TMB75/2016號決議還是“要求ISO/TC156向TMB提交一項修改其范圍的提案，使其能夠包含ISO/TS/P254提出的新的技術領域；進一步要求ISO/TC156建立一個新的分技術委員會開展新領域的工作”。而TC156提交修改后的范圍“金屬和合金的腐蝕的標準化，包括腐蝕測試方法，防腐蝕方法和腐蝕控制工程全生命周期。ISO內部這些領域活動的總協(xié)調”，TC156修改后的范圍顯然不符合決議的要求，因為它本身就包含不了“TS/P254提出的新技術領域”。

我們始終強調的是，TS/P 254提案成立的新TC是以腐蝕控制工程為對象，研發(fā)、制定腐蝕控制的工程需要擇優(yōu)選用相應的多少因素、什么樣的因素，通過什么樣的集成方法、技術、模式等建成腐蝕控制的工程，實現(xiàn)從根本上全面對相應腐蝕實施進行全生命周期控制的標準。而TC156是以金屬和合金的腐蝕為對象，研發(fā)、制定防護金屬和合金不被腐蝕的方法、腐蝕的試驗方法等的技術標準。兩者并沒有交叉、重復或沖突。腐蝕控制工程全生命周期作為一個工程，那就不單單牽涉擇優(yōu)選用耐蝕材料，還要針對腐蝕控制工程擇優(yōu)選用眾多的相適應的技術、研發(fā)、設計、制造、施工與安裝、貯存與運輸、調試與驗收、運行、測試檢驗、保養(yǎng)與維修、延壽與報廢、文件與記錄、資源管理、綜合評估等因素，對這些因素，不僅因素內要進行擇優(yōu)選用，還要進行因素間以及全局間的相互協(xié)調而擇優(yōu)選用, 我們并不去制定這些眾多因素的具體專業(yè)技術標準，僅制定要求去擇優(yōu)、協(xié)調選用現(xiàn)行的相應專業(yè)標準，確保腐蝕控制工程安全、經(jīng)濟、全生命周期和綠色環(huán)保運行的總目標，以便實現(xiàn)從根本上全面解決最大限度地減少腐蝕給人類造成的各種危害、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、對象、內容等都是完全不同的。經(jīng)六年來的實踐證明，除SC1外，原TC156自其成立以來沒有且不可能主導提出任何一個其戰(zhàn)略規(guī)劃中的所謂已經(jīng)包含SC1中的項目。

六年來SC1分技術委員會在非常困難的情況下開展新領域的工作，所制定的新領域的四項國際標準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險評價》、ISO 23221：2020《管道腐蝕控制工程全生命周期通用要求》等三項國際標準于2020年11月正式向全世界發(fā)布！SC1及其所制定標準的范圍既沒有出現(xiàn)是TC156及其它相關現(xiàn)有TC的延伸、又沒有出現(xiàn)和TC156及其它相關現(xiàn)有TC的重復、更沒有出現(xiàn)被TC156及其它相關現(xiàn)有TC所覆蓋！鐵錚錚的實踐充分證明了SC1及其所制定標準的范圍是絕對不屬于TC156的范圍，也清楚地回答了某幾個成員國擔心延伸、重復、覆蓋的疑慮。

而通過這幾年的交流、總結，我們對腐蝕控制工程全生命周期有了進一步的認識。

（二）對腐蝕控制工程全生命周期的認識

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

2. 中國有諺語：“有的放矢，”“有益為之，無益而不為?！眹H腐蝕控制工程全生命周期標準化所以是以腐蝕控制工程全生命周期為對象，制定出能夠有針對性有效性，從根本上全面解決“腐蝕”這個“的”的腐蝕控制工程全生命周期國際標準的這個“矢”，是基于對“腐蝕”本質有的放矢這個“的”的深刻認識、解析、研究的基礎上而有益為之！那么就是以腐蝕控制工程全生命周期為對象，立足于全球腐蝕控制工程全生命周期領域全局的高度，集全世界腐蝕控制領域中所有相關的科技因素資源和非科技因素資源之大成，對影響其相應腐蝕控制工程抗拒相應的腐蝕源，確保人身健康和生命財產(chǎn)安全、國家安全和生態(tài)環(huán)境安全經(jīng)濟運行的基礎上，求得經(jīng)濟、全生命周期和綠色環(huán)保的最佳效益為目標的全過程鏈條上的所有科技因素和非科技因素資源（如目標、腐蝕源、材料、技術、設計、研發(fā)、制造、施工與安裝、貯存與運輸、調試與驗收、運行、保養(yǎng)與維修、延壽與報廢、文件與記錄、資源管理、綜合評估等），開展其因素內、因素間及其全局間的擇優(yōu)性、協(xié)調性的選用；對其擇優(yōu)性、協(xié)調性選用的所有因素資源，通過運用科學、技術、有序有效性的工程化集成相應所有因素資源協(xié)調、優(yōu)化配置的全過程中，制定出一套具有整體性、系統(tǒng)性、相互協(xié)調優(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準，以實現(xiàn)其對相應腐蝕工程的有效性被動或主動的控制，被動或主動控制無效性時，即自動性報警！最終達到最佳最大限度地減少腐蝕工程給人類社會帶來的各種危害，并能完全杜絕或避免隱蔽性、漸進性、突發(fā)性腐蝕工程所造成相應重大安全、環(huán)保等事故的發(fā)生！

注：有效控制包括主動控制和被動控制，主動控制即把一切來犯之腐蝕控制于被保護對象之外，被動控制即抗拒一切來犯之腐蝕；控制無效時，自動報警即可實施預案將重大安全、環(huán)保隱患事故消滅在發(fā)生之前?。ň褪蔷姹粍涌刂坪椭鲃涌刂崎_始失效，被保護對象將開始受到隱蔽性、漸進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)腐蝕速率的測算，國際上的共識，大約需要5年左右時間）。

3. 這里特別強調是以“腐蝕”為對象而進行獨特的深入認識、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象，而專業(yè)性的深入運用冶金學、電化學、物理學化學、熱力學等進行相應具體的認識、解析、研究相應的腐蝕機理、腐蝕的檢測方法、檢測機具、檢測技術等進行相應標準的制 定等。

那么獨立的“腐蝕”究竟有是什么?又是什么因素造成了獨立的“腐蝕”？經(jīng)縱觀歷史、橫看世界全面對“腐蝕”進行獨特深入實際、實踐的認識、解析、研究、總結出“腐蝕”完全是一項某物與環(huán)境相互作用使其性能發(fā)生隱蔽性、漸進性變化過程的特殊性的特別重要工程！所以完全是一項特殊性的特別重要工程，是因為其完全是一項隱蔽性、漸進性又潛伏著極為重大安全、環(huán)保事故發(fā)生風險的、而不同于一般又往往被人們所忽視、不認識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“腐蝕”這個“的”切實弄清楚的前題下，方能更重要地研發(fā)制定出對“腐蝕”加以從根本上全面解決相應針對性、有效控制的“矢”；這個“矢”就是有針對性地解決和控制造成這個腐蝕工程“的”的所有因素！其中的科技因素構成了工程的內核，這就是“某物的本身和相應環(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、橋梁性構筑物等；相互作用過程中有可能產(chǎn)生新的腐蝕源，如尿素生產(chǎn)過程中產(chǎn)生的中間產(chǎn)物縮二脲等；而另外的非科技因素構成了工程的邊界，包括經(jīng)濟、政治、文化、社會和生態(tài)文明等。這就是從標準入手聯(lián)合美國成立國際腐蝕控制工程全生命周期標準化技術委員會的初衷！這是跨學科、跨領域的集成創(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、目標、物資、資金、方法等有機結合起來，通過對所有因素的整合，形成綜合優(yōu)勢，使工程系統(tǒng)總體上達到相當完備的程度；在此基礎上開展全集成與智能化系統(tǒng)的融合，這是當今國際社會21世紀的工程系統(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)為因素全球化流動即如工程全球化招標、物資全球化采購、信息全球化共享、人才全球化招聘等的科學技術發(fā)展競爭的目標和最高水平，加強、加快對這一科學技術在腐蝕控制工程領域中的實施應用，實現(xiàn)腐蝕控制工程全生命周期的最佳效益！），并非設計、材料、工藝領域的“線性創(chuàng)新”，是基于堅實的科學原理，它不是神話或幻想，而是對科學原理的創(chuàng)新性應用；這正是由顛覆性技術的本質所決定的：在新想法、新技術冒尖的時候，相當一部分人一般都不看好、不贊同，甚至無法理解，正象TMB日本成員Yasu郵件所說的“我相信這樣做對于確保ISO在這一領域技術工作更大的協(xié)調性和一致性是值得的，并且最終順利推進這一有趣的、困難的新項目。我相信，對于新項目更好的未來也是一個好的投入”。

附件1 TMB日本成員郵件

晨光：

非常感謝您對這一新提案的進一步說明。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相關性。而另一方面，仔細審視來自像德國、英國、法國和日本等ISO成員的意見，我作為TMB的成員，認為這些ISO成員表達的不僅僅是對新TC和現(xiàn)有TC工作領域的潛在交叉的疑慮，同樣還有對新提案范圍界定的不清晰的關注。因此，我認為對于TMB而言，的確有必要要求新提案的提案人在與相關TC協(xié)調后進一步修改完善工作范圍和工作框架，提交給TMB，TMB再決定是否臨時或正式地批準成立新的TC。我相信這樣做對于確保ISO在這一領域技術工作更大的協(xié)調性和一致性是值得的，并且最終順利推進這一有趣的、困難的新項目。我相信，對于新項目更好的未來也是一個好的投入。

希望您能理解我的好意。

祝好

Yasu

附件2 TC156主席、中央秘書處標準和政策主管、美國代表郵件記錄

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。

我的意見是這一領域已經(jīng)包含在TC156中，只不過還沒有一個活動工作項目。見“TC156戰(zhàn)略規(guī)劃”中的第1章“介紹”和第2章“業(yè)務環(huán)境”，特別是2.1中第二點。

我認為TS/P254提案是非常富有成效的，但它應該作為一個新工作組或分技術委員會放在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?；蛘呶覀冞€能做什么？

我會在TC156今年6月布拉格的會議上把這一問題提出來。在這這之前，我想先向您提出這個建議。

Goran TC156主席

2）ISO中央秘書處標準和政策主管 sophie將這封信轉發(fā)給了郭主任和美國代表steven：

晨光和Steven：

我剛剛收到了TPM（根據(jù)事實來回答）發(fā)來的這封信。我在想你們是否已經(jīng)聯(lián)系了中國的兩個秘書處（TC256（此處應該是筆誤，應該是TC156）和新TC）進行協(xié)商。

無論如何，這是給你們的新信息。

Sophie

3）美國代表Steven回復了Sophie郵件

sophie和晨光，

我已經(jīng)和晨光溝通了，作為ANSI的觀點，是靈活的，并且如果這是首選辦法的話，我們也會和中國一起共同有效地領導TC156下的新分會。

謝謝。

Steven

4）sophie回復了steven：

謝謝你的答復。至少從TC156來看他們認為這可以作為一個分技術委員會。我想我比較贊成這個解決方案，主要原因是如果我們能夠在現(xiàn)有體系內來制定需要的標準，我們可以避免造成利益相關方困惑，并且與我們TMB任務組（TMB TF）的建議保持一致。

期待著晨光的答復。

Sophie

附件3 范圍和決議

（一）TMB決議75/2016

TMB決議75/2016

TMB第66次會議通過，日內瓦（瑞士），2016年6月15-16

擴大ISO/TC156的范圍以包含一個新的技術活動領域——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提交一項修改其范圍的提案，使其能夠包含TS/P254提出的新的技術領域，進一步要求ISO/TC156建立一個新的分技術委員會開展新領域工作（秘書處由中國SAC 承擔）。

（二）ISO/TS/P254提出的新的技術領域的范圍

腐蝕控制工程全生命周期的標準化，包括術語和定義，通用要求以及腐蝕控制工程全生命周期的評價。工程生命周期是指被保護對象從基于材料選擇和保護措施的最初設計和開發(fā)，到施工、檢驗、評估、維護、退役的整個系統(tǒng)過程。

不包含金屬和合金腐蝕的領域的標準化（包括腐蝕測試方法和腐蝕阻止方法），涂料、顏料及相關產(chǎn)品（包括原材料）的標準化，有特殊要求的特定行業(yè)或 細分市場也不含在范圍內。

（三）TC156范圍

1. 原范圍

金屬和合金的腐蝕的標準化，包括腐蝕測試方法，防腐蝕方法。ISO內部這些領域活動的總協(xié)調。

2. 修改后范圍

金屬和合金的腐蝕的標準化，包括腐蝕測試方法，防腐蝕方法和腐蝕控制工程全生命周期（在5月6日的視頻會議上中央秘書處明確指出：這讀起來僅涉及“金屬和合金的腐蝕”）。ISO內部這些領域活動的總協(xié)調。

注：

1）腐蝕的特征

腐蝕的特征就是極具普遍性的存在，這里所說的極具就是說，腐蝕充滿了整個地球村、地球沒有不腐蝕的地方，凡是有腐蝕的地方，必然有被腐蝕的物所存在，這就表明腐蝕絕對不可能是獨立存在的，其永遠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，即使一個點、一個針眼同樣如此！蟻穴潰堤，一個針眼上的腐蝕都有可能造成人仰馬翻、災難大禍，所以，整個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，因為引起腐蝕的物與環(huán)境相互作用的程度不同、因素不同，即是一個點、一條線、一個面、一個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，對腐蝕的極具普遍性必須要有一個深刻清醒的識別，識別準、識別清、識別全，這是從根本上全面解決腐蝕問題的一個極為重要的識別存在位置的問題。

2）腐蝕的屬性

腐蝕的屬性就是極具隱蔽性、漸進性的吞噬、突發(fā)性的破壞，而且有始終存在著極具風險的人身傷亡、環(huán)境污染等重大事故發(fā)生的隱患。對此，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：這里所說的極具隱蔽性就是說“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、設施明面上的幾何尺寸大小、結構、強度、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，造成腐蝕的因素多數(shù)又是動態(tài)的，這是第四難；還不僅如此，而且始終還存在著極具風險性的人身傷亡、環(huán)境污染等重大事故發(fā)生隱患的第五難！你不時刻倍加警惕能行嗎！這是從根本上全面解決腐蝕問題的第三個極為必須深入思考、研習、精心等的問題。

腐蝕充滿了整個世界，世界沒有不腐蝕的地方，凡是有腐蝕的地方，必然有被腐蝕的物的存在，所以對腐蝕的斗爭必須要站在全世界的高度，以世界性的共同事業(yè)為重任進行國際性的交流、探討、合作，開展腐蝕的控制，這就是國際性的含義。腐蝕的控制不僅僅是單一性的科學技術及其標準，現(xiàn)實血的教訓已經(jīng)多次給人類敲響了警鐘！我們從中深刻地認識到“腐蝕控制完全是一個工程”。工程的概念就是工程要素的集成過程、包括科學技術要素與非科學技術要素、是科學技術要素與非科學技術要素的統(tǒng)一體，兩類要素又相互作用、相互制約，其中科學技術要素構成了工程的內核，非科學技術要素構成了工程的保證。工程的成功與失敗也不僅僅是科學技術要素就能決定的，甚至更多的時候取決于非科學技術要素。這就是腐蝕控制工程概念的來源，這在中美聯(lián)合提案中就已表述。而全生命周期僅僅是對腐蝕控制過程的壽命長、短，階段、界限，目標的定位。而這里全生命周期是指像人的生命“從搖籃到墳墓”整個的一個全過程的目標進行控制 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，大老板啊，當然瞧不起我，沒準我畢業(yè)后還跟你打工哩。我呸。做日本浪夢。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.