AMPP TM21559-2025 多变量动态加速腐蚀试验方法

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AMPP TM21559-2025

Issued June 11, 2025

reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording,

or otherwise) without the prior written permission of AMPP.

Multivariate Dynamic Accelerated

Corrosion Test Method

Provided by Accuris under license with NACE

No reproduction or networking permitted without license from Accuris

AMPP values your input. To provide feedback on this standard, please contact: standards@ampp.org

AMPP TM21559-2025

Multivariate Dynamic Accelerated

Corrosion Test Method

This AMPP standard represents a consensus of those individual members who have reviewed this document, its scope,

and provisions. Its acceptance does not in any respect preclude anyone, whether he or she has adopted the standard

or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not in conformance

with this standard. Nothing contained in this AMPP standard is to be construed as granting any right, by implication or

otherwise, to manufacture, sell, or use in connection with any method, apparatus, or product covered by Letters Patent,

or as indemnifying or protecting anyone against liability for infringement of Letters Patent. This standard represents

minimum requirements and should in no way be interpreted as a restriction on the use of better procedures or materials.

Neither is this standard intended to apply in all cases relating to the subject. Unpredictable circumstances may negate

the usefulness of this standard in specic instances. AMPP assumes no responsibility for the interpretation or use of

this standard by other parties and accepts responsibility for only those ofcial AMPP interpretations issued by AMPP

in accordance with its governing procedures and policies which preclude the issuance of interpretations by individual

volunteers.

Users of this AMPP standard are responsible for reviewing appropriate health, safety, environmental, and regulatory

documents and for determining their applicability in relation to this standard prior to its use. This AMPP standard may

not necessarily address all potential health and safety problems, or environmental hazards associated with the use of

materials, equipment, and/or operations detailed or referred to within this standard. Users of this AMPP standard are

also responsible for establishing appropriate health, safety, and environmental protection practices, in consultation with

appropriate regulatory authorities, if necessary, to achieve compliance with any existing applicable regulatory require-

ments prior to the use of this standard.

CAUTIONARY NOTICE: AMPP standards are subject to periodic review and may be revised or withdrawn at any time

in accordance with AMPP technical committee procedures. AMPP requires that action be taken to reafrm, revise, or

withdraw this standard no later than ve years from the date of initial publication and subsequently from the date of each

reafrmation or revision. The user is cautioned to obtain the latest edition. Purchasers of AMPP standards may receive

current information on all standards and other AMPP/NACE/SSPC publications by contacting AMPP Customer Sup-

port, 15835 Park Ten Place, Houston, Texas 77084-5145 (Tel: +1-281-228-6200, email: customersupport@ampp.org).

Document History:

2025-06-11: Issued by AMPP Standards Committee (SC) 07, Defense & Aerospace

Provided by Accuris under license with NACE

No reproduction or networking permitted without license from Accuris

AMPP TM21559-2025

Multivariate Dynamic Accelerated

Corrosion Test Method

Foreword, Rationale ........................................................................................................................................................4

Referenced Standards and Other Consensus Documents .............................................................................................4

Section 1 Scope ........................................................................................................................................................4

Section 2 Denitions .................................................................................................................................................4

Section 3 Apparatus ..................................................................................................................................................5

Section 4 Test Specimen Construction, Preparation, and Position during Exposure ................................................ 5

Section 5 Salt Solution ..............................................................................................................................................7

Section 6 Facilities Requirements .............................................................................................................................7

Section 7 Conditions in the Salt Spray Chamber ......................................................................................................8

7.1 Temperature ................................................................................................................................8

7.2 Atomization and Quantity of Fog ................................................................................................. 8

7.3 Relative Humidity ........................................................................................................................8

Section 8 Continuity of Exposure ..............................................................................................................................9

Section 9 Period of Exposure..................................................................................................................................10

Section 10 Reporting on Test Method Compliance ...................................................................................................10

Other Referenced Documents .......................................................................................................................................11

Bibliography ................................................................................................................................................................11

Appendix A Example Calculations for Solution Collection Rates (Nonmandatory) ....................................................12

FIGURES

Figure 1 Top View of Recommended Assembly Properties and Scribe Pattern for Coating Inhibitor Screening .......... 6

Figure 2 Fog and Relative Humidity Cycle Schedule ......................................................................................................9

TABLES

Table 1 Salt Solution Information ....................................................................................................................................7

Table 2 Fog Event and Relative Humidity Control Program ..................................................................................9

Table A1 Calculation Sheet for Reporting Solution Collection Rates Following a 6-hour Fog Event .....................12

Table A2 Example Data and Calculations for a Passing Solution Collection Rate Measurement

Following a 6-hour Fog Event .................................................................................................................12

Table A3 Example Data and Calculations for a Single Failing Solution Collection Rate Measurement

Following a 6-hour Fog Event .................................................................................................................13

Table A4 Example Data and Calculations for an Average Failing Solution Collection Rate Measurement Following

a 6-hour Fog Event .................................................................................................................................13

Provided by Accuris under license with NACE

No reproduction or networking permitted without license from Accuris

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标签： #腐蚀 #试验方法

摘要：

本文档详细介绍了AMPP TM21559-2025标准，即多变量动态加速腐蚀试验方法。该标准由国际材料防护与性能协会（AMPP）发布，旨在为材料及涂层系统在复杂动态环境下的耐腐蚀性能提供更贴近实际工况的加速评估手段。与传统的静态或单一变量腐蚀试验不同，TM21559-2025创新性地整合了温度、湿度、侵蚀性离子浓度、应力及周期循环等多重变量，通过动态调控试验过程，模拟材料在工业大气、海洋环境或化工场所中可能遭遇的协同腐蚀作用。该标准规范了试验装置要求、参数设定准则、样品制备流程及腐蚀速率的量化判

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