ASTM G198-17(2023) PDF
Standard Test Method for Determining the Relative Corrosion Performance of Driven Fasteners in Contact with Treated Wood
Standard Test Method for Determining the Relative Corrosion Performance of Driven Fasteners in Contact with Treated Wood
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 1 ноября 2023 г.
- Издание:
- G198
- ICS:
- 21.060.01
SIGNIFICANCE AND USE 5.1 This test method provides controlled environments which are utilized to produce corrosion of metal, metal-coated, or nonmetallic-coated smooth or deformed shank driven fasteners in contact with treated wood exposed to the given test environments. The test method provides information that can be used to evaluate the corrosion resistance of metal, metal-coated, or nonmetallic-coated smooth or deformed shank driven fasteners in contact with different chemical wood treatments. 5.2 The results shall be used for comparative purposes only and they shall not be correlated to exposure time in natural environments. 5.3 The reproducibility of results in these types of tests is highly dependent on the type of samples tested and the evaluation criteria selected, as well as the control of the operating variables. SCOPE 1.1 This test method covers and focuses on the corrosion resistance of metal, metal-coated, and nonmetallic-coated smooth and deformed shank driven fasteners in contact with treated wood in exterior or high moisture exposure applications using comparative tests with control fastener specimens of standardized benchmarks. This test method may be used for preservative-treated wood. 1.2 This test method describes the apparatus, procedure, and conditions required to maintain test environments for the Cyclic Fog Test and the Steady State Moisture Test. 1.3 This test method describes the types of test samples, lists exposure periods, and gives guidance on interpretation of results. 1.4 Until experience is gained comparing laboratory-to-laboratory results with this test method, comparisons of fasteners, coatings, materials, or preservatives shall be made only within the results of the same test. 1.5 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Abstract
Overview
ASTM G198-17(2023), titled Standard Test Method for Determining the Relative Corrosion Performance of Driven Fasteners in Contact with Treated Wood, is a key standard developed by ASTM International. This document defines laboratory test methods to evaluate the corrosion resistance of metal, metal-coated, and nonmetallic-coated fasteners, especially those used in exterior or high-moisture environments and in contact with chemically treated wood. The procedures ensure standardized comparison of corrosion performance under controlled conditions, supporting industry efforts to select suitable fasteners for treated wood applications.
Key Topics
- Corrosion Resistance of Fasteners: Focuses on driven fasteners such as nails, screws, and similar hardware, considering both smooth and deformed shank types.
- Interaction with Treated Wood: Recognizes the effects of various wood preservatives on fastener corrosion, an essential concern for safety and longevity in construction.
- Controlled Test Environments: Outlines two primary testing procedures:
- Steady State Moisture Test: Exposes samples to constant high humidity and temperature.
- Cyclic Fog Test: Subjects samples to alternating periods of fog and drying, simulating natural exposure cycles.
- Comparative Evaluation: Results are meant for comparison among test specimens within the same controlled test-not as direct predictors of real-world service life.
- Test Samples and Controls: Specifies requirements for fastener and wood specimens, including the need for proper controls such as hot-dip galvanized and bright (uncoated) fasteners.
Applications
ASTM G198-17(2023) delivers practical guidance for:
- Building and Construction: Helps builders, architects, and engineers select fasteners that are reliably resistant to corrosion when used with pressure-treated wood in decking, fencing, and outdoor structures.
- Fastener Manufacturing: Enables manufacturers to compare the corrosion resistance of new coatings and materials against established benchmarks, ensuring compliance with industry expectations.
- Wood Treatment and Supply: Facilitates compatibility assessments between treated wood formulations and various fastening materials, reducing failures due to accelerated corrosion.
- Research and Quality Control: Provides laboratories with standardized test methods for evaluating new fastener designs, coatings, and preservative treatments, driving advancements in corrosion protection.
Related Standards
The following standards are frequently referenced with ASTM G198-17(2023) to ensure comprehensive evaluation and consistency:
- ASTM A153/A153M - Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
- ASTM B117 - Practice for Operating Salt Spray (Fog) Apparatus
- ASTM G85 - Practice for Modified Salt Spray (Fog) Testing
- ASTM D4442; ASTM D4444 - Test Methods for Moisture Content of Wood and Calibration of Moisture Meters
- AWPA U1-09 - American Wood Protection Association Use Category System for Treated Wood
- ASTM G1; ASTM D610; ASTM G193 - Cover corrosion and rust evaluation, and terminology
Practical Value
Implementing ASTM G198-17(2023) supports durability and safety in wood structures by identifying suitable corrosion-resistant fasteners for treated wood. The detailed guidance on laboratory testing minimizes risks associated with premature fastener failure, extends structure service life, and improves the overall sustainability of construction practices involving wood preservatives.
Keywords: corrosion testing, driven fasteners, treated wood, metal-coated fasteners, nonmetallic fasteners, cyclic fog testing, moisture test, wood preservatives, fastener corrosion resistance, ASTM standards
Технические детали
- Технический комитет
- G01 - Corrosion of Metals
- SKU
- ASTM G198-17(2023)
Похожие стандарты
Другие стандарты ASTM
ASTM-TPT-47
Phase I & Phase II Environmental Site Assessment Processes
Phase I & Phase II Environmental Site Assessment Processes
ASTM-TPT-8
Phase I Environmental Site Assessment Practices For Commercial Real Estate: Phase I Site Assessment & Transac…
ASTM-TPT-1137
ASTM D975 Standard Specification for Diesel Fuel
ASTM D975 Standard Specification for Diesel Fuel
ASTM-TPT-1202
ASTM D8421 Standard Test Method for Determination of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous Ma…
ASTM D8421 Standard Test Method -- eLearning Course
ASTM-TPT-691
Microaprendizagem para D4057: Amostragem de ponto (PT)
D4057 Microlearning: Spot Sampling Portuguese
ASTM-TPT-1091
Metodo de prueba estandar D4052 de ASTM -- Curso de aprendizaje electrónico (ES)
Modulo eLearning para ASTM D4052 en espanol
ASTM ACEM20180086
Using Neutron Radiography to Quantify the Settlement of Fresh Concrete
Specifications have been implemented for concrete bridge decks in North America that restrict the use of higher slump concrete mixtures primarily because of concerns about differential settlement and…
ASTM ACEM20180041
Experimental Study of Competing Failure of Reinforced Concrete Based on the Weibull Distribution
To predict the failure lifetime of reinforced concrete, a current accelerating corrosion test was performed on concrete by simulating the environment in an area with saline soil. To study the concret…