ASTM G84-2020

ASTM G84 在大氣腐蝕測試中表面暴露在潮濕條件下濕潤時間的測量

ASTM G84-2020發行信息

標準號ASTM G84-2020

中文名 在大氣腐蝕測試中表面暴露在潮濕條件下濕潤時間的測量的標準操作規程

英文名 Standard Practice for Measurement of Time-of-Wetness on Surfaces Exposed to Wetting Conditions as in Atmospheric Corrosion Testing

發布日期2020

實施日期

廢止日期無

國際標準分類號17.040.20 (Properties of surfaces)

發布單位US-ASTM

ASTM G84-2020適用范圍

1.1 This practice covers a technique for monitoring time-of-wetness (TOW) on surfaces exposed to cyclic atmospheric conditions which produce depositions of moisture.

1.2 The practice is also applicable for detecting and monitoring condensation within a wall or roof assembly and in test apparatus.

1.3 Exposure site calibration or characterization can be significantly enhanced if TOW is measured for comparison with other sites, particularly if this data is used in conjunction with other site-specific instrumentation techniques.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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.

1.6 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.

1.1本規程涵蓋了一種用于監測暴露于產生水分沉積的周期性大氣條件下的表面上的濕潤時間（TOW）的技術。

1.2本規程也適用于檢測和監測墻壁或屋頂組件內以及試驗裝置內的冷凝。

1.3如果測量TOW以與其他現場進行比較，尤其是如果該數據與其他現場特定儀器技術結合使用，則可顯著增強暴露現場校準或表征。

1.4以國際單位制表示的數值應視為標準值。本標準不包括其他計量單位。

1.5本標準并非旨在解決與其使用相關的所有安全問題（如有）。本標準的使用者有責任在使用前建立適當的安全、健康和環境實踐，并確定監管限制的適用性。

1.6本國際標準是根據世界貿易組織技術性貿易壁壘（TBT）委員會發布的《關于制定國際標準、指南和建議的原則的決定》中確立的國際公認標準化原則制定的。