AWS A4。4M:2001（R2016）建立了测定焊剂和焊条覆盖物含水量的标准程序。该测试涉及在高温下将样品在氧气载气中燃烧。通过卡尔·费舍尔滴定法或红外检测法测量样品中的水分或燃烧过程中形成的水分。这些方法与传统热重分析技术之间的主要区别在于包括仪器校准程序、系统验证检查以及使用更精确的分析技术进行水检测。

AWS A4.4M:2001(R2016) establishes standard procedures for determination of moisture content of welding fluxes and welding electrode coverings. The test involves combustion of a sample in an oxygen carrier gas at elevated temperature. Any water evolved from the sample or formed by the combustion process is measured by means of either Karl Fischer titration or infrared detection. The key differences between these methods and traditional thermo gravimetric techniques are the inclusion of instrument calibration procedures, system verification checks and use of more accurate analytical techniques for water detection.