本标准规定了试验方法，包括在大气压力下生成未发泡基层及其相应的泡沫水泥浆。这些程序适用于在大气条件下用空气发泡水泥浆，可模拟在井下条件下用氮气产生的泡沫质量；可以对其进行修改，以适应氮气等其他气体。本标准还将讨论用氮气发泡的泥浆及其性质，因为它们与本标准的范围有关。该标准不涉及在大气条件下的压力下的测试，该标准也不包括或考虑氮溶解度在氮分数计算中的影响。

This standard defines the test methods including the generation of unfoamed base and their corresponding foamed cement slurries at atmospheric pressure. These procedures are developed for foaming cement slurries with air, at atmospheric conditions, which could mimic a foam quality experienced with nitrogen at downhole conditions; they may be modified to accommodate other gases such as nitrogen. Slurries that are foamed with nitrogen, and their properties, will also be discussed within this standard as they are relevant to the scope of the standard.This standard does not address testing at pressures above atmospheric conditions, nor does this standard include or consider the effects of nitrogen solubility in the nitrogen fraction calculations.