TAPPI T 418 cm-17用于测定胶水、酪蛋白、尿素和三聚氰胺甲醛树脂、胺和酰胺聚合物以及纸和纸板中其他含氮有机材料中的氮。该测定不包括硝基化合物、硝酸盐、亚硝酸盐、偶氮、肼、氰化物或吡啶环类化合物中的所有氮，这些化合物通常不存在于纸和纸板中。有关替代测定氮化合物的更多信息，如Hengar技术，可在文献（1）中找到。

TAPPI T 418 cm-17 is used for the determination of nitrogen from glue, casein, urea- and melamine-formaldehyde resins, amine and amide polymers, and other nitrogenous organic materials in paper and paperboard.The determination does not include all the nitrogen in nitro compounds, nitrates, nitrites, azo, hydrazine, cyanide, or pyridine ring-type compounds, which are not normally found in paper and paperboard.Further information about alternate determination of nitrogen compounds such as the Hengar technique can be found in the literature (1).