Kozlowski L T, Rickert W S, Pope M A, Robinson J C
Am J Public Health. 1982 Jun;72(6):597-9. doi: 10.2105/ajph.72.6.597.
We describe a technique that enables individuals to detect the number of puffs taken on a filter cigarette by comparing the "color" of the spent filter to a color scale that simulates the appearance of filters exposed to low-, standard-, or high-yield smoking-machine regimens. Average ratings of filters by 11 subjects correlated almost perfectly with the number of standard puffs to which the filters had been exposed. (Am J Public Health 1982; 72:597-599.)
我们描述了一种技术，通过将用过的过滤嘴的“颜色”与一个模拟暴露于低、标准或高产量吸烟机方案下的过滤嘴外观的颜色量表进行比较，使个人能够检测出在过滤嘴上吸的口数。11名受试者对过滤嘴的平均评级与过滤嘴所接触的标准口数几乎完全相关。（《美国公共卫生杂志》1982年；72:597 - 599）
