烟卡

1

旧标准烟度卡烟度值Rb与新标准烟度值SF之间的关系

Relation Between Smoke Intensity Values on Old and New Rated Smoke Cards
2

但由于尚未发布实施新的标准烟度卡，而仍然使用旧的标准烟度卡（烟度值为Rb），因此给烟度测量造成了一定的误差。

However , new rated smoke card has not yet become effective , and original rated smoke card , of which symbol of smoke intensity value stipulated to be R b is still used , a definite error is therefore caused in smoke measurement .
3

标定烟度卡的烟度值修正

On Revising the Smoke Readings of the Rated Smoke Cards
4

烟度标准卡烟度值的换算

Conversion of Smoke Readings Through the Rated Cards