Heat fixation is performed by the rapid passage of the air - dried smear two or three times over the flame of the bunsen burner 热固定是将空气中乾燥的抹片快速地在本生灯火焰上通过二或三回。
2.
The specimens may not burn with flaming combustion for more than 30 seconds after either application of the test flame 在每一次本生灯火焰燃烧10秒钟移开后没有任何一个试片被火焰点燃超过30秒钟。
3.
The specimens may not burn with flaming combustion for more than 10 seconds after either application of the test flame 在每一次本生灯火焰燃烧10秒钟移开后，没有任何一个试片被火焰点燃超过10秒钟。
