DB421,一对纳氏比色管

一对纳氏比色管,200 mm,带玻璃反向半月形柱塞。

 

编号 354210

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产品信息

This is a pair of Nessler cylinders for use in the Nessleriser 2250, supplied with 70mm anti-meniscus plungers (354211) to provide the correct path length for the Dyed Aviation Gasoline test (ASTM D2392).