机车车辆外部清洗剂,过去是日本国铁各局根据地方上的实际情况各自实行标准化的,1964年5月,改由国铁本部来决定。国铁本部于1975年1月11日颁布JRS69238-3A-11AR5S“机车车辆外部洗净用清洗剂”。现介绍其主要内容。 1.清洗剂种类 A型以草酸为主成分,具有除铁锈作用(由于闸瓦等原因造成的铁锈),适于定期清洗,其化学组成一例如下: 草酸(含水化物结晶体) 80～85％表面活性剂(烷基苯磺酸系列等) In the past, each of the Japanese National Railways (ITIB) offices standardized their own external cleaning agents according to the actual conditions on the ground. In May 1964, they were decided by the headquarters of the National Railways. National Rail headquarters promulgated JRS69238-3A-11AR5S “Cleaning agent for external washing of rolling stock” on January 11, 1975. Now introduce its main content. 1. Cleaner Type A type of oxalic acid as the main component, with the exception of rust (due to brake shoe and other causes of rust), suitable for regular cleaning, the chemical composition of an example as follows: oxalic acid (hydrate crystals) 80 to 85% Active agent (such as alkyl benzene sulfonic acid series)