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JJG678-2007《催化燃烧式甲烷测定器》检定规程是甲烷测定器的检定依据。下面笔者结合甲烷便携式仪器(以下简称“便携仪”)实际检定工作,就JJG678-2007中关于便携仪的部分内容提出几点建议。一、关于通用技术要求JJG678-2007没有对标注量程进行要求。在工作中,笔者发现有些便携仪没有标注量程,有些随意扩大量程,这样就显得比较混乱。因此,笔者建议便携仪
JJG678-2007 “catalytic combustion methane analyzer” verification protocol is the basis for the determination of methane detector. The following combination of methane portable instrument (hereinafter referred to as “portable instrument ”) the actual verification of work on JJG678-2007 on the part of the portable instrument made a few suggestions. First, on the general technical requirements JJG678-2007 no marking requirements for the range. At work, I found that some portable devices are not marked range, some free to expand the range, so that it is more confusing. Therefore, I suggest portable instrument