Regarding the certification label for gauges such as pressure gauges
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The company has not established a measurement management system. Pressure gauges need to be fitted with green approval labels, which are available for purchase online; however, there are many different types of such labels. If one hires someone to customize the labels, it’s important to use the right wording on them. Only a “qualified” label is required; other types are not needed.
We use the same one as upstairs; the small white dots indicate the level