JJF (Petrochemical) 007-2018 "Pencil hardness tester calibrating specification" is a technical specification issued by the Ministry of Industry and Information Technology of China. It was released on April 30, 2018 and implemented on July 1 of the same year. The specification specifies in detail the calibrating conditions, items, methods and results of Pencil hardness testers, which are suitable for Pencil hardness testers that comply with GB/T 6739-2006 and ISO 15184:2012 standards. The main content includes test principle, instrument structure, Measurement characteristics, etc., to ensure the accuracy and Reliability of hardness gauge.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | (N) 仪器、仪表 | ICS | |
| Release Date | 2018-04-30 00:00:00 | Implementation Date | 2018-07-01 00:00:00 |










