計器の階級について
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A類計器は強制検定が必要ですか？連鎖計器はA類計器に属するべきですよね？オンライン分析計に強制検定の要件はありますか？
圧力計、警報器は強制検定A類に該当する
強制検定は安全、環境保護、貿易などに関わるものです
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