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本标准适用于煤矿井下的光干涉型甲烷测定器(以下简称“仪器”)。一、技术要求1、仪器应坚固耐用、操作方便和易于维修,并应有效地防尘和适合于煤矿井下携带。2、仪器内装电路应符合安全火花型电气设备检验和防爆照明灯具检验要求。3、光学零件在组装成仪器后,不应有显著的和影响测量的霉蚀、气泡、砂眼、麻点、擦痕、指印和灰尘等。胶合光学零、部件胶合后,不应有脱胶现象。镀膜光学零件
This standard applies to coal mine light interference methane measuring device (hereinafter referred to as “instrument”). First, the technical requirements 1, the instrument should be durable, easy to operate and easy to maintain, and should be dustproof and suitable for carrying coal mine. 2, the instrument built-in circuit should be consistent with the safety of spark-type electrical equipment inspection and explosion-proof lighting test requirements. 3, optical components assembled into an instrument, there should be significant and affect the measurement of mildew, bubbles, trachoma, pitting, scratches, fingerprints and dust. Glue optical zero, after gluing parts, there should be no degumming. Coating optical components