Lubricants,industrial oils and related products(class L)—Classification—Part 13:Family A(Total loss systems)
MOD ISO 6743-1:2002
全国石油产品和润滑剂标准化技术委员会石油燃料和润滑剂分技术委员会(SAC/TC 280/SC1)
GB/T 7631的本部分规定了L类（润滑剂、工业用油和有关产品）的A组（全损耗系统）产品的详细分类。
本部分宜与GB/T 7631.1联系起来理解。
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