NBN T 04-257-1983 7500 Adipate esters for industrial use - Measurement of colour after heat treatment《工业用已二酸酯 热处理后颜色测定》.pdf

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NBN T 04-259-1983 0625 Adipate esters for industrial use - Determination of ash - Gravimetric method《工业用已二酸酯 灰分测定 重力测定法》.pdf

NBN T 04-256-1983 7500 Adipate esters for industrial use - List of methods of test《工业用已二酸酯 试验方法列表》.pdf

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