甲苯二异氰酸酯中同分异构体含量比例的测定气相色谱法

气相色谱图Р2,4-甲苯二异氰酸酯和2,6-甲苯二异氰酸酯混合物的典型气相色谱图,见图A.1。Р Р图A.1 2,4-甲苯二异氰酸酯和2,6-甲苯二异氰酸酯混合物的典型气相色谱图Р附录 BР(资料性附录)Р精密度-重复性试验数据Р精密度-重复性试验数据见表B.1。Р表B.1 精密度-重复性试验Р面积百分比(%)Р样品1(2,4-TDIР含量比例为20%)Р样品2(2,4-TDIР含量比例为40%)Р样品3(2,4-TDIР含量比例为60%)Р样品4(2,4-TDIР含量比例为80%)Р编号Р2,4-TDIР2,6-TDIР2,4-TDIР2,6-TDIР2,4-TDIР2,6-TDIР2,4-TDIР2,6-TDIР1Р18.8Р81.2Р41.3Р58.7Р60.5Р39.5Р79.9Р20.1Р2Р18.8Р81.2Р41.4Р58.6Р60.5Р39.5Р79.8Р20.2Р3Р18.8Р81.2Р41.3Р58.7Р60.5Р39.5Р80.0Р20.0Р4Р18.9Р81.1Р41.4Р58.6Р60.5Р39.5Р80.0Р20.0Р5Р18.8Р81.2Р41.4Р58.6Р60.5Р39.5Р80.0Р20.0Р6Р18.8Р81.2Р41.3Р58.7Р60.5Р39.5Р80.0Р20.0Р7Р18.7Р81.3Р41.4Р58.6Р60.5Р39.5Р80.0Р20.0Р8Р18.8Р81.2Р41.3Р58.7Р60.5Р39.5Р80.0Р20.0Р9Р18.8Р81.2Р41.4Р58.6Р60.5Р39.5Р80.0Р20.0Р10Р18.8Р81.2Р41.4Р58.6Р60.5Р39.5Р80.0Р20.0Р标准偏差(%)Р0.05Р0.05Р0.05Р0.05Р0Р0Р0.07Р0.07Р_________________________