1、YS/T 273.14-2008w;=al+b;+o(1)式中:试样中元素i的含量;L元素的X射线强度;a、b、c校正曲线常数。8精密度8.1重复性在重复性条件下获得的两次独立测试结果的测定值,在以下给出的平均值范围内,这两个测试结果的绝对差值不超过重复性限(r),超过重复性限(r)的情况不超过5%。重复性限(r)按以下数据采用线性内插法求得。表2组分含量/%重复性限(r)/%组分含量/%重复性限(r)/%51.250.300.0240.006F53.180.46Fe2O30.0870.01255.050.600.120.0212.700.130.190.01Al13.190.25SO0.49
2、0.0316.540.301.420.1223.390.110.00820.0012Na26.370.15P2O50.0250.00231.740.460.1630.0030.0730.0690.00900.0028SiO20.2050.02CaO0.0760.0060.510.040.7320.0098.2允许差实验室间分析结果的差值不大于表3所列允许差。表3组分含量范围/%允许差/%组分含量范围/%允许差/%F40.0060.000.700.100.500.05Al11.0018.000.30so0.501.000.10Na20.0035.000.501.002.000.150.0100.200.030.00100.0100.002SiO20.200.400.04P2O50.0100.1000.0050.400.600.050.100.300.020.0100.0300.0070.00600.0100.005FerO0.0300.1000.015CaO0.0100.1000.0080.100.500.030.101.000.03