附件二：1项化工行业标准修改通知单HG/T3259-2004《工业水合肼》第1号修改单○1将3.2工业水合肼应符合表1要求。表1要求指标8064554035指标名称优等品一等品合格品合格品合格品合格品合格品水合肼质量分数（N2H4•H2O），%≥肼(N2H4)质量分数，%≥80.051.280.051.280.051.264.041.055.035.240.025.635.022.4不挥发物质量分数，%≤0.0100.0200.0500.070.09——铁(Fe)质量分数，%≤0.00050.00050.00050.0050.009——重金属（以Pb计）质量分数，%≤0.00050.00050.00050.0010.002——氯化物（以Cl计）质量分数，%≤0.0010.0030.0050.010.030.050.07硫酸盐（以SO4计）质量分数，%≤0.00050.0020.0050.0050.0050.0050.01总有机物(mg/L)5pH（1%水溶液）10~11修改为：3.2工业水合肼应符合表1要求。表1要求指标1008064554035指标名称合格品优等品一等品合格品合格品合格品合格品合格品水合肼质量分数（N2H4•H2O），%≥肼(N2H4)质量分数，%≥100.064.080.051.280.051.280.051.264.041.055.035.240.025.635.022.4不挥发物质量分数，%≤0.0030.0100.0200.0500.070.09——铁(Fe)质量分数，%≤0.00050.00050.00050.00050.0050.009——重金属（以Pb计）质量分数，%≤0.00050.00050.00050.00050.0010.002——氯化物（以Cl计）质量分数，%≤0.0050.0010.0030.0050.010.030.050.07硫酸盐（以SO4计）质量分数，%≤0.00050.00050.0020.0050.0050.0050.0050.01总有机物(mg/L)300240240240192165120105pH（1%水溶液）10~11○2将4.3.4.1条公式中M1均改为M1/4。○3将4.3.4.2条公式中M2均改为M2/4。1
