中国药典2000年版把注射用水描述为“纯化水经蒸馏所得的水”,并把细菌内毒素限度由0.5EU·ml-1修改为0.25EU·ml-1;重金属限度也明确量化为0.000 05％。虽纯化水规定了蒸馏、离子交换和反渗透三种制备方法,但注射用水只限定为纯化水经蒸馏所得的水。注射用水的化学纯度由纯化水 The Chinese Pharmacopoeia 2000 edition described injection water as “purified water distilled from water” and modified bacterial endotoxin limit from 0.5 EU · ml-1 to 0.25 EU · ml-1; the limit of heavy metals was also clearly quantified as 0.000 05% . Although purified water provides for distillation, ion exchange and reverse osmosis three preparation methods, but the water for injection is limited to purified water distilled water. The chemical purity of water for injection consists of purified water