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寒区野战化验实验一、试剂防冻和冻后解冻实验实验结果表明,在零下15℃的情况下,有人造毛毡保暖套的箱子内的试剂不结冰。将装箱的试剂放在有保暖车篷的车上,零下20℃也不结冰;但在相同温度下,把箱子内的试剂取出置于露天有风的地方8小时,则都结冰。塑料瓶与玻璃瓶的保温效果大致相同,安瓿封装的试剂在零下15℃暴露8小时不结冰。没有结冰的试剂有:氢氧化钠、无水乙醇、酒精脱色剂、酚红、钙红指示剂、氯化物指示剂、硝酸汞试剂、硫代硫酸钠试剂、钾标准液、钠标准液、焦性锑酸钾试剂、沙黄溶液、磺柳酸试剂、班氏染液。但钙标准液、乙二胺四乙酸二钠、生理盐水、0.01N盐酸、0.02N盐酸、蒸馏水、革兰氏碘液、
Field cold field test experiment A, reagent antifreeze and thawed after thawing experimental results show that in the case of minus 15 ℃, the artificial felt blanket box reagent does not freeze. The boxed reagent on a car with a warm hood, minus 20 ° C nor icing; but at the same temperature, the removal of the reagents in the box placed in open air for 8 hours, are frozen. Plastic bottles and glass bottles of about the same thermal insulation, ampoule packaging reagents exposed to minus 15 ℃ 8 hours without freezing. No icing reagents are: sodium hydroxide, ethanol, alcohol bleaching agent, phenol red, calcium red indicator, chloride indicator, mercury nitrate reagent, sodium thiosulfate reagent, potassium standard solution, sodium standard solution, Pyrogallol potassium reagent, sand solution, sulfanilic acid reagent, Banci dye solution. However, calcium standard solution, disodium ethylenediaminetetraacetate, physiological saline, 0.01N hydrochloric acid, 0.02N hydrochloric acid, distilled water, Gram iodine solution,