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PFA容量瓶在什么溫度下進(jìn)行使用

2024-02-20 09:14:30點(diǎn)擊：
PFA容量瓶通常在20的條件下使用，以確保測量準確性。當液體的液面最凹點(diǎn)與頸部標線(xiàn)的刻度線(xiàn)相切時(shí)，這表示瓶?jì)鹊囊后w體積恰好達到了容量瓶的標稱(chēng)容量。值得注意的是，這一標識還明確了該容量瓶的溫度適用范圍為20，這意味著(zhù)在此溫度下測得的溶液體積最為準確。
盡管PFA材料的耐溫范圍為-20至200，但作為定容工具的容量瓶在使用時(shí)需要特別注意溫度條件。參照玻璃容量瓶的定容標準，PFA容量瓶同樣可以達到A級精度�？紤]到塑料在不同溫度下的收縮性差異，為確保測量結果的準確性，建議在20的室溫條件下使用PFA容量瓶。


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