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    "title": "Cold Chain Basics: Keeping Vials Cold in Transit",
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            "q": "What temperature range should refrigerated lab vials stay within during shipping?",
            "a": "The standard target is 2–8 °C (36–46 °F). Going above the upper limit or dropping below 0 °C both count as temperature excursions and can degrade sensitive materials."
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            "q": "What is a conditioned gel pack and why is it used instead of a fully frozen pack?",
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