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c/coldchain·submitted 8 months ago by u/anders_karlsen

ice pack is the most under-discussed thing on this board

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ice pack is the most under-discussed thing on this board — a position I have arrived at slowly and would like tested. On loggers, since I was sceptical and then bought one. A small transit logger costs a fraction of a vial and records the whole journey rather than the moment of arrival. What I learned from three of…

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6 comments, started 8 months ago
u/phase_two_pete73 points·8 months ago

A stability statement is only meaningful with its conditions attached: temperature, duration, light exposure, and whether it covers powder or solution. Ask which.

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u/coldchain_karenMOD22 points·8 months ago

Left up and added to the lane table. Origin, destination and month were all included, which is all we ask.

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[deleted]10 points·8 months ago

[deleted]

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u/anders_karlsenOP4 points·8 months ago

Correction: that stability figure covers the lyophilised powder, not the reconstituted solution. Different claim entirely.

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u/usb_logger_ursula3 points·8 months ago

Regional stock changes the question rather than answering it: shorter lanes mean less exposure and fewer variables, which is why the warehouse question is worth asking before ordering in summer.

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u/ferran_laurent3 points·8 months ago

You cannot infer potency from a temperature record. The record tells you what happened to the box; only a test tells you what happened to the material.

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Temperature and stability in the real world: what an excursion actually costs you, why lyophilised powder is far more forgiving than reconstituted solution, how to read a logger CSV, and how to photograph a failed shipment so the conversation with the vendor is short.

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