GLPHubglpresearchhub.com
Read-only archive. GLP Research Hub is a static community record — nothing here is for sale, no account is needed, and no vote you cast is counted. Why?
Single comment threadYou are looking at one branch of [Discussion] can we stop arguing about lyophilised until somebody posts a number — 23 comments in the full submission. View in context.
329
c/coldchain·submitted 3 months ago by u/search_before_post

[Discussion] can we stop arguing about lyophilised until somebody posts a number

Discussionbranch of 9 comments

can we stop arguing about lyophilised until somebody posts a number, and I want the answer with the reasoning attached rather than just the conclusion. Gel packs are designed for a duty cycle. A liquid pack at the end of a longer-than-expected transit is a pack behaving as specified, not evidence of an excursion in…

Read the full submission and all 23 comments →

This branch

9 comments, started 3 months ago
u/mod_cold_roomMOD47 points·3 months ago

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

replysharereportpermalink
[deleted]33 points·3 months ago

[deleted]

replysharereportpermalink
u/noor_cardoso27 points·3 months ago

Small fix — refrigerated, not frozen, once it is in solution.

replysharereportpermalink
u/ewan_tulloch22 points·3 months ago

That is the ambient temperature at the destination, not the temperature inside the box. The logger measures the second one.

replysharereportpermalink
u/intent_to_treat11 points·3 months ago·edited

Agreed on seasonality. The same lane in February and August is not the same lane.

replysharereportpermalink
u/nadia_kjaer7 points·3 months ago

ask what storage condition the stability statement was written against

replysharereportpermalink
u/noor_cardoso5 points·3 months ago

ask which lines are held in regional stock before you order in July

replysharereportpermalink
u/marta_ilunga1 point·3 months ago

A transit temperature logger records a distribution, and time above a threshold matters as much as peak temperature. That is the argument for logging rather than guessing.

replysharereportpermalink
load more comments (1) →

← back to the whole thread

About c/coldchain

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.

27kmembers
95submissions
Oct 2023created
submissions / month, last year
Sponsored

Sigma-Aldrich Standards

Certified reference materials for peptide identity and purity work.

sigmaaldrich.com
More in c/coldchain
c/coldchain rules
  1. Excursion claims need a logger trace or a photo taken at unboxing. "It felt warm" is not data.
  2. No tracking numbers, ever. They identify you and the recipient.
  3. Stability claims need a source or an explicit "this is my guess" label.
  4. Independent community. Nobody here sells anything, and anyone who tries is banned.
  5. Not medical advice. Describe what you did; never prescribe to a stranger.
  6. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
  7. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
  8. No contact handles, wallet addresses or tracking numbers — they identify people.
  9. Be recognisably decent. Disagree hard, insult nobody.
Full rules and how they are enforced →
Moderators
u/mod_cold_roomu/coldchain_karenu/ice_pack_auditu/usb_logger_ursula
Volunteers. Unpaid, unaffiliated, and reachable through modmail only.
Before you read on

Several compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.

Full disclaimer →