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c/labresults·submitted 2 months ago by u/medutest_mel

why does nobody talk about below spec

Below Specbranch of 8 comments

why does nobody talk about below spec. I would rather ask a basic question now than get this wrong quietly for two months. WXT BPC, batch matched the paperwork, Janoshik came back 99.6% against a claimed 99.0%. Paid for it myself, posting it because the log is only worth anything if people do. Have now spent more on…

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8 comments, started 2 months ago
u/mei_cardoso16 points·2 months ago

Inter-lab variance on this assay runs roughly a point either way, driven mostly by gradient and integration. Two results inside that band agree; they do not disagree quietly.

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u/rina_bergstrom4 points·2 months ago

A series across separate lots estimates a process. Repeat tests on one lot estimate the measurement. Both are useful and they answer different questions.

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u/valeria_girard1 point·2 months ago

if you are going to test, test the thing you actually received

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u/priya_ogunleye-12 points·2 months ago

First result I ever posted here got asked for the batch number and the claim. Fair, and my posts have been better ever since.

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u/medutest_melOP0 points·2 months ago

Batch number and date of analysis?

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u/aurel_mwangi1 point·2 months ago

Do you have the trace, or only the summary?

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u/medutest_melOP1 point·2 months ago

Small fix — same supplier, different lot. The two rows in the log are not the same batch.

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u/hedda_aguirre10 points·2 months ago·edited

How many separate lots does your series cover?

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