The Peptide CommonsEst. May 2024
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Tags · Sourcing

documentation quality

Completeness, internal consistency and traceability of supplier paperwork.

102 topics 40 solved Group: Sourcing

Related in this group: certificate of analysis · batch & lot numbers · Janoshik Analytical · Medutest · PeptideMeter · VendorInvestigate · third-party testing · blind sampling · underdosing · mislabelling · customs · shipping

102 topics · page 2 of 4

TopicParticipantsRepliesViewsActivity
Purity assay versus content assay: two different numbers
On the subject in the title: Purity assay versus content assay: two different numbers Working notes rather than a conclusion. Asking about purity assay versus content assay directly, because I have read four…
SSTDSLMITH+6 10 24k 25d
Batch numbers that do not match the vial label — what changed since
On the subject in the title: Batch numbers that do not match the vial label — what changed since Working notes rather than a conclusion. What changes if the standard account of Batch numbers is wrong? I ask…
MPAMBRSVC+39 43 14k 1mo
Documenting a payment dispute without naming and shaming — the long version
Posting this under the heading it deserves: Documenting a payment dispute without naming and shaming — the long version Everything below is what sits behind that. A narrow question about Documenting a payment…
MAQZIL 2 32k 1mo
A certificate whose chromatogram axes do not match its stated method — one year on
A certificate whose chromatogram axes do not match its stated method — one year on Writing it up because I had to work it out twice and would rather nobody else did. Posting a small dataset on certificate…
CIDOOVSKKS+103 111 8.1k 2mo
Documenting a payment dispute without naming and shaming
Documenting a payment dispute without naming and shaming — setting out what I have, and where I think it stops being reliable. A payments question, with the mechanics separated from the money. What I would…
ESKOKFCBL+5 9 9.8k 2mo
Counter-ion form: the field almost nobody reports
Counter-ion form: the field almost nobody reports Writing it up because I had to work it out twice and would rather nobody else did. Counter-ion form, from the point of view of someone who has read the…
ANMBERFH 3 11k 2mo
About the COA interpretation category
What a certificate of analysis commits its issuer to, which fields matter, and how to spot one that says almost nothing. This post is a community wiki: any member at trust level 3 or above can edit it, and…
JMHSHVSKLF+8 12 8.5k 2mo
Revisiting: Patterns that reliably precede a problem, documented
Posting this under the heading it deserves: Revisiting: Patterns that reliably precede a problem, documented Everything below is what sits behind that. Patterns, from the point of view of someone who has read…
HNNZMSOO+16 20 36k 2mo
Currency conversion and the cost you did not see
Currency conversion and the cost you did not see — setting out what I have, and where I think it stops being reliable. Currency and fees, set out so that the comparison can be checked. Quoted amount,…
ELSGLE 2 44k 2mo
Reused chromatograms across lots: how to spot it — what changed since
Reused chromatograms across lots: how to spot it — what changed since — setting out what I have, and where I think it stops being reliable. What changes if the standard account of Reused chromatograms across…
GDLSHMLPAA+34 39 20k 2mo
Second pass at: Why chargeback is not the safety net people assume
Second pass at: Why chargeback is not the safety net people assume Writing it up because I had to work it out twice and would rather nobody else did. Asking about the record rather than the transfer. Every…
DBMMHB 2 25k 3mo
Revisiting: A field-by-field walk through a certificate of analysis
Revisiting: A field-by-field walk through a certificate of analysis Writing it up because I had to work it out twice and would rather nobody else did. I would like to disagree carefully with the settled view…
HFRJPNEAPK+37 41 656 3mo
Second pass at: What "verified" means on our vendor pages, stated narrowly
Second pass at: What "verified" means on our vendor pages, stated narrowly — setting out what I have, and where I think it stops being reliable. A question about how a record should be read rather than about…
JHNVMVSSM+94 102 20k 3mo
Why this community will not facilitate a group purchase
Asking directly, because I could not find a straight answer: Why this community will not facilitate a group purchase Currency and fees, set out so that the comparison can be checked. Quoted amount, conversion…
RMMPLS 2 40k 3mo
A payment that went through twice: how it was resolved
A payment that went through twice: how it was resolved Writing it up because I had to work it out twice and would rather nobody else did. A payments question, with the mechanics separated from the money. What…
RJASVBSDSB+20 24 55k 3mo
Coming back to: Which fields on a certificate actually matter, ranked
Which fields on a certificate actually matter, ranked I have a specific reason for asking rather than idle curiosity, and the context is below. A documentation question rather than an analytical one. I have a…
TYBKSS 2 15k 4mo
Which fields on a certificate actually matter, ranked
Which fields on a certificate actually matter, ranked — that is the question, and I have not found it answered plainly anywhere I have looked. I would like to understand what this number means before I repeat…
NACRJNCBMB+25 29 46k 4mo
Reconciling a label claim with a content assay
On the subject in the title: Reconciling a label claim with a content assay Working notes rather than a conclusion. The question about reconciling a label claim that I actually want answered is the second one…
JFILFPESPN+2 6 183 4mo
Second pass at: What to keep a record of at the point of payment
Second pass at: What to keep a record of at the point of payment — setting out what I have, and where I think it stops being reliable. A payments question, with the mechanics separated from the money. What I…
RSCVDSIAOO+14 18 1.9k 4mo
"Greater than or equal to 99%" as a specification rather than a result
"Greater than or equal to 99%" as a specification rather than a result Writing it up because I had to work it out twice and would rather nobody else did. Setting out an integration problem with the actual…
MYJSRPTS+132 146 47k 5mo
Specification in the result column: why that is a meaningful error
Posting this under the heading it deserves: Specification in the result column: why that is a meaningful error Everything below is what sits behind that. A documentation question rather than an analytical…
KARVRMRNSS+107 129 41k 5mo
Can a home kit substitute for a laboratory report? A careful no
Asking directly, because I could not find a straight answer: Can a home kit substitute for a laboratory report? A careful no I would like to disagree carefully with the settled view on home kit substitute,…
WMFKNRVNDO+122 131 1.7k 5mo
Distinguishing a red flag from an inconvenience
Distinguishing a red flag from an inconvenience — setting out what I have, and where I think it stops being reliable. Something about distinguishing a red flag does not reconcile and I would like a second…
ASJMIT 2 38k 6mo
Follow-up: A supplier that answers analytical questions with restated claims
A supplier that answers analytical questions with restated claims — setting out what I have, and where I think it stops being reliable. A follow-up question about supplier that I did not know to ask the first…
CCPYESTCB+74 82 2.8k 6mo
Reading a home test result without over-claiming — what changed since
On the subject in the title: Reading a home test result without over-claiming — what changed since Working notes rather than a conclusion. What changes if the standard account of Reading a home test result is…
KDPMHV 2 12k 6mo
Coming back to: "Greater than or equal to 99%" as a specification rather than a result
Posting this under the heading it deserves: "Greater than or equal to 99%" as a specification rather than a result Everything below is what sits behind that. Two reports on the same lot, and I would like help…
MIJMKO 2 31k 6mo
Coming back to: Payment mechanics and the recovery options that do not exist
On the subject in the title: Payment mechanics and the recovery options that do not exist Working notes rather than a conclusion. A payments question, with the mechanics separated from the money. What I would…
ZSSSLKDEK+7 11 2.6k 7mo
What "verified" means on our vendor pages, stated narrowly
What "verified" means on our vendor pages, stated narrowly — that is the question, and I have not found it answered plainly anywhere I have looked. A question about how a record should be read rather than…
MVFAHSCOVB+27 31 27k 7mo
Documentation that appears only after payment
Documentation that appears only after payment Writing it up because I had to work it out twice and would rather nobody else did. Proposing that documentation deserves a maintained page rather than a recurring…
AZLFELAAJS+113 124 13k 7mo
Batch date after test date, and other internal inconsistencies
Batch date after test date, and other internal inconsistencies — setting out what I have, and where I think it stops being reliable. Proposing that batch date deserves a maintained page rather than a…
VODMTBBTAM+27 31 4.9k 7mo