Tags · Sourcing

batch & lot numbers

The identifier that makes any of this traceable.

51 topics 18 solved Synonyms: lot Group: Sourcing

51 topics · page 1 of 2

Topic	Participants	Replies	Views	Activity
Reused chromatograms across lots: how to spot it Analytics › COA interpretation batch & lot numbers amino acid analysis documentation quality certificate of analysis On the subject in the title: Reused chromatograms across lots: how to spot it Working notes rather than a conclusion. A documentation question rather than an analytical one. I have a certificate in front of…	+53	60	9.5k	4h
How the vendor documentation pages are maintained, and by whom Sourcing › Vendor reports certificate of analysis Janoshik Analytical batch & lot numbers documentation quality Solved How the vendor documentation pages are maintained, and by whom I have a specific reason for asking rather than idle curiosity, and the context is below. I would like to talk about documentation quality as a…		2	6k	4h
Documenting a supplier's response to a discrepancy Sourcing › Vendor reports third-party testing documentation quality batch & lot numbers Solved On the subject in the title: Documenting a supplier's response to a discrepancy Working notes rather than a conclusion. Structured report rather than an opinion, following the format the maintainers asked…	+44	49	589	8h
Coming back to: Why our vendor pages link the storefront and mark it sponsored Sourcing › Vendor reports third-party testing batch & lot numbers certificate of analysis documentation quality Why our vendor pages link the storefront and mark it sponsored I have a specific reason for asking rather than idle curiosity, and the context is below. Structured report rather than an opinion, following the…		2	22k	8h
Coming back to: Reconciling a supplier certificate with an independent result Sourcing › Vendor reports documentation quality certificate of analysis batch & lot numbers Posting this under the heading it deserves: Reconciling a supplier certificate with an independent result Everything below is what sits behind that. Structured report rather than an opinion, following the…	+26	30	45k	16h
Reporting a good result: why nobody bothers and why they should Sourcing › Vendor reports third-party testing Janoshik Analytical certificate of analysis batch & lot numbers Reporting a good result: why nobody bothers and why they should — setting out what I have, and where I think it stops being reliable. Structured report rather than an opinion, following the format the…		2	3.5k	17h
What a certificate commits its issuer to Analytics › COA interpretation reference standards batch & lot numbers amino acid analysis The question in the title: What a certificate commits its issuer to I will give what I have already checked below so nobody repeats it. A documentation question rather than an analytical one. I have a…	+101	116	26k	19h
Comparing documentation quality across the directory, tabulated Sourcing › Vendor reports third-party testing disputed Janoshik Analytical batch & lot numbers Comparing documentation quality across the directory, tabulated — setting out what I have, and where I think it stops being reliable. I would like to talk about documentation quality as a signal, separately…	+7	11	29k	19h
Revisiting: The report format the maintainers ask for, and why each field is there Sourcing › Vendor reports batch & lot numbers Janoshik Analytical documentation quality third-party testing Posting this under the heading it deserves: Revisiting: The report format the maintainers ask for, and why each field is there Everything below is what sits behind that. Structured report rather than an…	+100	108	57k	1d
What a certificate commits its issuer to — one year on Analytics › COA interpretation reference standards certificate of analysis documentation quality batch & lot numbers Wiki What a certificate commits its issuer to — one year on — that is the question, and I have not found it answered plainly anywhere I have looked. A documentation question rather than an analytical one. I have a…	+107	117	6.5k	1d
The report format the maintainers ask for, and why each field is there Sourcing › Vendor reports disputed documentation quality batch & lot numbers certificate of analysis Solved On the subject in the title: The report format the maintainers ask for, and why each field is there Working notes rather than a conclusion. Structured report rather than an opinion, following the format the…		4	6.3k	1d
What a certificate commits its issuer to — the long version Analytics › COA interpretation batch & lot numbers amino acid analysis reference standards certificate of analysis Asking directly, because I could not find a straight answer: What a certificate commits its issuer to — the long version A documentation question rather than an analytical one. I have a certificate in front…	+20	26	21k	2d
[2026 update] A report I filed that turned out to be wrong, and the correction Sourcing › Vendor reports batch & lot numbers third-party testing documentation quality certificate of analysis On the subject in the title: A report I filed that turned out to be wrong, and the correction Working notes rather than a conclusion. Structured report rather than an opinion, following the format the…	+15	19	18k	2d
Follow-up: Reconciling a label claim with a content assay Analytics › COA interpretation reference standards documentation quality batch & lot numbers amino acid analysis Reconciling a label claim with a content assay Writing it up because I had to work it out twice and would rather nobody else did. I would like to understand what this number means before I repeat it anywhere.…	+26	30	6.5k	14d
Purity assay versus content assay: two different numbers Analytics › COA interpretation documentation quality batch & lot numbers reference standards certificate of analysis On the subject in the title: Purity assay versus content assay: two different numbers Working notes rather than a conclusion. I would like to understand what this number means before I repeat it anywhere. A…	+6	10	24k	25d
A checklist for reading a certificate in under two minutes Analytics › COA interpretation certificate of analysis batch & lot numbers amino acid analysis Solved A checklist for reading a certificate in under two minutes — setting out what I have, and where I think it stops being reliable. I would like to understand what this number means before I repeat it anywhere.…	+39	46	38k	1mo
Counter-ion form: the field almost nobody reports Analytics › COA interpretation certificate of analysis documentation quality batch & lot numbers Solved 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. A documentation question rather than an analytical one. I have a…		3	11k	2mo
About the COA interpretation category Analytics › COA interpretation certificate of analysis documentation quality batch & lot numbers Pinned Wiki 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…	+8	12	8.5k	2mo
Reused chromatograms across lots: how to spot it — what changed since Analytics › COA interpretation batch & lot numbers amino acid analysis reference standards documentation quality Solved Reused chromatograms across lots: how to spot it — what changed since — setting out what I have, and where I think it stops being reliable. A documentation question rather than an analytical one. I have a…	+34	39	20k	2mo
Second pass at: What "verified" means on our vendor pages, stated narrowly Sourcing › Vendor reports Janoshik Analytical documentation quality third-party testing batch & lot numbers Solved 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 logistics question, since the answers here are usually better…	+94	102	20k	3mo
Coming back to: Which fields on a certificate actually matter, ranked Analytics › COA interpretation reference standards documentation quality batch & lot numbers amino acid analysis Solved Which fields on a certificate actually matter, ranked I have a specific reason for asking rather than idle curiosity, and the context is below. Posting the method first, because I know what the first three…		2	15k	4mo
Which fields on a certificate actually matter, ranked Analytics › COA interpretation reference standards certificate of analysis documentation quality batch & lot numbers Closed Which fields on a certificate actually matter, ranked — that is the question, and I have not found it answered plainly anywhere I have looked. Posting the method first, because I know what the first three…	+25	29	46k	4mo
Reconciling a label claim with a content assay Analytics › COA interpretation documentation quality amino acid analysis reference standards certificate of analysis Closed On the subject in the title: Reconciling a label claim with a content assay Working notes rather than a conclusion. I would like to understand what this number means before I repeat it anywhere. A…	+2	6	183	4mo
"Greater than or equal to 99%" as a specification rather than a result Analytics › COA interpretation reference standards documentation quality batch & lot numbers amino acid analysis Solved "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. Working through the identity arithmetic and I would…	+132	146	47k	5mo
Specification in the result column: why that is a meaningful error Analytics › COA interpretation reference standards amino acid analysis certificate of analysis batch & lot numbers Under review Closed 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. Working through the identity arithmetic and I would…	+107	129	41k	5mo
Coming back to: "Greater than or equal to 99%" as a specification rather than a result Analytics › COA interpretation documentation quality amino acid analysis certificate of analysis batch & lot numbers 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. Working through the identity arithmetic and I…		2	31k	6mo
What "verified" means on our vendor pages, stated narrowly Sourcing › Vendor reports batch & lot numbers disputed documentation quality third-party testing 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. I would like to talk about documentation quality as a…	+27	31	27k	7mo
Batch date after test date, and other internal inconsistencies Analytics › COA interpretation certificate of analysis reference standards batch & lot numbers documentation quality Batch date after test date, and other internal inconsistencies — setting out what I have, and where I think it stops being reliable. I would like to understand what this number means before I repeat it…	+27	31	4.9k	7mo
Water content on a certificate and why it changes the arithmetic — what changed since Analytics › COA interpretation documentation quality batch & lot numbers reference standards certificate of analysis On the subject in the title: Water content on a certificate and why it changes the arithmetic — what changed since Working notes rather than a conclusion. A documentation question rather than an analytical…		3	801	8mo
How the vendor documentation pages are maintained, and by whom — what changed since Sourcing › Vendor reports third-party testing disputed batch & lot numbers Solved Asking directly, because I could not find a straight answer: How the vendor documentation pages are maintained, and by whom — what changed since A logistics question, since the answers here are usually better…	+98	104	3k	8mo

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