Tags · Sourcing

third-party testing

Testing commissioned by someone other than the seller.

62 topics 19 solved Group: Sourcing

62 topics · page 2 of 3

Topic	Participants	Replies	Views	Activity
Can a home kit substitute for a laboratory report? A careful no Analytics › Home & field testing third-party testing documentation quality LOD & LOQ ELISA Solved 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 understand what this number means before I repeat it anywhere. A…	+122	131	1.7k	5mo
Reading a home test result without over-claiming — what changed since Analytics › Home & field testing third-party testing documentation quality LOD & LOQ ELISA Pinned Closed On the subject in the title: Reading a home test result without over-claiming — what changed since Working notes rather than a conclusion. Working through the identity arithmetic and I would like it checked.…		2	12k	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
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
What a purity-only report leaves out Sourcing › Independent verification Medutest VendorInvestigate third-party testing PeptideMeter Solved What a purity-only report leaves out — that is the question, and I have not found it answered plainly anywhere I have looked. Structured report rather than an opinion, following the format the maintainers…	+92	105	4k	8mo
A comparison of home results against a laboratory result on the same vial Analytics › Home & field testing documentation quality ELISA third-party testing Posting this under the heading it deserves: A comparison of home results against a laboratory result on the same vial Everything below is what sits behind that. Working through the identity arithmetic and I…	+61	65	35k	8mo
Coming back to: Why quantitation is the hard part, not detection Analytics › Home & field testing third-party testing documentation quality ELISA LOD & LOQ Why quantitation is the hard part, not detection — 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 replies…	+86	92	54k	8mo
Reconciling a supplier certificate with an independent result Sourcing › Vendor reports third-party testing Janoshik Analytical certificate of analysis Reconciling a supplier certificate with an independent result — setting out what I have, and where I think it stops being reliable. Structured report rather than an opinion, following the format the…	+18	24	347	9mo
Reflectance and photometric devices: precision in practice Analytics › Home & field testing third-party testing documentation quality LOD & LOQ Solved On the subject in the title: Reflectance and photometric devices: precision in practice Working notes rather than a conclusion. I would like to understand what this number means before I repeat it anywhere. A…		2	2.2k	10mo
About the Home & field testing category Analytics › Home & field testing ELISA third-party testing LOD & LOQ Pinned Wiki What consumer-accessible tests can and cannot tell you. Mostly a subcategory about limitations. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with…		4	51k	11mo
Publishing an inconvenient result: a case study Sourcing › Independent verification Medutest VendorInvestigate third-party testing Janoshik Analytical Wiki On the subject in the title: Publishing an inconvenient result: a case study Working notes rather than a conclusion. Structured report rather than an opinion, following the format the maintainers asked for.…	+59	70	992	11mo
What a documentation review can and cannot tell you Sourcing › Independent verification Medutest VendorInvestigate Janoshik Analytical blind sampling Solved Wiki What a documentation review can and cannot tell you — 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 signal,…	+79	83	950	11mo
Revisiting: Filing a first vendor report: a worked example Sourcing › Vendor reports batch & lot numbers documentation quality third-party testing disputed On the subject in the title: Revisiting: Filing a first vendor report: a worked example Working notes rather than a conclusion. Structured report rather than an opinion, following the format the maintainers…		2	60k	11mo
Why quantitation is the hard part, not detection Analytics › Home & field testing LOD & LOQ third-party testing ELISA Why quantitation is the hard part, not detection 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 replies…	+11	15	27k	12mo
A report I filed that turned out to be wrong, and the correction Sourcing › Vendor reports certificate of analysis disputed third-party testing A report I filed that turned out to be wrong, and the correction Writing it up because I had to work it out twice and would rather nobody else did. Structured report rather than an opinion, following the…	+124	132	12k	13mo
Splitting a vial for two laboratories: how to do it without ruining both Sourcing › Independent verification blind sampling PeptideMeter third-party testing Medutest Solved Splitting a vial for two laboratories: how to do it without ruining both — setting out what I have, and where I think it stops being reliable. A logistics question, since the answers here are usually better…	+64	70	4.4k	13mo
The report format the maintainers ask for, and why each field is there — what changed since Sourcing › Vendor reports third-party testing disputed Janoshik Analytical The report format the maintainers ask for, and why each field is there — what changed since Writing it up because I had to work it out twice and would rather nobody else did. Structured report rather than an…	+29	35	6.6k	13mo
One lot is one lot: when a report becomes a pattern Sourcing › Vendor reports documentation quality certificate of analysis batch & lot numbers disputed Solved Posting this under the heading it deserves: One lot is one lot: when a report becomes a pattern Everything below is what sits behind that. Structured report rather than an opinion, following the format the…		2	19k	14mo
How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ Sourcing › Independent verification blind sampling PeptideMeter Medutest third-party testing How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ I have a specific reason for asking rather than idle curiosity, and the context is below. Structured report rather than an opinion, following…	+117	130	3.3k	14mo
Filing a first vendor report: a worked example Sourcing › Vendor reports third-party testing batch & lot numbers Janoshik Analytical documentation quality Filing a first vendor report: a worked example Writing it up because I had to work it out twice and would rather nobody else did. A logistics question, since the answers here are usually better than anywhere…	+1	5	12k	15mo
What a simple presence test is genuinely useful for — does this still hold? Analytics › Home & field testing ELISA LOD & LOQ third-party testing documentation quality Solved Pinned What a simple presence test is genuinely useful for — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. I would like to understand what this…		2	22k	16mo
Documenting a supplier's response to a discrepancy — does this still hold? Sourcing › Vendor reports certificate of analysis third-party testing batch & lot numbers Documenting a supplier's response to a discrepancy — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. Structured report rather than an opinion,…	+47	52	58k	16mo
One lot is one lot: when a report becomes a pattern — the long version Sourcing › Vendor reports third-party testing Janoshik Analytical certificate of analysis batch & lot numbers Closed One lot is one lot: when a report becomes a pattern — the long version — setting out what I have, and where I think it stops being reliable. Structured report rather than an opinion, following the format the…	+137	152	46k	16mo
Revisiting: Aggregate verification data across the directory, with caveats Sourcing › Independent verification PeptideMeter third-party testing blind sampling Medutest Closed Revisiting: Aggregate verification data across the directory, with caveats — setting out what I have, and where I think it stops being reliable. I would like to talk about documentation quality as a signal,…	+22	26	23k	17mo
Reporting a good result: why nobody bothers and why they should — one year on Sourcing › Vendor reports batch & lot numbers certificate of analysis documentation quality disputed Wiki Posting this under the heading it deserves: Reporting a good result: why nobody bothers and why they should — one year on Everything below is what sits behind that. Structured report rather than an opinion,…	+19	27	4.7k	18mo
About the Vendor reports category Sourcing › Vendor reports certificate of analysis batch & lot numbers third-party testing Pinned Wiki Structured reports on named suppliers. Batch, date, method and document, or it stays in the unverified column. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit…		4	65k	18mo
Turnaround times and what they mean for a decision — one year on Sourcing › Independent verification Medutest PeptideMeter VendorInvestigate third-party testing On the subject in the title: Turnaround times and what they mean for a decision — one year on Working notes rather than a conclusion. Structured report rather than an opinion, following the format the…	+25	29	22k	18mo
Follow-up: Reporting a discrepancy without making an allegation Sourcing › Vendor reports certificate of analysis disputed third-party testing Janoshik Analytical Reporting a discrepancy without making an allegation Writing it up because I had to work it out twice and would rather nobody else did. Structured report rather than an opinion, following the format the…		2	24k	19mo
Choosing which test to pay for, given a fixed budget — does this still hold? Sourcing › Independent verification PeptideMeter blind sampling Janoshik Analytical VendorInvestigate Choosing which test to pay for, given a fixed budget — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. I would like to talk about documentation…	+35	39	755	20mo
Splitting a vial for two laboratories: how to do it without ruining both — what changed since Sourcing › Independent verification VendorInvestigate third-party testing Medutest blind sampling Closed Posting this under the heading it deserves: Splitting a vial for two laboratories: how to do it without ruining both — what changed since Everything below is what sits behind that. A logistics question, since…	+107	115	5.2k	22mo