510(k) · Cleared

Recalled · 2008

Architect LH Mastercheck, Model Number 6C25-05

K984323510(k) TraditionalCleared Dec 15, 199812-day reviewClass I21 CFR 862.1660Recalls 1

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Bio-Rad · JJX Single (Specified) Analyte Controls (Assayed And Unassayed)

Cleared on Dec 15, 1998 as substantially equivalent to K950469 (Casco Standards, 1995) after a 12-day review. Its family tree reaches back 1 generation to 1995. It has been recalled once.

Decided: Dec 15, 1998
Review: 12 days
Class: Class I
Product code: JJX
Recalls: 1
Predicates: 1

Its longest line of descent runs back 1 generation to K950469 (1995). No later device cites it as a predicate yet.

By dateBy generation

Root · 1 generation backK950469 Document Serum Multianalyte Calibration Verification Test SetCasco Standards · 1995
This deviceK984323 Architect LH Mastercheck, Model Number 6C25-05Bio-Rad · 1998

View FIG. 1 as a table

Line of descent and top descendants

Generation	Number	Device	Applicant	Decided	Recalls
−1	K950469	Document Serum Multianalyte Calibration Verification Test Set	Casco Standards	1995	—
0 (this device)	K984323	Architect LH Mastercheck, Model Number 6C25-05	Bio-Rad	1998	—

FIG. 1 — Lineage of K984323, 1995–1998Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in JJX? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Candidate predicates for a device like this, rankedin the report
Recall history across each candidate’s familyin the report

Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

Type	Number	Device	Applicant	Decided	Recalls
*	K950469	Document Serum Multianalyte Calibration Verification Test Set Our OCR of the scanned summary read K850469, which is not a number in FDA’s lists. Corrected to the number one digit away whose FDA name carries the summary’s words for the device, “Casco Standards Document Serum Multi-Analyte Verification Test Set”.	Casco Standards	1995	—

Also cleared against K950469: 17 other devices →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

Recalls of this device

Date	Class	Recall	Root cause	Reason
Sep 5, 2008	Not classified	Z-0216-2009	Error in labeling	The values listed in the Architect LH MasterCheck, Lot 82520 data sheet are incorrect. When MasterChecks do not perform as intended, the integrity of the system cannot be verified and patient results would not be generated. Other…

No ancestor or descendant has a Class I recall.

What does this lineage say?

Its one ancestor has no recall.
17 other devices also cite its predicate K950469.

How does its category compare?

All JJX devices

JJX Single (Specified) Analyte Controls (Assayed And Unassayed): FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JJX

2in 2017

2007high 24 (2010) · low 0 (2018)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JJX

31in 2016

2007high 80 (2009) · low 30 (2014)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · JJX

1in 2021

2007high 3 (2007) · low 0 (2009)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · JJX

22in 2025

2007high 82 (2019) · low 0 (2008)2025

MAUDE reports naming product code JJX, not matched to any one device; reports are not rates.

View these four charts as a table

Year	Decisions	Median 510(k) review, days	Recalls (Class I)	MAUDE reports
2007	6	53	3	2
2008	8	52	3	0
2009	17	80	0	1
2010	24	80	3	6
2011	19	62	2	62
2012	15	40	0	32
2013	19	37	0	51
2014	22	30	1	48
2015	11	65	1	67
2016	6	31	2	37
2017	2	—	0	19
2018	0	—	2	35
2019	0	—	0	82
2020	0	—	0	77
2021	0	—	1	43
2022	0	—	0	24
2023	0	—	0	22
2024	0	—	0	30
2025	0	—	0	22
2026	0	—	0	—

What is it indicated for?

Architect LH MasterCheck is intended for use in the verification of sensitivity, calibration linearity, and reportable range of the LH assay on the Abbott Architect / System.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

https://510kreport.com/device/K984323 · printed Nov 6, 2026

Cite this page

510(k) Report. “K984323: Architect LH Mastercheck, Model Number 6C25-05.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K984323

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Record history

FDA decision record loaded May 2, 2026
Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
Lineage and recalls computed Nov 3, 2026
Page last updated Nov 3, 2026