Multichem ID-B. Model Number: SR103B recallZ-0502-2026 · Techno-Path Manufacturing Ltd. · initiated Oct 17, 2025
Open, Classified
Is my device affected?
- Compare the model, catalog and lot or serial numbers on your device or its packaging with the code information below. A recall usually covers only specific models or lots.
- If yours is listed, follow the instructions from Techno-Path Manufacturing Ltd. or your healthcare provider. The company's action is summarized under what the company is doing.
- Do not stop using a prescribed or implanted device on your own — talk to your healthcare provider first.
Where to find your model and lot numbers · What recall classes and statuses mean
Why it was recalled
Potential of negative recovery of the HBsAg analyte across two (2) lots of Multichem ID-B Positive Control when tested on the Alinity i platform.
FDA root cause category: Process control
What the company is doing
LGC Clinical Diagnostics notified consignees on about 10/17/2025 via letter that Techno-path Manufacturing Ltd was recalling specific Multichem ID-B products. Consignee were informed that the Instructions for Use (IFU) for Multichem ID-B SR103B, Lots SB140524P and SB161024P have been updated to remove the representative reactivity for the analyte HBsAg; therefore, no representative reactivity result will be provided for HBsAg in these lots. Consignees were instructed to discard all previous versions of the IFU for affected lots, share the information with all applicable laboratory staff or customers if further distributed, retain the notification as part of the laboratory Quality System documentation, and complete and return the provided response form. Techno-path Manufacturing Ltd. is investigating this issue and will implement a correction for all future lots of Multichem ID-B Positive Control SR103B that will be released.
Recall details
- Recall number
- Z-0502-2026
- Status
- Open, Classified
- Initiated by the company
- Oct 17, 2025
- Posted by the FDA
- Nov 14, 2025
- Recalling firm
- Techno-Path Manufacturing Ltd.
- Quantity
- 51 units
- Product code
- OHQ
- Distribution
- US distribution to CA, CO, CT, FL, HI, IL, LA, MI, MN, NV, NY, OR, SC, TN, TX, WI, WY.
Product description
Multichem ID-B. Model Number: SR103B. Intended for use as an unassayed positive qualitative quality control serum to monitor the precision of laboratory testing procedures for the determination of anti-HIV-1 IgG, anti-HBc IgG, anti-HTLV-I IgG, anti-HCV IgG, HBs antigen and anti-Treponema pallidum IgG.
Code information (models, lots, serial numbers)
Model Number: SR103B. UDI: (01)05391523442312(240)SR103B(17)261031(10) SB161024P. Lot Number: SB161024P. Expiration Date: 31-10-2026.
Devices named in this recall
1 device in the FDA device registry whose identifier appears in the recall's code information.
- Multichem ID-B SR103BTechno-Path Manufacturing Limited · Multi-Analyte Controls Unassayed2 recalls0 reports
Other products in the same recall event
The FDA groups related products into one recall event (event 97800).
- Z-0501-2026 · Open, ClassifiedMultichem ID-B. Model/Catalog Number: SR103B Intended for use as an unassayed positive qualitative quality control serum to monitor the precision of laboratory testing procedures …
Sources and updates
- Recall record: FDA Medical Device Recalls, file dated Oct 16, 2026 · View the FDA recall notice ↗
- Devices: FDA GUDID, file dated Oct 13, 2026. Devices are linked when their identifier (with a valid check digit) appears in the recall's code information.
- Page last rebuilt: Oct 16, 2026. Text above is shown as published by the FDA.
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