325413 — In-Vitro Diagnostic Substance Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing in-vitro (i.e., not taken internally) diagnostic substances, such as chemical, biological, or radioactive substances. The substances are used for diagnostic tests that are performed in test tubes, petri dishes, machines, and other diagnostic test-type devices.
Exclusions & Cross-References
- Establishments primarily engaged in manufacturing in-vivo diagnostic substances are classified in U.S. Industry
- 325412, Pharmaceutical Preparation Manufacturing.
Overview Facts
| NAICS Code | 325413 |
|---|---|
| Industry Title | In-Vitro Diagnostic Substance Manufacturing |
| SBA Size Standard | 1,250 employees |
| IRS PBA Code | 325410 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 325 → 3254 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 2835 - In Vitro and In Vivo Diagnostic Substances (via SIC1987:2835→NAICS1997:325413→2002:325413→2007:325413→2012:325413→2017:325413→2022:325413)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 325413:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 3254
Frequently Asked Questions (FAQ)
Is 325413 a valid 2022 NAICS code?
NAICS 325413 is 'In-Vitro Diagnostic Substance Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 1,250 employees.
What is the SBA size standard for NAICS 325413?
The SBA small business size standard for NAICS 325413 is 1,250 employees (based on employees).
What is the legacy SIC code mapping for 325413?
NAICS code 325413 maps to the legacy 1987 SIC codes: 2835 - In Vitro and In Vivo Diagnostic Substances.