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Cluster: Safety, Chemical & Flame Barrier QuestionsID: QST-SAF-023

CPSC 16 CFR Part 1633 Open Flame Test Explained | Nappedia

Target Query:“cpsc 16 cfr 1633 flammability open flame test requirements”
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Subject: CPSC Standard 16 CFR Part 1633
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Specimen: law-label-saatva-classic
Direct Forensic Answer

Query: “cpsc 16 cfr 1633 flammability open flame test requirements”

Federal Flammability Law

Direct Answer Summary

CPSC 16 CFR Part 1633 is the mandatory federal open-flame flammability standard for mattress sets, enacted in 2007. It subjects a mattress set to two large propane T-burners: a top burner (18 kW for 70 seconds) and a side burner (9 kW for 50 seconds). To pass, the mattress set must not exceed a peak heat release rate of 200 kW during the 30-minute test, nor release more than 15 MJ of total heat in the first 10 minutes.

Audited Core Takeaways

  • 1Mandates peak heat release rate (HRR) must not exceed 200 kW across 30 minutes.
  • 2Total heat release in the first 10 minutes must not exceed 15 MJ to prevent flashover.
  • 3Requires every production mattress to reference a tested, compliant prototype ID on its law tag.
Regulatory Law Label Specimen
Interactive Laboratory View

Forensic Law Label & Material Audit

Inspect the physical law label tag specimen, decode the state Uniform Registry Number (URN), and review certified material percentages under CPSC 16 CFR Part 1633.

Forensic Specimen Archive • Metrology & Legal Audit

Uniform Law Label & Material Deconstruction

Under FTC 16 CFR Part 303 and IABFLO uniform law label standards, bedding manufacturers must disclose exact net filling weights using standardized generic fiber terms. Marketing buzzwords are prohibited under federal penalty.

▲ Sewn Into Seam (Tyvek Substrate) ▲

UNDER PENALTY OF LAW THIS TAG NOT TO BE REMOVED EXCEPT BY THE CONSUMER

ALL NEW MATERIAL CONSISTING OF

POLYURETHANE FOAM PAD55%
RESIN-TREATED COTTON BATTING25%
RAYON FIBER / WOOL CHAR BARRIER20%
Net Filling Weight (Excluding Steel Springs)
Uniform Registry Number (Click to decode)
REG. NO. UT-12345 (FL)

Certification is made by the manufacturer that the materials in this article are described in accordance with law.

Manufacture Date:04/2026
Plant Facility:Tampa, FL
Legal Entity:Saatva Inc. / Bedding Industries of America (BIA)
16 CFR Part 1633 Prototype: STV-115-HYB-2026Inspect →
Physical Tag Dimensions: 2.75" × 3.75" (Meets IABFLO 2.5" × 3.0" min)
Active Specimen URN Breakdown
REG. NO. UT-12345 (FL)
Issuing State
UT (Utah)
Registry Sequence
#12345
Plant Location
FL (Florida)
IABFLO 31-State Reciprocity: The issuing state (UT) participates in the Uniform Law Label system. This single registration permits lawful commercial distribution across all 31 regulated US bedding jurisdictions without duplicate state tags.
Audited Metrics4 Verified Metrics

CPSC Standard 16 CFR Part 1633 Forensic Specifications

Physical construction measurements and laboratory ratings evaluated against regulatory, medical, and durability benchmarks.

Specification / MetricMeasured ValueBenchmark / StandardStatus
Peak Heat Release Rate (HRR)< 200 kW Maximum LimitMandatory Pass CeilingPass
10-Minute Total Heat Release< 15 MJ Maximum LimitPrevents Room FlashoverPass
Top Burner Thermal Exposure18 kW Propane for 70 SecondsSevere Flame ExposurePass
Side Burner Thermal Exposure9 kW Propane for 50 SecondsPerimeter Flammability TestPass

Standards Reference: Benchmarks derived from ASTM D3574 (flexible cellular foam), CPSC 16 CFR 1633 (open flame flammability), and clinical capillary closing thresholds (32.0 mmHg).

Safety Inspection Protocol3 Actionable Steps

Consumer Safety & Chemical Verification Protocol

Step-by-step physical inspection procedure for flame barrier integrity and law label compliance.

Check Prototype ID on Law Tag

Step 1

Confirm a valid flammability prototype identifier is printed on the statutory label.

Critical Hazard to Avoid

Never purchase a mattress lacking a verifiable 16 CFR Part 1633 prototype code.

Verify Foundation Pairing

Step 2

Ensure the foundation used matches the tested prototype configuration.

Critical Hazard to Avoid

Pairing a mattress with an unapproved box spring can violate flammability safety.

Inspect Charring Barrier

Step 3

Confirm the fire barrier covers all 6 sides including corners and tape seams.

Critical Hazard to Avoid

Do not puncture ticking with needles, safety pins, or upholstery tacks.

Authoritative Grounding

Primary Source Regulatory & Engineering Citations

2 Verified Sources

Every factual threshold, dimension, safety standard, and warranty policy cited on this page is derived directly from verified government filings, regulatory standards organizations, or official manufacturer technical documentation.

U.S. Consumer Product Safety Commission (CPSC)16 CFR Part 1633

Standard for the Flammability (Open Flame) of Mattress Sets

www.cpsc.gov/Regulations-Laws--Standards/Rulemaking/Final-Rules/Mattress-SetsView Source
National Institute of Standards and Technology (NIST)NIST Technical Note 1446

Mattress Flammability Test Protocol Documentation

www.nist.gov/el/fire-research-division-73300View Source
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