Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
CAN CSA F382-M89 (2014) – Upholstered Furniture Flammability: A Complete Technical Guide
Scope, technical requirements, implementation, and compliance for furniture fire safety under CAN CSA F382-M89 (R2014)
Scope and Applicability
CAN CSA F382-M89 (2014) specifies test methods and performance criteria for the flammability of upholstered furniture intended for residential and commercial use in Canada. Originally published in 1989 and reaffirmed in 2014, this standard applies to all upholstered seating and bedding products that contain combustible fillings and coverings. The standard addresses both resistance to cigarette ignition (smoldering sources) and resistance to open flame ignition (e.g., matches, lighters), covering the full composite assembly — including covering fabrics, interliners, barrier materials, and fillings such as polyurethane foam, polyester fiber, or latex foam.
Key aspects of the scope include:
- Evaluation of complete furniture assemblies rather than individual components.
- Two distinct ignition scenarios: smoldering (cigarette) and open flame (flaming source).
- Applicability to both new production furniture and prototypes.
- Exemption for furniture that meets specific exemption criteria (e.g., metal or wood furniture without upholstery).
Note: CAN CSA F382-M89 (2014) is harmonized with the U.S. CPSC requirements under 16 CFR Part 1633 and 16 CFR Part 1634 for open frame and smoldering ignition, but incorporates additional Canadian testing climate and labeling requirements.
Technical Requirements
Material Classification and Test Conditions
Materials used in upholstered furniture are classified according to their expected contribution to fire growth. The standard requires that both the covering fabric and filling be tested together as an assembly. Three main material categories are defined:
| Category | Material Type | Requirement |
|---|---|---|
| Class A | Covering fabric (smoldering resistance) | No ignition after exposure to a cigarette test (CSA F382 Annex A) |
| Class B | Filling (smoldering and flame resistance) | Char length ≤ 50 mm, no combustion beyond seam (Annex B) |
| Class C | Barrier interlayers | Must prevent penetration of ignition source within 30 minutes (Annex C) |
All tests are conducted after conditioning at 20–25 °C and 50 ± 5% relative humidity for at least 24 hours. The standard also specifies the number of replicates (minimum 3 per assembly) and the rejection criteria (if any replicate fails the entire assembly fails).
Smoldering Ignition Test (Cigarette Source)
This test evaluates the resistance of a furniture assembly to smoldering ignition from a lit cigarette placed at the crevice between the seat and back cushion. The cigarette must rest on the covering fabric with its glow exposed to both surfaces. Observations of flaming or deep charring are recorded over a 120-minute period. The assembly passes if no flaming ignition occurs and no more than superficial charring extends beyond the immediate contact area.
Open Flame Ignition Test (Flaming Source)
This test uses a small propane burner (T-burner) to apply a controlled flame to the side and top of the mock-up assembly for 70 seconds. The test is based on UFAC and CPSC protocols adapted by CSA. Performance criteria include:
- Peak heat release rate ≤ 80 kW within 10 minutes of ignition.
- Total heat release < 25 MJ in the first 10 minutes.
- No flashover (flame spread beyond the seat) within the 30-minute test duration.
Warning: Failure to meet the open flame criteria is the leading cause of furniture-related fires in Canadian dwellings. Designers should prioritize the use of fire-resistant barrier layers and combustion-modified foams.
Implementation in Product Design
To achieve compliance with CAN CSA F382-M89 (2014), manufacturers should integrate flammability considerations at the design stage. The following design strategies have proven effective:
- Barrier layers: Incorporate flexible barriers (e.g., fiberglass, aramid, or inherently fire-resistant nonwovens) between covering fabric and filling.
- Filling selection: Use CMHR (Combustion Modified High Resiliency) foam or polyester batting with flame retardant additives satisfying Annex B.
- Interliner: For plush fabrics, a cotton interliner treated with boric acid can improve smoldering resistance.
- Joints and seams: Ensure that ignition sources cannot reach the filler through unguarded seams; all edges must be covered by barrier material.
Tip: Conduct a preliminary screening of fabric/foam combinations using the small-scale test described in Annex D (equivalent to ASTM D2859) to reduce the number of full-scale mock-ups needed.
Documentation should include a statement of compliance per CAN CSA F382-M89 (2014) on the product label or packaging, along with a production lot number and test report reference.
Compliance and Certification Notes
Compliance with CAN CSA F382-M89 (2014) is mandatory under Canadian provincial fire codes in several provinces (e.g., Ontario, British Columbia, Alberta) for residential upholstered furniture. Manufacturers must:
- Submit initial type test reports from a laboratory accredited by SCC (Standards Council of Canada) to perform the tests per CAN CSA F382.
- Maintain a quality assurance program that verifies continued compliance through lot testing (minimum every six months or following any material change).
- Affix a permanent label that includes the standard reference, test date, and manufacturer identification.
Failure to comply can result in prohibition of sale and recall orders. Retailers selling furniture without the CSA F382 compliance mark may face liability under product safety legislation.
Important: CAN CSA F382-M89 (2014) was reaffirmed in 2014 and remains the current edition. Always verify the latest amendment at csagroup.org to ensure your certification is up-to-date.
Frequently Asked Questions
Q: Does CAN CSA F382-M89 (2014) apply to imported furniture?
A: Yes. Any upholstered furniture sold in Canada, regardless of origin, must meet the requirements of CAN CSA F382. Importers are responsible for securing a test report from an accredited lab and labeling products accordingly. This standard is referenced in the Canada Consumer Product Safety Act.
A: Yes. Any upholstered furniture sold in Canada, regardless of origin, must meet the requirements of CAN CSA F382. Importers are responsible for securing a test report from an accredited lab and labeling products accordingly. This standard is referenced in the Canada Consumer Product Safety Act.
Q: What is the difference between the cigarette test and the open flame test in this standard?
A: The cigarette test (Annex A) evaluates resistance to smoldering ignition from a smoldering cigarette placed on the fabric surface. The open flame test (Annex B) uses a propane burner to simulate a small flame source (e.g., match or lighter) applied for 70 seconds. Both tests are required for full compliance, as they address different fire scenarios.
A: The cigarette test (Annex A) evaluates resistance to smoldering ignition from a smoldering cigarette placed on the fabric surface. The open flame test (Annex B) uses a propane burner to simulate a small flame source (e.g., match or lighter) applied for 70 seconds. Both tests are required for full compliance, as they address different fire scenarios.
Q: Can I use test results from CPSC 16 CFR Part 1633 to comply with CAN CSA F382?
A: Partially. While the test methods are similar, CSA requires additional conditioning parameters (24 hours at 50% RH) and a longer observation period for the smoldering test. A direct equivalence study is recommended. In most cases, separate testing per CAN CSA F382-M89 (2014) is required for Canadian certification.
A: Partially. While the test methods are similar, CSA requires additional conditioning parameters (24 hours at 50% RH) and a longer observation period for the smoldering test. A direct equivalence study is recommended. In most cases, separate testing per CAN CSA F382-M89 (2014) is required for Canadian certification.
Q: Is there a list of certified materials available?
A: CSA Group does not publish a central database of certified materials. Manufacturers should request a Supplier’s Declaration of Compliance (SDOC) from their material suppliers and maintain their own records of assembly test results to demonstrate ongoing compliance.
A: CSA Group does not publish a central database of certified materials. Manufacturers should request a Supplier’s Declaration of Compliance (SDOC) from their material suppliers and maintain their own records of assembly test results to demonstrate ongoing compliance.