New ANSI/BIFMA X5.1 Draft Canvas

BIFMA has been updating its BIFMA X5.1 standard and recently released its ANSI Canvass Association Ballot.  Members are to review, vote and if appropriate; comment on this new standard.  This is the last stretch before the standard gets formally adopted.  Of course; things can go haywire at the last minute.  Micom will vote YES to this BIFMA Canvass Ballot.  Please find in the table below a test-by-test comparison between the current standard and the proposed revision as well as statement informing you of whether or not re-testing will likely be required.  Per our previous post on the topic; http://www.micomlab.com/2015/06/bifma-x5-1-2015-draft-association-ballot-review/, the most important change this standard brings is that it is now based on a 274 lbs individual instead of 253 lbs.  This increased load basis obviously leads to higher loads and forces in many of the tests.  However and surprisingly; not all of them.

BIFMA has been very busy the last few years; on the seating front they published BIFMA X5.11 for large occupant (254-400 lbs) in 2015 and they have a draft standard in the mill for healthcare furniture; BIFMA HCF 8.2.  Both standards share some tests from BIFMA X5.1 and BIFMA X5.4 and incorporate new tests as well.  There is still no BIFMA bariatric standard.  However, I would like to point out that HCF 8.2 goes up to 600lbs which is getting pretty close to the bariatric realm.

On the bariatric front, since there is no official standard, we had been requested many years to develop our own version by some customers.  At the time there was only X5.1 and X5.4 both based on a 225 lbs individual (years ago already).  Today with X 5.1, X5.4, X5.11 and now HCF 8.2 you can almost plot, for each test, a graph of the performance levels required as a function of the standard’s target load and generate your own “bariatric” standard.  We did the exercise recently and we will share our reflections on the topic on a future post this fall.

For more information about this test or other services we offer, please don’t hesitate to contact us.

 

NEW ANSI/BIFMA X5.1 STANDARD

COMPARISON BETWEEN  CURRENT VERSION AND PROPOSED DRAFT CANVAS (JUNE 6, 2016)

ANSI/BIFMA X5.1 ANSI Canvas

Comparison

Conclusion

1. Scope

Tests developed for
a 274 lb. individual whereas it used to be 253 lb.

5. Back strength
test (Type I & II)

Test now applies to
type 1 & 2 chairs.
Pull angle is now set at  70° whereas
it was 90°
Pull forces are now 150/225 lbf. whereas they used to be 200/300 lbf

Different test protocol
Retesting required

6. Back strength
test (Type III)

Test now applies to
type 3 chairs only.
Pulling forces are now 150/225 lbf. whereas they used to be 150/250 lbf

No retesting required
Test is easier to pass

7. Drop test   

Was test #8 in
previous version.
More specific requirements for Functional load: clearance shall be provided
between test platform and  center
column to prevent interference resulting from impact.
More specific wording for pedestal bases setup

Different test protocol
Retesting required

8. Swivel cycling
test   

Was test #9 in
previous version.
Same test protocol, load on the seat changed from 113 kg to 122 kg (250 to
270 lbs)

Additional load on chair during cycling:

Retesting required

9. Tilt mechanism
test completed with #15

Was test #10 in
previous version.
Same test protocol, load changes  from
102 kg to 109 kg (225 to 240 lbs)

Additional load on chair during cycling:

Retesting required

10.2. Seating impact
test

Was test #11.2 in
previous version.
The drop height was increased from 30 mm to 36 mm (1.2″ to 1.4″)
which yields a higher impact force on the seat. 
More specific wording for pedestal bases, casters and tilt setup
The center column shall not touch the test platform under impact.

Test more difficult to comply to
Retesting required

10.4. Front Corner
Load-Ease Test – Cyclic

Was test #11.4 in
previous version.
Same test protocol, loading device
changes  from 734 N to 890 N
(165 to 200 lbf)

Test more difficult to comply to
Retesting required

11.3. Rear Stability
test

Was test #12.3 in
previous version.
More specific setup for chair setup and test procedure.
Template required for first disk positioning

Different test protocol
Retesting required

11.4. Front
Stability

Was test #12.4 in
previous version.
Minor changes, more specific wording in test setup and procedure

Test is easier to comply to
No retesting required

12. Arm strength
test – Vertical  

Was test #13 in
previous version.
Same loads as before
Proof load application time is reduced from 60s to 15s

Test is easier to comply to
No retesting required

13. Arm strength test
– Horizontal

Was test #14 in
previous version.
Same loads as before
Proof load application time is reduced from 60s to 15s

Test is easier to comply to
No retesting required

14. Backrest
durability (Type 1)

Was test #15 in
previous version.
Same test protocol, load on the seat changed from 102 kg to 109 kg (225 to
240 lbs)

Test more difficult to comply to
Retesting required

15. Backrest
durability (Type 2 & 3)

Was test #16 in
previous version.
Same test protocol, load on the seat changed from 102 kg to 109 kg (225 to
240 lbs)

Test more difficult to comply to
Retesting required

16. Caster/chair
base durability test

Was test #17 in
previous version.
More specific  test protocol for
non-pedestal chairs.
Test now applies to chairs with glides/casters combination.
Load changed from 113 kg to 122 kg (250 to 270 lbs)

Test more difficult to comply to
Retesting required

17. Leg strength
test – front application & side application 

Was test #18 in previous
version.
Same test protocol
Reference to optional Simultaneous side load test

Same test
No retesting required

18. Footrest Static
Load Test

Was test #19 in
previous version.
Same as before

Same test
No retesting required

19. Footrest
durability cyclic

Was test #20 in
previous version.
Same as before

Same test
No retesting required

20. Arm durability
test

Was test #21 in
previous version.
Same as before

Same test
No retesting required

21. Out Stop Tests
for Chairs with Manually Adjustable Seat Depth

Was test #22 in
previous version .Same as before

No change

22. Tablet Arm
Static Load Test

Was test #23 in
previous version.
Same as before

No significant change

23. Tablet Arm Load
Ease Test – Cyclic

Was test #24 in
previous version.
Load applied reduced from 35kg to 25kg (77 lbs to 55 lbs)
Loading  area is now at weakest point
whereas it was centered on surface, leading to more stress on structure

Testing maybe required depending on tablet arm configuration

24. Structural
Durability Test – Cyclic

New test

Testing required for non-pedestal base chairs

Removed from X5.1

 

Base test – Static

Moved to informative
appendix

No retesting required