BIFMA X6.1

ANSI/BIFMA X6.1 Educational Seating was released in April 2018 and replaces the original version, which was released in 2012. Micom offers BIFMA X6.1 testing as part of its Office Furniture Testing services.  This standard covers seating products used in educational institutions from pre-school all the way to college and university. It does not address office chairs (BIFMA X5.1 or BIFMA X5.11) or seating used in high-use public areas (BIFMA X5.4). It covers users in 3 categories or “sizes”:

Size A*Size B*Size C*
Seat Height<352mm (13.9 in)≥352mm (13.9 in) and <425mm (16.7 in)≥425mm (16.7 in)
User Weight34 kg (74 lbs)

(95% Female, 6 years)

91 kg (200 lbs)

(95% Female, 12 years)

125 kg (275 lbs)

(95% Male, adult)

*Height adjustable chairs shall be measured in the highest position for classification purposes.

BIFMA X6.1 has 20 tests and covers three types of educational seating units:

  • Fixed Seat Angle, Fixed Backrest Chair
  • Chair Desk
  • Convertible Bench Table

Not all tests need to be done on all units. The table below shows which tests need to be done on which chair type as long as the feature tested is available and the test applicable:

Section NumberDescriptionChairChair DeskConv. Bench/Table
5Stability TestsXXX
6Backrest Strength Test – StaticXXX
7Backrest Durability Test – CyclicXXX
8Drop Test – DynamicXXX
9Seat Static Loading Test (only if unable to perform Drop Test due to insufficient clearance) XX
10Seating Durability Tests – CyclicXXX
11Arm Strength Test – Vertical – StaticX
12Arm Strength Test – Horizontal – StaticX
13Arm Durability Test – Angular – StaticX
14Caster/Chair Base Durability Test – CyclicXX
15Durability Test for Convertible Bench Tables with CastersX
16Leg Strength Test – Front and Side ApplicationXXX
17Structural Member Strength TestXXX
18Swivel TestX
19Tablet Arm Test – Front StabilityX
20Tablet Arm Test – StaticX
21Tablet Arm Load Ease Test – CyclicX
22Chair Desk and Table Top Horizontal Surface Vertical Load TestsXX
23Chair Desk and Convertible Bench Table Top Load Ease Test – CyclicXX
24Static Loading of Storage (Backpack) Hooks & Unit StabilityX

BIFMA X6.1 is similar to both BIFMA X5.1 and BIFMA X5.4. The table below compares the current versions of all three standards.

BIFMA X6.1 vs BIFMA X5.1 and BIFMA X5.5 comparison

ANSI/BIFMA X6.1-2018ANSI/BIFMA X5.1-2017ANSI/BIFMA X5.4-2012ComparisonConclusion
1. Scope: Tests developed with an estimated 10 years product life based on 6.5 to 8 hours/day use and 170-180 days/year.1. Scope: Tests developed with an estimated 10 years product life based on a single shift use with a 275 lb individual1. Scope: Tests developed with an estimated 10 years product life based on a single shift use with a 253 lb individualSize C of X6.1 is identical to the user in X5.1. Current version of X5.4 is using the older 253 lb user weight. 
 Size ASize BSize C
Individual weight74 lbs200 lbs275 lbs
Seat Height< 13.9″> 13.9″ & < 16.7″> 16.7″
N/A5. Back strength test (Type I & II)5. Backrest Strength Test HorizontalNo such tests in X6.1 
6. Back Strength Test
Multiple seaters shall be tested simultaneously
6. Back strength test (Type III)
Functional Load: 150 lbf, 1 minute
Proof Load: 225 lbf, 1 minute
5. Backrest Strength Test Horizontal
Functional Load: 150 lbf, 1 minute
Proof Load: 225 lbf, 1 minute
Loads are the same for X5.1 Type III, X5.4 and X6.1 Size C chairs. However, the Proof Load is maintained for 10 seconds in X6.1 whereas it is maintained 60 seconds in X5.1 and X5.4.X5.1 & X5.4 cover X6.1 for single seater chairs
 Size ASize BSize C
Functional Load75 lbf, 1 minute120 lbf, 1 minute150 lbf, 1 minute
Proof Load113 lbf, 10 seconds181 lbf, 10 seconds225 lbf, 10 seconds
8. Drop test
Drop Height: 6″
7. Drop test
Bag: 16″ diameter
Drop Height: 6″
Functional Load: 225 lbs
Proof Load: 300 lbs
15. Drop Test – Dynamic
Bag: 16″ diameter
Drop height: 6″
Functional Load: 225 lbs
Proof Load: 300 lbs
Same test for X5.1, X5.4 and X6.1 Size C chairsX5.1 & X5.4 cover X6.1
 Size ASize BSize C
Bag Diameter12 in.12 in.16 in.
Functional Load113 lbs169 lbs225 lbs
Proof Load150 lbs225 lbs300 lbs
18. Swivel cycling test
# of cycles: 120,000 cycles
8. Swivel cycling test
Load on the Seat: 270 lbs
# of cycles: 120,000
19. Swivel Test – Cyclic
Load on the Seat: 250 lbs
# of cycles: 120,000
Same test for X5.1 and X6.1 Size C chairs. Slightly lower weight in BIFMA X5.4.X5.1 covers X5.4 & X6.1
 Size ASize BSize C
Load on the seat75 lbs200 lbs270 lbs
N/A9. Tilt mechanism test20. Tilt mechanism test – CyclicNo such test in X6.1 

 

ANSI/BIFMA X6.1-2018ANSI/BIFMA X5.1-2017ANSI/BIFMA X5.4-2012ComparisonConclusion
10.3. Seating impact test
Drop Height: 1.4″
10.3. Seating impact test
Bag Diameter: 16″
Drop height: 1.4″
Bag Weight: 125 lbs
14. Seating Durability Tests – Cyclic
Bag: 16″ Diameter
Drop height: 1.2″
Bag Weight: 125 lbs; 225 lbs on other seats
Same test for X5.1 and X6.1 Size C chairs. Slightly lower drop height in BIFMA X5.4.X5.1 covers X5.4 & X6.1 for single-seat units. X6.1 covers X5.4 for multiple seat units.
 Size ASize BSize CConvertible bench-table
Bag Diameter12”12”16”16”
Bag Weight63 lbs94 lbs125 lbs125 lbs
225 lbs on other seats
# of cycles100,000100,000100,00040,000
10.3. Front Corner Load-Ease Test – Cyclic10.4. Front Corner Load- Ease Test – Cyclic
Loading disk: 8 in diameter
Load: 200 lbs
# of cycles: 40,000 total
N/AThis test does not apply to Size A and B chairs. Same test for X5.1 and X6.1 Size C chairs. No such test in X5.4.X5.1 covers X6.1
Size ASize BSize C
N/AN/ASame as X5.1
5.3 Rear Stability test:
Tilting chairs shall be tested in both conditions using the same protocol
11.3.1 Rear Stability test for type III chairs
6 Disks on the seat, horizontal force = 1.1 (47-H)
11.3.2 Rear Stability test for type I & II chairs
13 Disks on the seat
21.3 Rear Stability for Non-tilting Units
6 disks on the seat, horizontal force=1.1*(47-H)
21.4 Rear Stability for Tilting Units
13 disks on seat
Same test for X5.1 Type III, X5.4 non-tilting and X6.1 Non-Tilting Size C chairsX5.1 and X5.4 cover X6.1 for size C chairs.
Size A & B have a different protocol.
 Size ASize BSize C
Seat loading79 lbf135 lbf6 disks
Horizontal force22.5 lbf40 lbfF = 1.1 (47-H)
5.4 Front Stability test:11.4. Front Stability
135 lbf vertical load on the seat
21.5 Front Stability
40% of unit weight applied at 45°
Same test for X5.1 and X6.1 Size C chairs. X5.4 is a completely different test.X5.1 covers X6.1
 Size ASize BSize C
Vertical load on seat79 lbs112 lbs135 lbs

 

ANSI/BIFMA X6.1-2018ANSI/BIFMA X5.1-2017ANSI/BIFMA X5.4-2012ComparisonConclusion
11. Arm strength test – Vertical12. Arm strength test – Vertical
Functional Load: 169 lbf, 1 minute
Proof Load: 253 lbf, 1 minute
10. Arm Strength Test – Vertical
Functional Load:
-Armrest width >3in: 200 lbf, 1 min
-Armrest width≤3 in: 169 lbf, 1 min
Proof Load:
-Armrest width >3in: 300 lbf, 1 min
-Armrest width≤3 in: 253 lbf, 1 min
Loads are the same for X5.1 and X6.1 Size C chairs. However, the Proof Load is maintained for 10 seconds in X6.1 whereas it is maintained 60 seconds in X5.1. Load changes based on armrest width in X5.4 but always the same or higher.X5.4 covers X5.1 & X6.1
 Size ASize BSize C
Functional Load85 lbf, 1 minute127 lbf, 1 minute169 lbf, 1 minute
Proof Load127 lbf, 10 seconds190 lbf, 10 seconds253 lbf, 10 seconds
12. Arm strength test – Horizontal13. Arm strength test – Horizontal
Functional Load: 100 lbf, 1 minute
Proof Load: 150 lbf, 1 minute
9. Arm Strength Test – Horizontal
Functional Load:
-Dist. Btwn armrests < 35 in: 100 lbf, 1 min
-Dist. Btwn armrests ≥ 35 in: 133 lbf, 1 min
Proof Load:
-Dist. Btwn armrests < 35 in: 150 lbf, 1 min
-Dist. Btwn armrests ≥ 35 in: 200 lbf, 1 min
Loads are the same for X5.1 and X6.1 Size C chairs. However, the Proof Load is maintained for 10 seconds in X6.1 whereas it is maintained 60 seconds in X5.1. Load changes based on distance between armrests in X5.4 but always the same or higher.X5.4 covers X5.1 & X6.1
 Size ASize BSize C
Functional Load50 lbf, 1 minute75 lbf, 1 minute100 lbf, 1 minute
Proof Load75 lbf, 10 seconds113 lbf, 10 seconds150 lbf, 10 seconds
N/A14. Backrest durability (Type I)7. Backrest Durability Test – Horizontal – CyclicNo such test in X6.1 
7. Backrest Durability
# of cycles for chairs: 120,000
# of cycles for convertible bench/tables: 40,000
15. Backrest durability (Type II & III)
Load on the seat: 240 lbs
Horizontal force on the backrest: 75 lbf
# of cycles: 120,000
7. Backrest Durability Test – Horizontal – Cyclic
Load on seat: 225 lbs
Horizontal force on the backrest: 75 lbf
# of cycles: 120,000
Same test for X5.1 and X6.1 Size C chairs. Lower load on the seat in X5.4.X5.1 covers X5.4 & X6.1
 Size ASize BSize C
Load on the seat67 lbs175 lbs240 lbs
Horizontal force on the backrest38 lbf60 lbf75 lbf

 

ANSI/BIFMA X6.1-2018ANSI/BIFMA X5.1-2017ANSI/BIFMA X5.4-2012ComparisonConclusion
14. Caster/chair base durability test Cycles over flat surface
# of cycles: 23,000 cycles
16. Caster/chair base durability test
Load on the seat: 270 lbs
# of cycles: 100,000 total
18. Caster/Unit Base Durability Test – Cyclic
Load on seat: 250 lbs
# of cycles: 25,500 total
Loads are the same for X5.1 and X6.1 Size C chairs. However, the number of cycles 25,000 cycles in X6.1 whereas it is 100,000 in X5.1. X5.4 has different loads and cycle counts.X5.1 covers X6.1
 Size ASize BSize C
Load on the seat75 lbs200 lbs270 lbs
Number of cycles25,00025,00025,000
16. Leg strength test
Functional Load: 75 lbf, 1 minute
Proof Load: 113 lbf, 10 seconds
If both legs have identical construction it is not required to test both
17. Leg strength test – Front and Side Application
Functional Load: 75 lbf, 1 minute
Proof Load: 113 lbf, 1 minute
16. Leg Strength Test – Front and Side Application
Functional Load: 75 lbf, 1 minute
Proof Load: 113 lbf, 1 minute
Loads are the same for X5.1, X5.4, and X6.1. However, the Proof Load is maintained for 10 seconds in X6.1 whereas it is maintained 60
seconds in X5.1 & X5.4
X5.1 & X5.4 cover X6.1
N/A18. Footrest Static Load Test – VerticalN/ANo such test in X6.1 or X5.4. 
N/A19. Footrest Durability Test – VerticalN/ANo such test in X6.1 or X5.4. 
13. Arm durability test – Angular – Cyclic (Size C chairs only)
Load applied: 90 lbf per arm
# of cycles: 60,000
20. Arm durability test – Cyclic
Load applied: 90 lbf per arm
# of cycles: 60,000
13. Arm durability test – Angular – Cyclic
Load applied: 90 lbf per arm
# of cycles: 60,000
This test does not apply to Size A and B chairs. Same test for X5.1, X5.4 and
X6.1 Size C chairs
X5.1 & X5.4 cover X6.1
N/A21. Out Stop Tests for Chairs with Manually Adjustable
Seat Depth
N/ANo such test in X6.1 or X5.4. 
20. Tablet Arm Static Load Test22. Tablet Arm Static Load Test
Load applied: 150 lbf, 1 minute
23. Tablet Arm Load test – Static
Load applied: 150 lbf, 1 minute
This test does not apply to Size A and B chairs. Same test for X5.1, X5.4 and X6.1 Size C chairsX5.1 & X5.4 cover X6.1
Size ASize BSize C
N/AN/A150 lbf, 1 minute
21. Tablet Arm Load Ease Test – Cyclic23. Tablet Arm Load Ease Test – Cyclic
Load applied: 77 lbf
# of cycles: 100,000
22. Tablet Arm Load Ease Test – Cyclic
Load applied: 77 lbf
# of cycles: 100,000
This test does not apply to Size A and B chairs. Same test for X5.1, X5.4 and X6.1 Size C chairsX5.1 & X5.4 cover X6.1
Size ASize BSize C
N/AN/A77 lbf; 100,000 cycles
ANSI/BIFMA X6.1-2018ANSI/BIFMA X5.1-2017ANSI/BIFMA X5.4-2012ComparisonConclusion
N/A24. Structural Durability Test
– Cyclic
N/ANo such test in X6.1 or X5.4 
9. Seat Static Loading (only if unable to perform Drop Test due to insufficient clearance)N/AN/ANo such tests in X5.1 & X5.4 
10.4. Load-Ease (Simulated Impact) Test for Chair-Desks and Fixed Tablet Arm Chairs
15. Durability Test for Convertible Bench Tables with Casters
17. Structural Member Strength Test
19. Tablet Arm Test – Front Stability
22. Chair Desk and Table Top Horizontal Surface Vertical Load Tests
23. Chair Desk and Convertible Bench Table Top Load Ease Test – Cyclic
24. Static Loading of Storage (Backpack) Hooks & Unit Stability

 

We can help you create cost-effective test plans

When creating test plans, it is recommended to use a “worst case scenario” approach which minimizes both test and product costs; not all tests need to be done on all chairs.  For example, some tests are considered “worst case” when performed on single seating units (ex: stability tests) and others on multiple seating units (ex: seating impact/durability tests).  The product worst case scenario is established by considering factors such as construction, longest unsupported span, etc. Our experts will be happy to do this analysis FREE OF CHARGE for you; contact us now for more information.

Other related test methods:

For additional related Furniture testing methods please see; BIFMA Testing, BIFMA X5.1, or BIFMA X5.4

 

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