BIFMA X6.1

Lancée en avril 2018 pour remplacer la version originale, ANSI/BIFMA X6.1 Educational Seating est la norme la plus récente sur les essais de sièges dans des établissements d’enseignement (de préscolaire à l’université). Cependant, cette norme ne couvre pas les chaises de bureau (BIFMA X5.1 ou BIFMA X5.11) ni les sièges utilisés dans les espaces publics à haute utilisation (BIFMA X5.4). Micom offre les essais BIFMA X6.1 dans le cadre de ses essais sur meubles de bureau. Par ailleurs, cette norme comprend 3 catégories d’utilisateurs, soit :

Size A* Size B* Size C*
Hauteur d’assise <352mm (13.9 in) ≥352mm (13.9 in) & <425mm (16.7 in) ≥425mm (16.7 in)
Poids de l’utilisateur 34 kg (74 lbs)

(95% femelle, 6 ans)

91 kg (200 lbs)

(95% femelle, 12 ans)

125 kg (275 lbs)

(95% mâle, adulte)

* Les chaises réglables en hauteur doivent être mesurées dans la position la plus élevée pour la classification.

BIFMA X6.1 a 20 essais et couvre trois types de sièges:

  • Angle de siège fixe, chaise à dossier fixe (« Fixed Seat Angle, Fixed Backrest Chair »)
  • Chaise de bureau (« Chair Desk »)
  • Table de banc convertible (« Convertible Bench Table »)

Tous les essais ne doivent pas être effectués sur tous les types de sièges. Le tableau ci-dessous indique quels essais doivent être effectués sur quel type de sièges tant que la fonctionnalité testée soit disponible et que l’essai soit possible:

 

Section Number Description Chair Chair Desk Conv. Bench/Table
5 Stability Tests X X X
6 Backrest Strength Test – Static X X X
7 Backrest Durability Test – Cyclic X X X
8 Drop Test – Dynamic X X X
9 Seat Static Loading Test (only if unable to perform Drop Test due to insufficient clearance)  X X
10 Seating Durability Tests – Cyclic X X X
11 Arm Strength Test – Vertical – Static X
12 Arm Strength Test – Horizontal – Static X
13 Arm Durability Test – Angular – Static X
14 Caster/Chair Base Durability Test – Cyclic X X
15 Durability Test for Convertible Bench Tables with Casters X
16 Leg Strength Test – Front and Side Application X X X
17 Structural Member Strength Test X X X
18 Swivel Test X
19 Tablet Arm Test – Front Stability X
20 Tablet Arm Test – Static X
21 Tablet Arm Load Ease Test – Cyclic X
22 Chair Desk and Table Top Horizontal Surface Vertical Load Tests X X
23 Chair Desk and Convertible Bench Table Top Load Ease Test – Cyclic X X
24 Static Loading of Storage (Backpack) Hooks & Unit Stability X

BIFMA X6.1 est comparable à BIFMA X5.1 et BIFMA X5.4, et le tableau suivant peut démontrer les similarités et différences entre chaque norme.

ANSI/BIFMA X6.1-2018 ANSI/BIFMA X5.1-2017 ANSI/BIFMA X5.4-2012 Comparison Conclusion
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 individual 1. Scope: Tests developed with an estimated 10 years product life based on a single shift use with a 253 lb individual Size 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 A Size B Size C
Individual weight 74 lbs 200 lbs 275 lbs
Seat Height < 13.9″ > 13.9″ & < 16.7″ > 16.7″
N/A 5. Back strength test (Type I & II) 5. Backrest Strength Test Horizontal No 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 A Size B Size C
Functional Load 75 lbf, 1 minute 120 lbf, 1 minute 150 lbf, 1 minute
Proof Load 113 lbf, 10 seconds 181 lbf, 10 seconds 225 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 chairs X5.1 & X5.4 cover X6.1
  Size A Size B Size C
Bag Diameter 12 in. 12 in. 16 in.
Functional Load 113 lbs 169 lbs 225 lbs
Proof Load 150 lbs 225 lbs 300 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 A Size B Size C
Load on the seat 75 lbs 200 lbs 270 lbs
N/A 9. Tilt mechanism test 20. Tilt mechanism test – Cyclic No such test in X6.1  

 

ANSI/BIFMA X6.1-2018 ANSI/BIFMA X5.1-2017 ANSI/BIFMA X5.4-2012 Comparison Conclusion
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 A Size B Size C Convertible bench-table
Bag Diameter 12” 12” 16” 16”
Bag Weight 63 lbs 94 lbs 125 lbs 125 lbs
225 lbs on other seats
# of cycles 100,000 100,000 100,000 40,000
10.3. Front Corner Load-Ease Test – Cyclic 10.4. Front Corner Load- Ease Test – Cyclic
Loading disk: 8 in diameter
Load: 200 lbs
# of cycles: 40,000 total
N/A This 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 A Size B Size C
N/A N/A Same 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 chairs X5.1 and X5.4 cover X6.1 for size C chairs.
Size A & B have a different protocol.
  Size A Size B Size C
Seat loading 79 lbf 135 lbf 6 disks
Horizontal force 22.5 lbf 40 lbf F = 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 A Size B Size C
Vertical load on seat 79 lbs 112 lbs 135 lbs

 

ANSI/BIFMA X6.1-2018 ANSI/BIFMA X5.1-2017 ANSI/BIFMA X5.4-2012 Comparison Conclusion
11. Arm strength test – Vertical 12. 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 A Size B Size C
Functional Load 85 lbf, 1 minute 127 lbf, 1 minute 169 lbf, 1 minute
Proof Load 127 lbf, 10 seconds 190 lbf, 10 seconds 253 lbf, 10 seconds
12. Arm strength test – Horizontal 13. 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 A Size B Size C
Functional Load 50 lbf, 1 minute 75 lbf, 1 minute 100 lbf, 1 minute
Proof Load 75 lbf, 10 seconds 113 lbf, 10 seconds 150 lbf, 10 seconds
N/A 14. Backrest durability (Type I) 7. Backrest Durability Test – Horizontal – Cyclic No 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 A Size B Size C
Load on the seat 67 lbs 175 lbs 240 lbs
Horizontal force on the backrest 38 lbf 60 lbf 75 lbf

 

ANSI/BIFMA X6.1-2018 ANSI/BIFMA X5.1-2017 ANSI/BIFMA X5.4-2012 Comparison Conclusion
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 A Size B Size C
Load on the seat 75 lbs 200 lbs 270 lbs
Number of cycles 25,000 25,000 25,000
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/A 18. Footrest Static Load Test – Vertical N/A No such test in X6.1 or X5.4.  
N/A 19. Footrest Durability Test – Vertical N/A No 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/A 21. Out Stop Tests for Chairs with Manually Adjustable
Seat Depth
N/A No such test in X6.1 or X5.4.  
20. Tablet Arm Static Load Test 22. 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 chairs X5.1 & X5.4 cover X6.1
Size A Size B Size C
N/A N/A 150 lbf, 1 minute
21. Tablet Arm Load Ease Test – Cyclic 23. 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 chairs X5.1 & X5.4 cover X6.1
Size A Size B Size C
N/A N/A 77 lbf; 100,000 cycles
ANSI/BIFMA X6.1-2018 ANSI/BIFMA X5.1-2017 ANSI/BIFMA X5.4-2012 Comparison Conclusion
N/A 24. Structural Durability Test
– Cyclic
N/A No such test in X6.1 or X5.4  
9. Seat Static Loading (only if unable to perform Drop Test due to insufficient clearance) N/A N/A No 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

Création de plans d’essai rentables

Dans le but de minimiser les coûts d’essai et de produit, les essais se font seulement sur le produit ayant le plus gros risque d’échec (« worst-case scenario ») et couverai la famille de produit. Par exemple, un siège simple serait le pire scénario pour des tests de stabilité, tandis qu’un siège à occupation multiple serait le pire pour des essais d’impact. Le plan d’essai du produit à risque plus élevé est établi en tenant compte de facteurs tels que la construction, la plus longue distance non-supporté, etc. Nos experts seront heureux de faire cette analyse GRATUITEMENT pour vous; cliquez ici pour nous contacter.

Autres méthodes d’essai qui pourraient vous intéresser :

Pour d’autres méthodes d’essais sur ameublement reliés, veuillez consulter; Essais BIFMA, BIFMA X5.1 ou BIFMA X5.4.

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