ANSI/BIFMA X6.4-2021 is intended to provide manufacturers, specifiers, and users with a common basis for evaluating the safety, durability, and structural adequacy of business and institutional occasional-use seating. Occasional-use seating is normally used in indoor common/shared spaces such as waiting, reception, visitor seating in patient rooms*, restaurant/dining/cafeteria** settings and other gathering areas. Occasional-use seating may also be used in the home environment. Occasional-use seating products are generally not adjustable for personal use. Occasional-use seating includes products with single seat units, units with multiple seating positions within one unit or ganged seating units. Seating units that must be attached to the building structure for support or stability purposes are not specifically addressed in this standard. This standard does not address general-purpose or task-oriented office chairs, or seating used for stadiums, auditoriums, lecture rooms, airports/train stations and similar high-use public seating areas.

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PDF Pages	PDF Title
1	Cover
2	Copyright
3	ANSI Approval
4	Foreword
5	Contents
8	1 Scope
10	2 Definitions
14	3 General
19	4 Classification and Applicable Tests
23	Figures 5a through 5d Backrest Strength Test – Horizontal – Static………… …………………………….. 20 –
24	5 Backrest Strength Test – Horizontal – Static
26	6 Backrest Strength Test – Vertical – Static 6 Backrest Strength Test – Vertical – Static
29	7a through 7d Backrest Durability Test – Horizontal – Static ………………………………………. 26 –
30	7 Backrest Durability Test – Horizontal – Cyclic
32	8 Backrest Durability Test – Vertical – Cyclic
33	8 Backrest Durability Test – Vertical – Cyclic
34	9 Arm Strength Test – Horizontal – Static
35	9 Arm Strength Test – Horizontal – Static
39	10 Arm Strength Test – Vertical – Static 10a through 10c Arm Strength Test – Vertical – Static………….. ………………………………….. 35 –
41	11 Arm Durability Test for Multiple Seating Units – Horizontal – Cyclic
42	11 Arm Durability Test for Multiple Seating Units – Horizontal – Cyclic
43	12a through 12c Arm Durability Test for Multiple Seating Units – Vertical – Cyclic
44	12 Arm Durability Test for Multiple Seating Units – Vertical – Cyclic
45	13a Arm Loading Device – Cyclic
46	13 Arm Durability Test for Single Seat Units – Angular – Cyclic 13b Arm Durability Test – Angular – Cyclic
48	14 Seating Durability Test – Cyclic
49	14 Seating Durability Tests – Cyclic
51	15a & 15b Drop Test – Dynamic
52	15 Drop Test – Dynamic
54	16 Leg Strength Test – Front and Side 16a & 16b Leg Strength Test – Front and Side
57	17 Unit Drop Test – Dynamic 17 Unit Drop Test – Dynamic
59	18a through 18c Caster/Unit Base Durability Test – Cyclic
60	18 Caster/Unit Base Durability Test – Cyclic
61	18d & 18e Caster/Unit Leg Durability Test – Cyclic
64	19a & 19b Swivel Test – Cyclic
65	19 Swivel Test – Cyclic
66	20 Tilt Rocker/Glider Mechanism Test – Cyclic
67	20 Tilt / rocker / glider Mechanism Test – Cyclic
70	21 Stability Tests
79	21a through 21i Stability Tests ……………………………………………………………… 66, 67, 71 – 75,
81	22 Tablet Arm Load Ease Test – Cyclic
82	22 Tablet Arm Load Ease Test – Cyclic
83	23 Tablet Arm Load Test – Static
84	23 Tablet Arm Load Test – Static
85	24 Structural Durability Test – Side-to-Side – Cyclic
86	24 Structural Durability Test – Side-to-Side – Cyclic
87	25 Cycle Test for Recliners – Backrest and/or Legrest Mechanism Durability
89	26 Legrest Strength Test – Static Load 26 Legrest Strength Test – Static Load
91	27 Footrest Static Load Test for Stools – Vertical
92	27 Footrest Static Load Test for Stools – Vertical
94	28 Footrest Durability Test for Stools – Vertical – Cyclic 28 Footrest Durability Test for Stools – Vertical – Cyclic
96	Appendix A: Impact Test Bag Construction – Informative
103	Appendix B: Stability Disk – Construction Details
104	Appendix C: Front Stability Load Locator Fixture – Construction Details – Informative
112	Appendix D: BIFMA Position – Chair Weight Limits / Load Ratings – Informative
113	Appendix E: Recliner Pinch Point Cautions – Informative
114	Appendix F: Example of a Recliner Cycle Test Fixture – Informative
115	Appendix G: Recliner Front Stability with Legrest Extended – Informative
116	Appendix H: Figure of Leg-Base Chair – Informative
117	Appendix I: Template for Rear Stability – Normative
118	Appendix J: Summary of Significant Changes – Informative
119	Appendix K: Guidance for Seating Units with Privacy Screens or Tables – Informative Appendix L: Guidance for Seating Flammability – Informative
120	Appendix M: Structural Durability Test – Front-to-Back – Cyclic – Informative
122	Appendix N: Guide for Seating Positions for Non-linear Multiple Seating Units – Informative

Published By	Publication Date	Number of Pages
BIFMA	2021


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Standard Title	ANSI/BIFMA X6.4-2021 Occasional-Use Seating
Published Code	BIFMA
Publication Date	2021

BIFMA X6.4 2021

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