比夫玛X5。11-2015（R2020）旨在为制造商、规范制定者和用户提供一个共同的基础，用于评估大型办公椅（在本标准中通常称为“用户”）的安全性、耐用性和结构充分性。

BIFMA X5.11-2015 (R2020) is intended to provide manufacturers, specifiers, and users with a common basis for evaluating the safety, durability, and structural adequacy of office chairs for large occupants (often referred to as "users" throughout this standard).