ANSI/UL 1777a-2009 烟囱衬壁安全标准

标准号：ANSI/UL 1777a-2009
中文标准名称：烟囱衬壁安全标准
英文标准名称：Standard for Safety for Chimney Liners
标准类型：Q76
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Q76
国际标准分类号：91.060.40
适用范围：The following changes in requirements are being proposed: Revisions to the strength requirements of UL 1777 including: specifying that Loading Test for Metallic Chimney Liners, Section 23, does not apply to corrugated liners; reducing loading tests of liners for gas-fueled appliances from 200 to 100 pounds; and specifying that a liner intended for venting gas-fueled only appliances is not subject to the sweep test.