DB21/T 4423-2026 Active Liaoning ProvinceLocal standards

DB21/T 4423-2026 Technical Specification for Close-to-Zero Energy Buildings

Publish Date: 2026-05-07 Implement Date: 2026-06-07 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: DB21/T 4423-2026

Standard Type: Local standards

Standard Status: Active

is_force_gb: no

CCS Name: Residential and public building projects

ICS Name: The insulation of buildings

Publish Date: 2026-05-07

Implement Date: 2026-06-07

Publisher: 辽宁省市场监督管理局

Technical Committee: 辽宁省住房和城乡建设厅

Development Information

Drafting Units:

沈阳建筑大学、中国建筑科学研究院有限公司、辽宁秦恒科技有限公司、辽宁省建设科学研究院有限责任公司、大连理工大学、辽宁省建筑设计研究院有限责任公司、沈阳市热力工程设计研究院有限公司、中国建筑东北设计研究院有限公司、山东圣泉新材料股份有限公司、营口市城乡建设与公用事业中心、辽宁省市政工程设计研究院有限责任公司、沈阳紫微恒检测设备有限公司、都市发展设计集团有限公司

Related Standards

GB/T 5480.7-1987 Replaced

GB/T 5480.7-1987 Test method for the moisture absorption of mineral wool products

Publish Date: 1987-04-21

GB/T 10299-1988 Replaced

GB/T 10299-1988 Test method for hydrophobic nature of thermal insulation

Publish Date: 1988-12-30

GB/T 11833-1989 Replaced

GB/T 11833-1989 Thermal insulation—Determination of steady-state thermal transmission properties—Spherical method

Publish Date: 1989-11-30

GB/T 13475-1992 Replaced

GB/T 13475-1992 Building element—Determination of steady-state thermal transmission properties—Calibrated and guarded hot box

Publish Date: 1992-06-04

GB/T 13480-1992 Replaced

GB/T 13480-1992 Test method for measuring compressive properties of mineral wool products

Publish Date: 1992-06-04

GB/T 4132-1996 Replaced

GB/T 4132-1996 Definitions of terms relating to thermal insulating materials

Publish Date: 1996-09-13