Standard No.:	GB/T 23932-2025
English Name:	Double skin metal faced insulating panels for building
Chinese Name:	建筑用金属面绝热夹芯板
Chinese Classification:	Q25    Heat insulation, sound absorption, light fireproof material
Professional Classification:	GB    National Standard
ICS Classification:	91.120.10 91.120.10    Thermal insulation of buildings 91.120.10
Source Content Issued by:	SAMR;SAC
Issued on:	2025-12-31
Implemented on:	2026-7-1
Status:	valid
Superseding:	GB/T 23932-2009 Double skin metal faced insulating panels for building
Target Language:	English
File Format:	PDF
Word Count:	19000 words
Translation Price(USD):	570.0
Delivery:	via email in 1 business day

GB/T 23932-2025 Double skin metal faced insulating panels for building 1 Scope This document specifies the classification, specifications and dimensions, designation, raw materials, technical requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of double skin metal faced insulating panels for building. This document is applicable to the production and acceptance of factory made double skin metal faced insulating panels for exterior walls, partition walls, roofs and ceilings of industrial and civil buildings. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2406.2 Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature test GB/T 3190 Chemical composition of wrought aluminium and aluminium alloys GB/T 3280 Cold rolled stainless steel plate, sheet and strip GB/T 3880.1 Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 1: Technical conditions of delivery GB/T 3880.2 Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 2: Mechanical properties GB/T 3880.3 Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 3: Tolerances on forms and dimensions GB/T 4132 Thermal insulation - Vocabulary GB/T 5480 Test methods for mineral wool and its products GB/T 6891 Aluminium and aluminium alloy profiled sheet GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgment of limiting values GB 8624 Classification for burning behavior of building materials and products GB/T 10801.1-2021 Moulded polystyrene foam for thermal insulation (EPS) GB/T 10801.2-2018 Rigid extruded polystyrene foam board for thermal insulation (XPS) GB/T 12754 Prepainted steel sheet and strip GB/T 12755 Profiled steel sheet for building GB/T 13475 Thermal insulation - Determination of steady-state thermal transmission - Properties - Calibrated and guard hot box GB/T 17795 Glass wool thermal insulating products for building GB/T 19686 Rock wool thermal insulation products for building applications GB/T 21558-2008 Rigid polyurethane cellular plastics used in the thermal insulation of building GB/T 25997-2020 Polyisocyanurate (PIR) products for thermal insulation GB/T 36145 Profiled stainless steel sheet for buildings YB/T 6108 Prepainted stainless steel sheet and strip YS/T 431 Aluminium and aluminium alloy - Coil coated sheet and strip 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 4132 and the following apply. 3.1 double skin metal faced insulating panels self-supporting composite panel consisting of double metal surface materials and insulating core material bonded between them Note: Abbreviated as "double skin panel". 3.2 insulating core material insulating material composed of inorganic mineral wool strips and organic heat insulation boards 3.3 rail closed structure on both sides of the long side of the insulating core material layer of the double skin panel 4 Classification, specifications and dimensions and designation 4.1 Classification 4.1.1 Classification by metal surface materials: a) prepainted steel sheet, codenamed S; b) stainless steel sheet, codenamed SUS; c) prepainted stainless steel sheet, codenamed SS;

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification, specifications and dimensions and designation 5 Raw materials 6 Technical requirements 7 Test methods 8 Inspection rules 9 Marking, packaging, transportation and storage Annex A (Informative) Other insulating core materials Annex B (Informative) Calculation method for mid-span deflection of simply supported panel under uniformly distributed area load Annex C (Normative) Method for determining permissible dimensional deviations Annex D (Normative) Method for determining peeling resistance Annex E (Normative) Method for determining flexural bearing capacity Annex F (Normative) Method for determining the bond strength Annex G (Normative) Method for determining the width of rail material Bibliography