GB/T 25997-2020Polyisocyanurate (PIR) products for thermal insulation (English PDF)
绝热用聚异氰脲酸酯制品
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Recommended
Issue date
June 2, 2020
Implementation date
May 1, 2021
Scope
GB/T 25997-2020 is the English-translated version of 绝热用聚异氰脲酸酯制品.
GB/T 25997-2020 is the Chinese standard "Polyisocyanurate (PIR) products for thermal insulation". Its scope clause reads: This standard stipulates the classification and marking, requirements, test methods, inspection rules and markings, and markings of polyisocyanurate products (PIR) for thermal insulation Sign, pack, transport and store.
This standard applies to polyisocyanurate produced with polyol/polyisocyanate as the main raw material at a temperature of -183°C~150°C Ester products. Its clauses include terms and definitions.
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Document preview — GB/T 25997-2020
National Standard of the People's Republic of China
- ICS
- 91.120.10
- Classification
- Q25
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- 1 Scope
- 2 Room temperature test
- 3 Terms and definitions
1 Scope
This standard stipulates the classification and marking, requirements, test methods, inspection rules and markings, and markings of polyisocyanurate products (PIR) for thermal insulation
Sign, pack, transport and store.
This standard applies to polyisocyanurate produced with polyol/polyisocyanate as the main raw material at a temperature of -183°C~150°C
Ester products.
2 Normative references
The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 191 Icon mark for packaging, storage and transportation
GB/T 2406.2 Determination of combustion behavior of plastics by oxygen index method Part 2.Room temperature test
GB/T 2918-2018 Standard environment for plastic sample condition adjustment and testing
GB/T 4132 Thermal insulation materials and related terms
GB/T 5480 Test method for mineral wool and its products
GB/T 5486 Test method for inorganic rigid insulation products
GB/T 6342 Determination of linear dimensions of foamed plastic and rubber
GB/T 6343 Determination of Apparent Density of Foam Plastic and Rubber
GB 8624-2012 Classification of combustion performance of building materials and products
GB/T 8810 Determination of water absorption of rigid foam
GB/T 8811 rigid foam plastic dimensional stability test method
GB/T 8813 Determination of compressive properties of rigid foam plastics
GB/T 10294 Determination of steady-state thermal resistance and related characteristics of thermal insulation materials
GB/T 10295 Determination of steady-state thermal resistance and related characteristics of thermal insulation materials
GB/T 10799 Determination of open and closed cell volume percentage of rigid foam
GB/T 17146 Test method for water vapor permeability of building materials and their products
GB/T 17393 Specification for thermal insulation materials covering austenitic stainless steel
GB/T 20673 Determination of linear expansion coefficient of rigid foam below ambient temperature
GB/T 32983 Determination of compression creep properties of thermal insulation products for construction
GB/T 34005 Test method for water vapor transmission performance of tubular insulation products
QB/T 5114 Determination of residual blowing agent in rigid polyurethane foam
3 Terms and definitions
The terms and definitions defined in GB/T 4132 apply to this document.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 2406.2Plastics -- Determination of burning behaviour by oxygen index -- Part 2: Ambient-temperature test
- GB/T 2918-2018Plastics -- Standard atmospheres for conditioning and testing
- GB/T 4132Thermal insulation - Vocabulary
- GB/T 5480Test methods for mineral wool and its products
- GB/T 5486Test methods for inorganic rigid thermal insulation products
Similar standards
Editions of GB/T 25997
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 25997-2020 | Polyisocyanurate (PIR) products for thermal insulation | current edition | Current |
| GB/T 25997-2010 | Polyisocyanurate products for thermal insulation | previous edition | Superseded |
This page sells the current edition, GB/T 25997-2020. Earlier editions are listed for reference only.
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Related Standards
GB 8624-2012 — Classification for burning behavior of building materials and products
GB/T 10294-2008 — Thermal insulation -- Determination of steady-state thermal resistance and related properties -- Guarded hot plate apparatus
GB/T 10295-2008 — Thermal insulation -- Determination of steady-state thermal resistance and related properties -- Heat flow meter apparatus
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