ICS

91.120.10

CCS

Q25

中華人民共和國國家標準

GB/T30805—2024/ISO29767:2019

代替GB/T30805—2014

建筑用絕熱制品

部分浸入法測定

短期吸水量

Thermalinsulatingproductsforbuildingapplications—Determinationof

short-termwaterabsorptionbypartialimmersion

(ISO29767:2019,IDT)

2024-07-24發布2025-02-01實施

國家市場監督管理總局發布

國家標準化管理委員會

GB/T30805—2024/ISO29767:2019

目次

前言

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Ⅲ

1

范圍

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1

2

規范性引用文件

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1

3

術語和定義

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1

4

原理

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1

5

儀器

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1

6

試樣

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2

6.1

試樣尺寸

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2

6.2

試樣數量

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2

6.3

試樣制備

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3

6.4

狀態調節

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3

7

步驟

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3

7.1

測試條件

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3

7.2

測試步驟

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3

8

結果的計算與表達

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4

9

測試準確度

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4

10

測試報告

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5

參考文獻

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6

Ⅰ

GB/T30805—2024/ISO29767:2019

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規則》的規

定起草。

本文件代替GB/T30805—2014《建筑用絕熱制品部分浸入法測定短期吸水量》，與GB/T30805—2014

相比，除結構調整和編輯性改動外，主要技術變化如下：

a）增加了“自來水”中對熱帶地區的測試情況的描述（見5.3）；

b）增加了“狀態調節”中對熱帶地區試樣的調節要求的描述（見6.4）；

c）增加了“測試條件”中對熱帶地區的測試要求的描述（見7.1）；

d）更改了“測試步驟”中方法A及方法B中取出試樣的時間（見7.2.1、7.2.2,2014年版的6.2.1、

6.2.2）。

本文件等同采用ISO29767:2019《建筑用絕熱制品

部分浸入法測定短期吸水量》。

本文件做了下列最小限度的編輯性改動：

—更正了ISO29767:2019的印刷錯誤，將熱帶地區狀態調節使用（23±2）℃、（65±5）%相對

濕度的條件修改為使用（27±2）℃、（65±5）%相對濕度的條件。

請注意本文件的某些內容可能涉及專利。本文件的發布機構不承擔識別專利的責任。

本文件由中國建筑材料聯合會提出。

本文件由全國絕熱材料標準化技術委員會（SAC/TC191）歸口。

本文件起草單位：南京玻璃纖維研究設計院有限公司、安慶市宜能保溫材料有限責任公司、上海大

音希聲新型材料有限公司。

本文件主要起草人：蔣露、崔軍、張瑞、孟浩、王志淵、王志平、潘陽、張帥愷。

本文件于2014年首次發布，本次為第一次修訂。

Ⅲ

GB/T30805—2024/ISO29767:2019

建筑用絕熱制品

部分浸入法測定

短期吸水量

1范圍

本文件描述了部分浸入法測定樣品短期吸水量的儀器和步驟。

本文件適用于絕熱制品。

注：本文件規定的步驟是為了模擬施工期間24h的淋雨引起的吸水。

2規范性引用文件

下列文件中的內容通過文中的規范性引用而構成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文件。

ISO29768建筑用絕熱材料試樣線性尺寸的測定（Thermalinsulatingproductsforbuilding

applications—Determinationoflineardimensionsoftestspecimens）

3術語和定義

本文件沒有需要界定的術語和定義。

4原理

樣品下半部放置在水中，經過24h，測量其質量變化。

附著在表面但未被吸入樣品的多余水分用方法A（瀝干法）去除，或用方法B代入計算得出。

5儀器

5.1天平，測定樣品質量，精確至0.1g。

5.2水箱，控制水平面恒定在±2mm以內的裝置和保持試樣在所需位置的裝置。圖1給出了測試裝置

示例。保持試樣位置的裝置覆蓋水中的試樣面積應不大于試樣橫截面積