標(biāo)準(zhǔn)解讀

GB/T 44329-2024 是一項關(guān)于混合氣體制備的國家標(biāo)準(zhǔn)，具體聚焦于采用稱量法進(jìn)行混合氣體的配制過程。該標(biāo)準(zhǔn)旨在為氣體混合物的準(zhǔn)確制備提供統(tǒng)一的技術(shù)指導(dǎo)和要求，確保不同行業(yè)在使用或生產(chǎn)混合氣體時有共同遵循的規(guī)范，以達(dá)到質(zhì)量控制和安全使用的目地。以下是該標(biāo)準(zhǔn)的關(guān)鍵內(nèi)容概述：

標(biāo)準(zhǔn)適用范圍

本標(biāo)準(zhǔn)適用于通過精確稱量各組成氣體的質(zhì)量，隨后將這些氣體混合以得到預(yù)定濃度比的混合氣體。這包括但不限于實驗室研究、工業(yè)生產(chǎn)、環(huán)境監(jiān)測及醫(yī)療等領(lǐng)域中對特定混合氣體的需求。

基本原則

  • 精準(zhǔn)稱量：強(qiáng)調(diào)使用高精度天平對每種純氣體進(jìn)行單獨稱量，確?；旌蠚怏w成分的準(zhǔn)確性。
  • 氣體純度：規(guī)定了用于混合的氣體純度要求，以避免雜質(zhì)對最終混合氣體性能的影響。
  • 混合容器：說明了用于混合氣體的容器材質(zhì)、清潔度及密封性的要求，確保不會與氣體發(fā)生反應(yīng)或污染氣體。
  • 混合程序：詳細(xì)描述了氣體的充裝順序、充裝速率、以及混合后的均勻化處理步驟，以實現(xiàn)混合氣體組分的均勻分布。
  • 分析驗證：要求對制備完成的混合氣體進(jìn)行濃度分析，常用方法包括氣相色譜分析等，確保成品符合預(yù)期的濃度比例。
  • 安全操作：涵蓋了混合氣體制備過程中應(yīng)遵守的安全措施，包括但不限于操作人員防護(hù)、氣體泄漏檢測及應(yīng)急處置方案。

質(zhì)量控制

標(biāo)準(zhǔn)中還包括了對混合氣體制備過程中的質(zhì)量控制要點，如記錄保存、設(shè)備校準(zhǔn)、環(huán)境條件控制等，以保證每次制備的一致性和可追溯性。

標(biāo)識與儲存

對混合氣體容器的標(biāo)識方法進(jìn)行了規(guī)定，要求明確標(biāo)注氣體種類、濃度、制備日期、有效期等信息，并提供了混合氣體的儲存條件和注意事項，確保氣體的穩(wěn)定性和安全性。

實施與監(jiān)督

標(biāo)準(zhǔn)還涉及了實施該方法的機(jī)構(gòu)或個人應(yīng)遵循的監(jiān)督和審核機(jī)制，確保標(biāo)準(zhǔn)執(zhí)行的有效性和合規(guī)性。


如需獲取更多詳盡信息，請直接參考下方經(jīng)官方授權(quán)發(fā)布的權(quán)威標(biāo)準(zhǔn)文檔。

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文檔簡介

ICS

71.100.20

CCS

G86

中華人民共和國國家標(biāo)準(zhǔn)

GB/T44329—2024

混合氣體的制備稱量法

Preparationofgasmixtures—Gravimetricmethod

2024-08-23發(fā)布2025-03-01實施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會

GB/T44329—2024

目次

前言

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Ⅲ

1

范圍

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1

2

規(guī)范性引用文件

······················································································

1

3

術(shù)語和定義

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1

4

制備方法

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2

5

制備流程

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2

6

制備前的準(zhǔn)備

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4

6.1

制備的可行性分析

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4

6.2

充裝系統(tǒng)的準(zhǔn)備

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4

6.3

包裝容器及其閥門的準(zhǔn)備

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4

6.4

原料氣的準(zhǔn)備

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4

6.5

尾氣處理

·························································································

4

6.6

充裝量的計算

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4

6.7

充裝系統(tǒng)的初次驗證

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5

7

混合氣體的充裝

······················································································

5

7.1

充裝步驟

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5

7.2

充裝控制

·························································································

5

8

組分制備含量的計算

·················································································

6

9

制備的驗證

···························································································

6

9.1

驗證方法

·························································································

6

9.2

混合氣體組分含量的測定

········································································

6

9.3

制備相對偏差的計算

·············································································

6

9.4

驗證結(jié)論

·························································································

6

10

合格證

·······························································································

7

11

稱量法制備混合氣體的實例

·········································································

7

附錄A（資料性）

稱量法制備混合氣體的實例

·······················································

8

A.1

制備目標(biāo)

························································································

8

A.2

制備前準(zhǔn)備

······················································································

8

A.3

混合氣體的充裝

·················································································

9

A.4

組分制備含量的計算

············································································

9

A.5

制備的驗證

······················································································

9

A.6

合格證

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9

參考文獻(xiàn)

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10

Ⅰ

GB/T44329—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由中國石油和化學(xué)工業(yè)聯(lián)合會提出。

本文件由全國氣體標(biāo)準(zhǔn)化技術(shù)委員會（SAC/TC206）歸口。

本文件起草單位：杭州新世紀(jì)混合氣體有限公司、大連大特氣體有限公司、昊華氣體有限公司西南

分公司、北京氦普北分氣體工業(yè)有限公司、武漢鋼鐵集團(tuán)氣體有限責(zé)任公司、捷貝通石油技術(shù)集團(tuán)股份

有限公司、佛山三水德力梅塞爾氣體有限公司、中國測試技術(shù)研究院化學(xué)研究所、衢州杭氧特種氣體有

限公司、西南化工研究設(shè)計院有限公司、浙江省化工研究院有限公司、浙江省特種設(shè)備科學(xué)研究院、

浙江省生態(tài)環(huán)境低碳發(fā)展中心、大連科瑞氣體有限公司、大連隆源氣體科技股份有限公司、英德市西洲

氣體有限公司。

本文件主要起草人：張金波、李福芬、蔣宏達(dá)、曾斌、周海斌、葉水生、周鑫、趙俊秀、齊利兵、

毛玲玲、史婉君、陳雅麗、任艷紅、賴曉峰、唐霞梅、程欣、盧長敏、崔雪嬌、王輔程、唐正明。

Ⅲ

GB/T44329—2024

混合氣體的制備稱量法

1范圍

本文件描述了用稱量法制備混合氣體的方法和流程，規(guī)定了對制備前的準(zhǔn)備、混合氣體的充裝、組

分制備含量的計算、制備的驗證以及合格證的要求，給出了制備實例。

本文件適用于瓶裝及氣瓶集束裝置包裝的混合氣體的制備。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)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(yīng)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。

GB/T14850氣體分析詞匯

GB/T34526混合氣體氣瓶充裝規(guī)定

GB/T34528氣瓶集束裝置充裝規(guī)定

GB/T38523混合氣

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