標(biāo)準(zhǔn)解讀
GB/T 44329-2024 是一項(xiàng)關(guān)于混合氣體制備的國(guó)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(guò)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(shí)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(guò)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(shí)驗(yàn)室研究、工業(yè)生產(chǎn)、環(huán)境監(jiān)測(cè)及醫(yī)療等領(lǐng)域中對(duì)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(duì)每種純氣體進(jìn)行單獨(dú)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(duì)最終混合氣體性能的影響。
- 混合容器：說(shuō)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(huì)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(shí)現(xiàn)混合氣體組分的均勻分布。
- 分析驗(yàn)證：要求對(duì)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(guò)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(cè)及應(yīng)急處置方案。
質(zhì)量控制
標(biāo)準(zhǔn)中還包括了對(duì)混合氣體制備過(guò)程中的質(zhì)量控制要點(diǎn)，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(shí)與儲(chǔ)存
對(duì)混合氣體容器的標(biāo)識(shí)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(chǔ)存條件和注意事項(xiàng)，確保氣體的穩(wěn)定性和安全性。
實(shí)施與監(jiān)督
標(biāo)準(zhǔn)還涉及了實(shí)施該方法的機(jī)構(gòu)或個(gè)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(qǐng)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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- 2024-08-23 頒布
- 2025-03-01 實(shí)施
文檔簡(jiǎn)介
ICS
71.100.20
CCS
G86
中華人民共和國(guó)國(guó)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(shí)施
國(guó)家市場(chǎng)監(jiān)督管理總局發(fā)布
國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)
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
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1
3
術(shù)語(yǔ)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(mén)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
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4
6.6
充裝量的計(jì)算
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4
6.7
充裝系統(tǒng)的初次驗(yàn)證
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5
7
混合氣體的充裝
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5
7.1
充裝步驟
·························································································
5
7.2
充裝控制
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5
8
組分制備含量的計(jì)算
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6
9
制備的驗(yàn)證
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6
9.1
驗(yàn)證方法
·························································································
6
9.2
混合氣體組分含量的測(cè)定
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6
9.3
制備相對(duì)偏差的計(jì)算
·············································································
6
9.4
驗(yàn)證結(jié)論
·························································································
6
10
合格證
·······························································································
7
11
稱量法制備混合氣體的實(shí)例
·········································································
7
附錄A（資料性）
稱量法制備混合氣體的實(shí)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(jì)算
············································································
9
A.5
制備的驗(yàn)證
······················································································
9
A.6
合格證
···························································································
9
參考文獻(xiàn)
································································································
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(qǐng)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(shí)別專利的責(zé)任。
本文件由中國(guó)石油和化學(xué)工業(yè)聯(lián)合會(huì)提出。
本文件由全國(guó)氣體標(biāo)準(zhǔn)化技術(shù)委員會(huì)（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(guó)測(cè)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(jì)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(zhǎng)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(duì)制備前的準(zhǔn)備、混合氣體的充裝、組
分制備含量的計(jì)算、制備的驗(yàn)證以及合格證的要求，給出了制備實(shí)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(guò)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(duì)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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