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Chinese Standard: GB/T 41965-2022

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Photography—Processing waste—Determination of total amino nitrogen(microdiffusion Kjeldahl method)


Standard in brief
Scope of Application:  
本文件描述了一种用凯氏氮法测定摄影冲洗废液中总有机氮和任何氨态氮含量的方法。本方法能测定摄影冲洗废液中的总凯氏氮,以氨计浓度范围为10 mg/L~200 mg/L,或以氮计浓度范围为 8 mg/L~160 mg/L。如果单独测定并减去氨态氮(见ISO 6853),就能确定有机氨基氮的浓度。

Basic information
Standard No:GB/T 41965-2022
Standard Name:摄影 冲洗废液 氨态氮总含量的测定(微扩散凯氏氮法)
English Name:Photography—Processing waste—Determination of total amino nitrogen(microdiffusion Kjeldahl method)
Standard Status:现行
Release Date:2022-12-30
Effective Date:2023-07-01
Language of Publication:中文简体

Standard Classification
ICS Number:37.040.30;13.030.30
CCS Number:G84

Related Standards
Referenced Standards:ISO 648,ISO 1042,ISO 5667-1,ISO 5667-2,ISO 5667-3,ISO 6353-1,ISO 6353-2,ISO 6353-3,ISO 10349-1
Adopted Standards:ISO 6851:2001
Adopted Standard Name:《摄影 冲洗废液 氨态氮总含量的测定(微扩散凯氏氮法)》
Adoption Level:IDT

Publication Information
Number of pages:16
Number of words:32 K
Format:大16
Edition:1
Color Pages:0
Electronic Version:Yes
Color Images:No
Print Publication Date:2022-12-01

Standard Revision Information
Has Amendment:No

Other Information
Application Dept:国家市场监督管理总局、国家标准化管理委员会
Standard Type:CN
Standard Attribute:GB
Other Standard Number:41965
Drafter:吴满旗、王建龙、杨赛、张健、王大庆、赵燕燕、宿静波、雒盛林、孙飞、周志敏、刘秀芬、王军、霍菲菲
Drafting Organization:保定乐凯影像材料科技有限公司、乐凯胶片股份有限公司
Management Organization:全国感光材料标准化技术委员会(SAC/TC 102)
Proposing Department:中国石油和化学工业联合会

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