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Chinese National Standard Category: Inorganic acid and alkali |
English Title: | Determination for iron content in industrial hydrochloric acid - Phenanthroline spectrophotometric method |
Chinese Title: | 工业盐酸中铁含量的测定--邻菲罗啉分光光度法 |
Standard No.: | DL 422.3-1991 |
Category No.: | G11 |
Issued by: | NEA |
Issued on: | 1991-10-1 |
Implemented on: | 1992-4-1 |
Status: | abolished |
Superseded by: | DL/T 422-2015 Test Method for HCI Used in Fossil-fired Power Plant |
Superseded on: | 2015-12-1 |
Abolished on: | 2015-12-01 |
Superseding: | |
Word Count: | 2000 words |
Similar Standards: | T/CSAIA 001-2021 GB/T 7744-2008 T/JSSES 16-2021 GB 7744-1998 GB/T 40124-2021 GB/T 7746-2023 GB/T 1919-2023 GB/T 7744-2023 GB/T 41881-2022 GB/T 210-2022 T/CSAIA 002-2021 GB/T 209-2018 GB/T 538-2018 GB/T 23855-2018 T/ZGM 001-2017 GB/T 13549-2016 GB/T 7698-2014 GB/T 4348.2-2014 HG/T 4673-2014 GB/T 1919-2014 |
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