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| Chinese National Standard Category: Metal processing property test method |
| English Title: | Thermal sprayed metallic coatings; Rockwell hardness test |
| Chinese Title: | 金属热喷涂层表面洛氏硬度试验方法 |
| Standard No.: | GB/T 8640-1988 |
| Category No.: | H23 |
| Issued by: | SAC |
| Issued on: | 1988-02-08 |
| Implemented on: | 1989-1-1 |
| Status: | superseded |
| Superseded by: | YS/T 541-2006 Thermal sprayed metallic coatings - Rockwell hardness test |
| Superseded on: | 2006-10-11 |
| Abolished on: | |
| Superseding: | |
| Word Count: | 3000 words |
| Similar Standards: | GB/T 15615-1995 GB 7733-1987 GB 3246-1982 GB/T 239.1-2023 GB/T 239.2-2023 GB/T 17473.7-2022 GB/T 24524-2021 GB/T 24183-2021 GB/T 2976-2020 GB/T 244-2020 GB/T 4156-2020 GB/T 25048-2019 GB/T 34477-2017 GB/T 246-2017 GB/T 32976-2016 GB/T 245-2016 GB/T 235-2013 GB/T 238-2013 YS/T 799-2012 GB/T 239.2-2012 |
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