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Chinese National Standard Category: Non-metal chemical machinery equipment |
English Title: | Test method of viterous and porcelain enamels--Part 7: Determination of coefficient of mean lincar thermal expansion |
Chinese Title: | 搪玻璃层试验方法 第7部分:平均线热膨胀系数的测定 |
Standard No.: | GB/T 7991.7-2019 |
Category No.: | G94 |
Issued by: | SAMR, SAC |
Issued on: | 2019-12-10 |
Implemented on: | 2020-11-1 |
Status: | to be valid |
Superseded by: | |
Superseded on: | |
Abolished on: | |
Superseding: | GB/T 25144-2010 Determination of coefficient of mean linear thermal expansion for vitreous and porcelain enamels |
Word Count: | 5000 words |
Similar Standards: | HG/T 2048-1991 HG/T 2055-1991 HG/T 2058-1991 HG/T 2105-2006 HG/T 2145-1991 HG/T 2142-1991 HG/T 2051-1991 HG/T 2055.1-1991 GB/T 13465.12-2023 GB/T 41312.2-2023 GB/T 41312.3-2023 GB/T 7994.3-2022 GB/T 41312.1-2022 GB/T 7991.3-2021 GB/T 7991.1-2021 GB/T 7996-2020 GB/T 23711.4-2019 GB/T 23711.7-2019 GB/T 7991.7-2019 GB/T 18749-2019 |
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