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Chinese National Standard Category: Casting |
English Title: | Test method for effective bentonite and effective seacoal aontent in green molding sand |
Chinese Title: | 铸造用湿型砂有效膨润土及有效煤粉 试验方法 |
Standard No.: | JB/T 9221-1999 |
Category No.: | J31 |
Issued by: | |
Issued on: | 1999-6-24 |
Implemented on: | 2000-6-24 |
Status: | superseded |
Superseded by: | JB/T 9221-2017 Test method for effective bentonite and effective seacoal content in green molding sand |
Superseded on: | 2017-10-1 |
Abolished on: | |
Superseding: | ZB/T J31011-1990 |
Word Count: | 3000 words |
Similar Standards: | GB 4987-1985 T/CPUMT 005-2022 GB/T 43139-2023 GB/T 15116-2023 GB/T 7233.2-2023 GB/T 43409-2023 GB/T 43415-2023 GB/T 7233.1-2023 GB/T 24733-2023 GB/T 9439-2023 GB/T 7216-2023 GB/T 26656-2023 GB/T 41972-2022 GB/T 41162-2022 GB/T 41160-2022 GB/T 26655-2022 GB/T 17445-2022 GB/T 25747-2022 GB/T 9441-2021 GB/T 40809-2021 |
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