| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 23809.2-2020 | English | 339 |
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Days<=4
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Emergency guidance systems - Setting principles and requirements - Part 2: Outside buildings
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GB/T 23809.2-2020
| Valid |
GB/T 23809.2-2020
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