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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 40531.1-2021 |
Ships and marine technology—Specifications for gas detectors intended for use on board ships—Part 1:Portable gas detectors for atmosphere testing of enclosed spaces 船舶与海上技术 船用气体探测器规范 第1部分：围蔽处所的便携式气体探测器 |
China National Standards technology—Specifications |
 English PDF |
| GB/T 37027-2018 |
Information security technology—Specifications of definition and description for network attack 信息安全技术-网络攻击定义及描述规范 |
China National Standards technology—Specifications |
English PDF |
| GB/T 25056-2018 |
Information security technology—Specifications of cryptograph and related security technology for certificate authentication system 信息安全技术 证书认证系统密码及其相关安全技术规范 |
China National Standards technology—Specifications |
English PDF |
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