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燃气车主注意！新版强制国标发布：车用天然气甲烷值不得低于65_我的网站

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一 | 8月25日消息，近日，市场监管总局（国家标准委）批准发布《车用压缩天然气》（GB 18047-2026）强制性国家标准，将自2027年8月1日起实施。

二 |

Photo: VCG
China's cybersecurity authority unveiled cases involving the fabrication and online spread of flood and disaster-related rumors on Monday. The cases included netizens fabricating misinformation using AI to garner attention, even extending to creating doctored official government advisories, China Central Television (CCTV) News reported.
A total of 15 typical cases were made public by the cyberspace authority under China's Ministry of Public Security, as part of a continued drive against illegal activities involving the creation and spread of disaster-related false information that disrupt social order.
Several of these rumors were crafted with AI tools. For instance, a 37-year-old male netizen based in Shenzhen, South China's Guangdong Province, doctored local official typhoon safety notices using AI, posting the manipulated versions on social media to garner views. The false posts drew widespread public discussion and impacted disaster relief operations.
A netizen surnamed Yang from Qingyuan, Guangdong Province, used AI to create false notices claiming local school closures, work and business shutdowns amid flooding, disseminating them via WeChat.
Two other netizens similarly utilized AI tools to generate and circulate similar instances of disinformation using Douyin, alleging that in one case a food-delivery courier was still required to complete 10 deliveries during the typhoon and was seen clinging to a utility pole as strong winds swept him off the ground.
All individuals implicated in these publicly disclosed cases have been subject to administrative penalties by local public security authorities in accordance with the law, CCTV reported
In addition, some netizens fabricated false information from scratch. For instance, one netizen invented a story claiming that a flash flood had killed over 100 people and that rescue efforts had failed, purely to gain online traction.
Others resorted to deceptive editing techniques, including one individual who clipped and spliced together footage downloaded from the internet that had no connection to the typhoon, falsely presenting it as "a person trapped on a tower crane during the typhoon" and posting it on social media.
These netizens have been issued administrative penalties by local public security authorities according to law.
Global Times
。新标准替代现行GB 18047-2017版本，旨在提升产品质量、保障使用安全、促进贸易公平。甲烷值是衡量天然气抗爆性能的指标，类似于汽油的辛烷值。

三 | 甲烷值越低，发动机爆震的可能性越高，长期使用低甲烷值天然气会损害发动机寿命并影响动力输出。

四 | 新标准首次将甲烷值纳入强制性技术指标，明确车用压缩天然气的甲烷值应不小于65，与欧洲标准要求保持一致。 同时规定，当甲烷值小于70时，加气站须在经营场所显著位置向社会公示具体数值，让车主知情选择。

五 | 新标准还新增了互换性要求，同一地区的车用压缩天然气应能互换使用，确保不同气源的天然气在切换使用时不影响发动机性能和安全性。这意味着车主在不同加气站加气时，不必担心气源差异导致车辆运行异常。试验方法方面，新标准新增或调整了高位发热量、总硫、硫化氢、二氧化碳、氧气、水露点、水含量等项目的检测方法。