{"product_id":"gb28381-2026","title":"GB 28381-2026 English PDF","description":"\u003ch1\u003eGB 28381-2026: Minimum allowable values of energy efficiency and energy efficiency grades for blowers\u003c\/h1\u003e\u003cb style=\"font-size:16px;\"\u003eDelivery:\u003c\/b\u003e 9 seconds. Download (and Email) true-PDF + Invoice.\u003cbr\u003e\u003cb style=\"font-size:16px;\"\u003eGet Quotation:\u003c\/b\u003e Click \u003ca style=\"color: blue;\" href=\"https:\/\/www.chinesestandard.net\/Cart\/Cart.aspx?GB%2028381-2026_English\" rel=\"nofollow\"\u003eGB 28381-2026\u003c\/a\u003e (Self-service in 1-minute)\u003cbr\u003e\u003cb style=\"font-size:16px;\"\u003eNewer \/ historical versions: \u003c\/b\u003e \u003ca style=\"color: blue;\" href=\"https:\/\/www.chinesestandard.net\/PDF.aspx\/GB28381-2026\"\u003eGB 28381-2026\u003c\/a\u003e\u003ch2\u003ePreview True-PDF\u003c\/h2\u003e\u003ciframe src=\"https:\/\/www.chinesestandard.net\/Preview_PDF.aspx\/GB28381-2026\" width=\"445\" height=\"600\" title=\"GB 28381-2026 True-PDF\"\u003e\u003c\/iframe\u003e \u003cbr\u003e\u003ch2\u003eScope\u003c\/h2\u003eThis document specifies the energy efficiency grades, technical requirements, and test \u003cbr\u003emethods for turbine blowers and positive displacement blowers. \u003cbr\u003eThis document applies to general-purpose turbine blowers for conveying air, with a \u003cbr\u003edischarge pressure (gauge pressure) of 30 kPa ~ 200 kPa, or an overall pressure ratio of \u003cbr\u003e1.3 ~ 3.0. \u003cbr\u003e-- mechanically supported centrifugal blowers with an inlet flow rate of 500 \u003cbr\u003em3\/h ~ 1 000 000 m3\/h; \u003cbr\u003e-- axial-flow blowers with an inlet flow rate of 60 000 m3\/h ~ 1 000 000 m3\/h; \u003cbr\u003e-- suspension centrifugal blowers with an inlet flow rate of 500 m3\/h ~ 400 000 \u003cbr\u003em3\/h. \u003cbr\u003eThis document applies to single-stage Roots blowers for conveying air, with an inlet \u003cbr\u003etemperature not higher than 45 °C and a standard volume flow of 1 m3\/min ~ 1 250 \u003cbr\u003em3\/min. \u003cbr\u003e-- positive-pressure Roots blowers with a pressure rise of 9.8 kPa ~ 98 kPa; \u003cbr\u003e-- negative-pressure Roots blowers with a pressure rise of 9.8 kPa ~ 49 kPa. \u003cbr\u003eThis document applies to screw blowers for conveying air, with a standard volume flow \u003cbr\u003eof 2 m3\/min ~ 200 m3\/min and a pressure rise of 39.2 kPa ~ 245 kPa. \u003cbr\u003e\u003cbr\u003e\u003ch2\u003eBasic Data\u003c\/h2\u003e\u003ctable id=\"TableTabAbout0\" rules=\"all\" border=\"1\" style=\"font-family:Arial;font-size:Small;\"\u003e  \u003ctr id=\"TableTabRow10\"\u003e     \u003ctd id=\"TableTabCell110\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eStandard ID\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell120\" align=\"center\"\u003e GB 28381-2026 (GB28381-2026)\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow20\"\u003e     \u003ctd id=\"TableTabCell210\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eDescription (Translated English)\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell220\" align=\"center\"\u003e Minimum allowable values of energy efficiency and energy efficiency grades for blowers\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow30\"\u003e     \u003ctd id=\"TableTabCell310\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eSector \/ Industry\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell320\" align=\"center\"\u003e National Standard\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow40\"\u003e     \u003ctd id=\"TableTabCell410\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eClassification of Chinese Standard\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell420\" align=\"center\"\u003e F01\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow50\"\u003e     \u003ctd id=\"TableTabCell510\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eClassification of International Standard\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell520\" align=\"center\"\u003e 27.010\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow60\"\u003e     \u003ctd id=\"TableTabCell610\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eWord Count Estimation\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell620\" align=\"center\"\u003e 54,560\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow70\"\u003e     \u003ctd id=\"TableTabCell710\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eDate of Issue\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell720\" align=\"center\"\u003e 2026-03-31\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow80\"\u003e     \u003ctd id=\"TableTabCell810\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eDate of Implementation\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell820\" align=\"center\"\u003e 2027-04-01\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow90\"\u003e     \u003ctd id=\"TableTabCell910\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eOlder Standard (superseded by this standard)\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell920\" align=\"center\"\u003e GB 28381-2012\u003c\/td\u003e  \u003c\/tr\u003e\n\u003ctr id=\"TableTabRow100\"\u003e     \u003ctd id=\"TableTabCell1010\" align=\"center\" font=\"bold\"\u003e \u003cb\u003eIssuing agency(ies)\u003c\/b\u003e \u003c\/td\u003e    \u003ctd id=\"TableTabCell1020\" align=\"center\"\u003e State Administration for Market Regulation, China National Standardization Administration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e","brand":"www.ChineseStandard.us -- Field Test Asia Pte. Ltd.","offers":[{"title":"Default Title","offer_id":54048268058938,"sku":null,"price":440.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0821\/5737\/1706\/files\/GB28381-2026EN.1.jpg?v=1789211806","url":"https:\/\/www.chinesestandard.us\/products\/gb28381-2026","provider":"www.ChineseStandard.us (www.ChineseStandard.net)","version":"1.0","type":"link"}