Quality Control Standards
1. ISO 28723 — Enamels and Glazes — Determination of Edge Coverage for Enamelled Steel Sheets Used in Heat Exchangers
2. ISO 8289—Low-Voltage Testing Standard for Detecting and Locating Defects in Enamels and Porcelain Glazes
3. ISO 28706-2—Standard for Testing the Chemical Corrosion Resistance of Enamels and Porcelain Glazes
4. ISO 4534—Standard for the Determination of High-Temperature Fluidity of Glazes and Enamels: Fusion Flow Test
5. ISO 4532—Standard for the Determination of Resistance of Glazes and Enamels
6. ISO 6370—Standard for the Determination of Abrasion Resistance of Glazed Ceramics and Enamels
7. ISO 28763—Specification for rolling, coating, and packaging of heat-transfer elements for enamel and porcelain-enameled air-to-flue gas and flue gas-to-flue gas heat exchangers
8. EN14430:2004 Standard for High-Pressure Testing of Glazed Ceramics and Enamels
9. ISO9001:2008 Quality Management System Standard
10. GB/T9989-2005 Standard for Testing the Resistance of Enamel to Citric Acid Erosion at Room Temperature
11. GB/T13790—Cold-rolled low-carbon steel sheets and strips for enamel (EN10209)
12. GB/T709-2006—Dimensions, Shape, Weight and Permissible Deviations for Hot-Rolled Steel Plates and Strips (ISO 7452)
13. GB/T4171-2008 Delivery Standard for Weathering Structural Steel (Corten Steel) (EN10025-5)
14. GB/T5213-2008 Cold-rolled low-carbon steel sheet (SPPC) and steel strip (EN10130)
15. GB/8110-2008 Standard for Carbon Steel and Low-Alloy Steel Welding Wires for Gas-Shielded Arc Welding (AWS A5.18M:2005)
16. GB/T25777-2010—Method for Preparation of Chemical Analysis Samples of Weld Metal Deposits (ISO 6847)
17. GB/T25776-2010—Method for Assessment of Welding Process Performance of Welding Materials
18. GB/T25775-2010 Technical Specifications for Supply of Welding Materials—Product Types, Dimensions, Tolerances and Marking (ISO 544:2003)
19. GB/T11419-2008 Standard for Determination of Resistance to Rapid Temperature Changes
20. GB11418-89 Standard for Testing the Heat Resistance of Enamel
21. GB/T29515-2013 Standard for Testing the Susceptibility of Cold-Rolled Sheets Used in Enamel to Flaking and Blistering
22. GB/T 21509-2008 Standard for Equipment of Denitrification Technology for Coal-Fired Flue Gas
23. DL/T748.8-2001 Guidelines for Maintenance of Boiler Units in Thermal Power Plants (Air Preheater)
24. JB/T10990-2010 Standard for Rotary Flue Gas Heat Exchangers—Special Equipment for Wet Flue Gas Desulfurization Systems
25. DL/T769-2012 Technical Assessment Standards for Welders in the Electric Power Industry
26. Company’s Production Management Manual, Operating Procedures Manual, ABC Management Manual, and Production Process Manual
27. Company inspection and testing manual, procedure documents, quality manual, and third-level documents
Address
No. 5, Yuanqu Road, Northern Industrial Park, Hengshui City, Hebei Province
Business license
Website:300.cn
Website:300.CN SEO Privacy Policy