What standards should food-contact ceramic tableware meet?

Please verify the following points and require itemized written supplier responses:（ceramic tableware food contact standards） In China, food-contact ceramic tableware should meet the GB 4806 series, with ceramic products covered by GB 4806.4-2016, which specifies sensory requirements, lead and cadmium limits, migration test conditions and labeling. Apply limits according to flatware, storage jars, large or small hollowware, cups and cooking vessels. Define capacity, accuracy, materials and operating environment before requesting quotes on a uniform basis. Request specification sheets, test reports, certificates, maintenance manuals and spare-part lists. During acceptance, verify appearance, dimensions, functions, safety protection and packaging, and keep test records. Do not compare unit price alone; include customization, freight, spare parts, after-sales support and downtime risk. Keep written records of inquiries, confirmations, FAT, acceptance and warranty commitments.