| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF | 
			| JC/T 428-2007 | English | 439 | Add to Cart | 3 days [Need to translate] | The methods for the measurement and calculation of heat balance, heat efficiency of tunnel kiln | Obsolete | JC/T 428-2007 | 
			| JC/T 428-1991 | English | RFQ | ASK | 9 days [Need to translate] | (Industrial brick tunnel kiln heat balance, thermal efficiency measurement and calculation method) | Obsolete | JC/T 428-1991 |