This standard specifies the safety requirements for the products and use of buried scraper conveyors used in ports. This standard applies to buried scraper conveyors arranged horizontally, vertically or inclined to convey small pieces of loose materials.
GB/T 13561.4-1992 history
2009GB/T 13561.3-2009 Safety rules on port's continuous handling facilities.Part 3:Belt conveyers,mass conveyer and bucket elevator
1992GB/T 13561.4-1992 Safety rules on port's continuous handling facilities.Mass conveyers
GB/T 13561.4-1992 Safety rules on port's continuous handling facilities.Mass conveyers was changed to GB/T 13561.3-2009 Safety rules on port's continuous handling facilities.Part 3:Belt conveyers,mass conveyer and bucket elevator.