2014年2月26日星期三

plastic containers

For the transport of goods for export packaging plastic containers , according to SN/T0271-93 " inspection of export commodities transport packaging plastic containers " provides test and reference GB/T13508-92 " polyethylene blow barrel" execution. ( 1 ) Appearance: Barrel symmetrical parts of the wall thickness ratio not greater than 2:1 , no blisters, no adverse plasticizers , wall , flat and smooth mouthpiece , the bubble diameter of not more than 2mm of more than two , black spots impurities length greater than 4mm, bucket mouth piece coincides closely interchangeability . ( 2 ) Performance test: open plastic containers must be vertical impact drop test , stacking test , seal test . Closed plastic containers must be vertical impact drop test , stacking test , tightness test , hydraulic test . Mounted handle and integral handle plastic containers hanging test needs to be done . ① vertical impact drop test : The specimen at -18 ℃ conditions. Drop height : If the water as an alternative to the proposed density is not greater than 1.2 installed product is 0.8m; intends to install the product density greater than 1.2, the drop height was 0.67m × density. Drop parts See SN/T0271 " inspection of export commodities transport packaging plastic containers ." ② Stacking test : Test temperature 40 ℃, stacking time seven days .