Sep 01, 2012 · January 1, 1996 - ASTM International. 1.1 These test methods cover the 24-h gas-space acetaldehyde (AA) content of freshly blown polyethylene terephthalate ( PET) bottles. 1.2 These test methods, containing internal or external standard calibration, are applicable to all PET bottles. 1.3 The values stated inApr 05, 2021 · Preform Quality When ites to quality assurance of PET bottles, one of the most important step is right in the beginning when the PET bottle is in the form of a preform. The preform are the base block for manufacturing a PET bottle and if the quality of the preforms is not good, there is no chance to get the quality of PET bottles right.Furthermore, they are environmentally benign and can be recycled multiple times, therefore lowering their manufacturing costs significantly. The global PET bottles market was valued at US$ 565.93 Bn in 2020 and is expected to reach US$ 781.90 Bn by 2028, exhibiting a CAGR of 3.87% during the forecast period ).easing proliferation of PET bottles, due to ease of use, less cost, and low material weight in different end-user applications, such as food, beverage, cosmetics, and pharmaceuticals, is driving the market for plastic bottles in the country. According to British Plastics Federation, 70% of soft drinks are packaged in PET plastic bottles.