T/TJWL 005-2022 Cold chain uses thermoplastic polyurethane (TPU) ice board

Scope

Main technical content: 5 Technical Requirements 5.1 Raw Materials 5.2 Appearance 5.2.1 The outer surface of the TPU ice plates used in cold chains should be clean and tidy, free from damage or dirt, and without leakage. The sealing should be tight. 5.2.2 Under normal temperature conditions, the interior of the TPU ice plates used in cold chains should be a clear liquid. 5.2.3 Under cryogenic conditions, the TPU ice plates used in cold chains should be in a solid state. 5.2.4 Under insulation conditions, the TPU ice plates used in cold chains should be in an icy slush state. 5.2.5 Under freshness and heat preservation conditions, the interior of the TPU ice plates used in cold chains should be in a liquid state. 5.3 Color 5.4 Dimensions and Tolerances 5.5 Coolant Content 5.6 Phase Change Temperature 5.7 Physical and Chemical Properties 5.8 Food Safety and Hygiene Indicators 5.8.1 The coolant in the product should comply with the provisions of T/TJWL 004-2018, Section 5.2. 5.8.2 The total migration of the TPU substrate should not exceed 10mg/dm3, and the specific migration should not exceed 60mg/kg.

Development Information

Related Standards