An American Society for Testing and Materials (ASTM) label.

美国检测与材料协会(ASTM)的标签。

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Globally, the nonprofit group ASTM International (formerly the American Society for Testing and Materials) sets voluntary safety standards for the industry regarding design, manufacturing, maintenance and operations.

BBC: The human limits of roller coasters

According to a guide for Sensory Evaluation of Products by Children published by the American Society for Testing and Materials kids as young as 3 are definitely able to discriminate between what they like and dislike.

FORBES: How Food Companies Carry Out Sensory Consumer Research On Kids And Babies