Meteorological balloons. Specification Ingestion-build-266356 Why should you use PD

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Meteorological balloons. Specification Ingestion-build-266356 Why should you use PD1 Scope This document specifies the minimum requirements and test methods for meteorological balloons made from natural rubber latex or natural rubber latex compounded with synthetic rubber emulsion. This document applies to two types of balloon: Type 1: meteorological balloon produced by dipping process; Type 2: meteorological balloon produced by moulding process.