Camping Mattresses: R-value
ASTM F 3340 "Thermal Resistance of Camping Mattresses Using a Guarded Hot Plate Apparatus"
Guarded hot plate and cold plate in an environmental chamber; the camping mattress is held under constant compressive force between the plates
- $600 for consumer-facing claims (requires 3 full-size specimens of each sample type), or
- $465 for prototypes (results cannot be used for consumer-facing claims)