The percent difference between the gross refrigerator (ILRs and SDDs) volumes quoted in the PQS Catalogue and the net vaccine storage volume varies from 29.6% to 88.6 %. This is a wide variation for front opening fridges, due to space for air-circulation. Increasingly, new models of ILR and SDD are...

Newly-prequalified cold chain equipment is regularly added to the PQS Catalogue. To keep up-to-date with changes to the PQS Catalogue, you can now follow the PQS updates feed on Twitter: https://twitter.com/pqs_updates In addition to listing newly-prequalified equipment, the feed also highlights...

The data given for solar-powered refrigerators in the PQS sheets is not given consistently enough so that comparisons of various models can be made. The data needed for a fair comparison most often is energy consumption at 32 deg C without ice making, energy use with ice making and quantity of ic...

PQS Data I was recently trying to compare PQS data for direct drive refrigerators. Data for two parameters of prime importance are not always given: - Solar radiation reference period - Power consumption: Stable Running Data is also usually given for 43 deg C and sometimes for 32 deg C. D...