ISO 4314 SURFACE ACTIVE AGENTS — DETERMINATION OF FREE ALKALINITY OR FREE ACIDITY — TITRIMETRIC METHOD
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Rwanda Standards
RS ISO 16358-3: 2013 AIR-COOLED AIR CONDITIONERS AND AIR-TO-AIR HEAT PUMPS — TESTING AND CALCULATING METHODS FOR SEASONAL PERFORMANCE FACTORS — PART 3: ANNUAL PERFORMANCE FACTOR