Meaning of SPF | Babel Free

Definitions

1. Initialism of sun protection factor.
   abbreviation, alt-of, countable, initialism, uncountable
2. Initialism of Scottish Police Federation.
   abbreviation, alt-of, initialism
3. Initialism of single point of failure.
   abbreviation, alt-of, countable, initialism, uncountable
4. Initialism of Sender Policy Framework.
   Internet, abbreviation, alt-of, initialism
5. Initialism of spray polyurethane foam.
   abbreviation, alt-of, countable, initialism, uncountable
6. Initialism of spruce-pine-fir, mixed softwood timber.
   abbreviation, alt-of, countable, initialism, uncountable

Equivalents

Examples

“For the rest⟳ of us, each day’s variable solar conditions require⟳ a judgment call⟳. And probably sunscreen, whose SPF (sun protection factor) numbers reveal⟳ how effective the product is. A lotion with an SPF of 10, for example, tells us that if current conditions would give⟳ you a burn in one hour, the sunscreen will forestall the burn for ten hours. Most sunscreens use⟳ either titanium dioxide or zinc oxide, chemicals that reflect⟳, scatter⟳, or absorb ultraviolet light⟳ and dissipate it as heat. In practice, creams labeled SPF 30 provide⟳ 96 percent of the protection of an SPF 90 product, which suggests that you’ll do fine with a 30 as long as you keep⟳ reapplying it as needed during the day.”

“Most dermatologists, as well as the American Academy of Dermatology, recommend⟳ an SPF of at least 30 for most people and most climates.”

CEFR level