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A shade sail − or somewhat more precise a textile sunshade sail or a textile sun protection sail − is a device to create outdoor shade based on the textile basic technology that can be found in a ship's sail. [1] Shade sails use a flexible membrane tensioned between several anchor points. While generally installed permanently, they are ...
ASTM D 6544 specifies simulating the life cycle of a fabric so that a UPF test can be done near the end of the fabric's life, when it typically provides the least UV protection. ASTM D 6603 is a consumer format recommended for visible hangtag and care labeling of sun protective clothing and textiles.
R. Sayre was the lead researcher of in vitro SPF testing for traditional summer fabrics. [quantify] This revealed that traditional summer clothing in North America offered less than 15 SPF protection, the minimum level recommended by doctors. These traditional summer fabrics tested between SPF 5–9 when dry and SPF 3–9 when wet. [9]
Sunscreen, also known as sunblock, [a] sun lotion or sun cream, is a photoprotective topical product for the skin that helps protect against sunburn and prevent skin cancer. Sunscreens come as lotions, sprays, gels, foams (such as an expanded foam lotion or whipped lotion [4]), sticks, powders and other topical products.
Political lawn signs in Sioux City, Iowa ahead of the 2018 United States elections. Lawn signs (also known as yard signs, bandit signs [1] and placards, [2] among other names) are small advertising signs that can be placed on a street-facing lawn or elsewhere on a property [3] to express the support for an election candidate, or political position, [4] by the property owner (or sometimes to ...
Some of the earliest signs were used informally to denote the membership of specific groups. Early Christians used the sign or a cross or the Ichthys (i.e. fish) to denote their religious affiliations, whereas the sign of the sun or the moon would serve the same purpose for pagans. [7] The use of commercial signage has a very ancient history.
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