Some exudate condoms tend to be lubricated at the maker with a small amount of a nonoxynol-9, a spermicidal chemical. In accordance with customers states, spermicidally lubricated condoms have no extra benefit in stopping pregnancy, has a shorter shelf-life, and might result urinary-tract bacterial infections in females. [8] compared, application of separately packaged spermicide is believed to improve the contraceptive efficacy of condoms. [2]
Nonoxynol-9 used to be considered to provide added cover against STDs (such as HIV) but previous research indicates that, with frequent need, nonoxynol-9 may increase the likelihood of HIV transmission. [9] globally wellness company claims that spermicidally lubricated condoms should no longer end up being marketed. However, they recommend making use of a nonoxynol-9 lubricated condom over no condom anyway. [10] Since 2005, nine condom brands have actually stopped manufacturing condoms with nonoxynol-9, organized Parenthood have concluded the distribution of condoms thus lubricated, [11] therefore the as well as medication government provides recommended a warning relating to this issue. [12]
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Latex enjoys outstanding flexible characteristics. Tensile strength goes beyond 30 MPa. Condoms may be extended in excess of 800per cent before splitting. [13]
In 1990 http://datingranking.net/pl/anastasiadate-recenzja/ the ISO ready standards for production (ISO 4074, Natural latex rubberized condoms) plus the EU used suit featuring its CEN criterion (Directive 93/42/EEC concerning healthcare devices).