The frequency with which working solutions of bleach should be changed depends on their starting strength, the type(e.g. with or without a lid) and size of their containers the frequency and nature of use, and ambient condition As a general guide, solutions receiving materials with high levels of organic matter several times a day should be changed at least daily, while those with less frequent use may last for as long as a week
The frequency with which working solutions of bleach should be changed depends on their starting strength, the type (e.g. with or without a lid) and size of their containers, the frequency and nature of use, and ambient conditions. As a general guide, solutions receiving materials with high levels of organic matter several times a day should be changed at least daily, while those with less frequent use may last for as long as a week
A general all-purpose laboratory disinfectant should have a concentration of 1 g/l available chlorine. A stronger solution, containing 5 g/ available chlorine, is recommended for dealing with biohazardous spillage and in the presence of large amounts of organic matter. Sodium hypochlorite solutions, as domestic bleach, contain 50 g/ available chlorine and should therefore be diluted 1: 50 or 1: 10 to obtain final concentrations of 1 g/ and 5 g/ respectively. Industrial solutions of bleach have a sodium hypochlorite concentration of nearly 120 g/ and must be diluted accordingly to obtain the levels indicated above
A general all-purpose laboratory disinfectant should have a concentration of 1 g/l available chlorine. A stronger solution, containing 5 g/l available chlorine, is recommended for dealing with biohazardous spillage and in the presence of large amounts of organic matter. Sodium hypochlorite solutions, as domestic bleach, contain 50 g/l available chlorine and should therefore be diluted 1:50 or 1:10 to obtain final concentrations of 1 g/l and 5 g/l, respectively. Industrial solutions of bleach have a sodium hypochlorite concentration of nearly 120 g/l and must be diluted accordingly to obtain the levels indicated above
Granules or tablets of calcium hypochlorite(Ca(cIo)2) generally contain about 70% available chlorine Solutions prepared with granules or tablets, containing 1. 4g/ and 7.0 g/, will then contain 1.0 g/ and 5 g/ available chlorine respectively
Granules or tablets of calcium hypochlorite (Ca(ClO)2 ) generally contain about 70% available chlorine. Solutions prepared with granules or tablets, containing 1.4 g/l and 7.0 g/l, will then contain 1.0 g/l and 5 g/l available chlorine, respectively
Bleach is not recommended as an antiseptic, but may be used as a general-purpose disinfectant and for soaking contaminated metal-free materials In emergencies bleach can also be used to disinfect water for drinking, with a final concentration of 1-2 mg/ available chlorine
Bleach is not recommended as an antiseptic, but may be used as a general-purpose disinfectant and for soaking contaminated metal-free materials. In emergencies, bleach can also be used to disinfect water for drinking, with a final concentration of 1–2 mg/l available chlorine
Chlorine gas is highly toxic. Bleach must therefore be stored and used in well-ventilated areas only. also, bleach must not be mixed with acids to prevent the rapid release of chlorine gas Many by-products of chlorine can be harmful to humans and the environment. so that indiscriminate use of chlorine-based disinfectants, in particular bleach, should be avoided
Chlorine gas is highly toxic. Bleach must therefore be stored and used in well-ventilated areas only. Also, bleach must not be mixed with acids to prevent the rapid release of chlorine gas. Many by-products of chlorine can be harmful to humans and the environment, so that indiscriminate use of chlorine-based disinfectants, in particular bleach, should be avoided