Conditions for blood donation: Age minimum 17 years. At this age, body development has been perfect. Thus, donating blood does not interfere with the working system of the body. Weight at least 45 kg. Less than that, the reduction of blood is feared will disrupt the balance of the body's work system. Normal body temperature, between 36.6 - 37.5 degrees Celsius. Normal blood pressure, ie sistole 110 - 160 mmHg, diastole 70 - 100 mmHg.Denyut regular pulse, which is about 50 - 100 times / menit.Haemoglobin women at least 12 grams%, men at least 13 grams% .For blood donor frequency maximum 5 times a year, or spaced at least 3 months.