IS 8506 : 1977 Laboratory electric resistance furnaces

1 Scope

1.1 This standard applies to general purpose alternating currentlaboratory electrical resistance furnaces which are not designedfor heating any specific types of load, which have rating up to 8kW and maximum temperature not exceeding 1 250 �Cand which have static atmosphere of air. The standard will apply tofurnances of the above description having box or tube form,horizontal or vertical, and with exposed or concealed elements.

2 References

IS 2 : 1960Rules for rounding off numerical values

IS 302 : 1973 General and safety requirements forhousehold and similarelectrical appliances