2. Mass: symbol (kg). Read as Kilo Gram. It is small k and small g. Writing 25 kg or 25 Kilo Gram is correct. The use of 10 KG or10 KGM or 10 KGS is not correct.
3. Length: symbol (m). It is small m. Writing 20 m or 20 Metres is correct. Note the spellings Metre is for measurement of length and meter is used for some indicating devices. Writing 20 Mtrs. or 20 Mt. or MTRs is not correct.
4. Temperature: symbol (K). Read as Kelvin. It is capital K. Kelvin is a base unit. Temperature’s popular conventional units for daily use are Degree Celsius and Degree Fahrenheit. Writing a temperature of 340 K or 240 Kelvin is correct. 240 °C and 240 °F (small symbol of degree ‘°’ appeared before C and F but not a symbol of degree is used when presented the temperature in Kelvin).
