Determination of the boiling range of industrial volatile organic liquids (1)

Warning—This standard does not mention all safety issues related to the use of the standard

1 Scope

This standard specifies the method for determining the boiling range of volatile organic liquids

This standard applies to organic liquids (such as hydrocarbons, esters, alcohols, ketones, ethers and similar organic compounds) that have a boiling point of (30-300) ℃ under normal pressure and are chemically stable during distillation

2 Normative references

The clauses in the following documents have become clauses of this standard after being quoted in this standard

GB/T3723 General rules for the safety of sampling of industrial chemical products (GB/T3723-1999, idt ISO 3165:1976)

3 Terms and definitions

The following terms and definitions apply to this standard

3.

Initial boilingpoint

Distilled under standard conditions, the instantaneous temperature observed when the first drop of condensate drops from the end of the condenser tube (corrected if necessary)

3.

Dry point

Distillation under standard conditions, the instantaneous temperature observed when the last drop of liquid at the bottom of the distillation flask evaporates

3.

Boiling range

The temperature interval between the initial boiling point and the initial boiling point,

3.

End point, final boiling point

Distillation under standard conditions: the highest temperature observed in the final stage of distillation (correction if necessary)

4 Method summary

Under the specified conditions, a 100mL sample was distilled

Related Links: Determination of the Crystallization Point of Organic Chemical Products (3)