GB/T 2282-2022Method for measuring distillation range of coking light oil products (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.

This document replaces GB/T 2282-2000 "Determination of Distillation Range of Coking Light Oil Products". Compared with GB/T 2282-2000, in addition to the structure In addition to adjustments and editorial changes, the main technical changes are as follows.

a) Modified normative references (see Chapter 2, Chapter 2 of the 2000 edition);

b) Modify the "asbestos" material to "heat-resistant thermal insulation" material (see 6.7, 6.9, 6.7, 6.9 of the 2000 edition);

c) Changed the requirements for heat sources (see 6.10, 6.10 of the 2000 edition);

d) Added requirements for analytical balance equipment (see 6.12);

e) Added sampling requirements (see 7.1);

f) Changed the requirements for inspection in the test procedure (see 9.4, 8.4 of the 2000 edition);

g) Added the conversion formula for atmospheric pressure [see formula (7) in 10.4];

h) The requirement for rounding off the calculation results is added (see 10.5);

i) Added the content of the test report (see Chapter 12).

1 Scope

This document specifies the reagents and materials, instruments and equipment, sample processing, test preparation, test procedures, Test data processing, precision, test report.

This document is applicable to the determination of distillation range of light oil products such as coking benzene, phenol, pyridine and quinoline.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 1999 Sampling method for coking oil products

GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values

YB/T 2305 Glass thermometer for testing coking products

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 Principles

Under the specified conditions, distill a 100mL (100g) sample, observe the thermometer reading and the volume of the distillate, and according to the obtained data, The distillation range of the tested sample is obtained by calculation.

5 Reagents and Materials

5.1 Potassium hydroxide or sodium hydroxide. chemically pure.

5.2 Anhydrous calcium chloride. chemically pure.

6 Instruments and equipment