GB/T 2279-2008Coking cresol (English PDF)

1 Scope

This standard specifies the technical requirements of coking cresol, test methods, inspection rules, marking, packaging, transportation, storage and safety precautions.

This standard applies from coal tar, crude phenol phenol sewage system taken by the distillation system of coking cresol.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB 190 packaging and marking of dangerous goods

GB/T 1999 coking products light oil sampling methods

GB/T 2281 coking oil products density test method

GB/T 2288-2008 Determination of Water coking products

Gas chromatographic method GB/T 2601 phenol products consisting of

GB/T 6705-2008 coking phenol

GB/T 8170 numerical rounding rules

3 Technical requirements

Cresol coking technical requirements should be consistent with the provisions in Table 1.

Table 1 project index

O-cresol Cresol cresol industry

Excellence in goods First grade Excellence in goods First grade Excellence in goods First grade

Appearance white to light tan to brown crystalline colorless transparent liquid colorless to brown transparent liquid

Density (20 °C) / (g/cm3) - 1.030 ~ 1.040 1.03 ~ 1.05

Moisture (mass fraction) /% <= 0.3 0.5 0.3 0.5 1.0

Neutral oil test (turbidity method)/# of not more than 2--1010

Phenol content (mass fraction) /% not more than - 2.0 5 -

Cresol content (mass fraction) /% not less than 99.0 96.0 - -

2,6-cresol content (mass fraction) /% not more than - 2.0 - -

Cresol content (mass fraction) /% not less than --50,454,134

Cresols + dimethyl phenolic content (mass fraction) /% not less than - - 60

Three phenolic content (mass fraction) /% not more than - - 5

Note 1. cresol liquid state is colorless or slightly colored transparent liquid.

Note 2. The class contains C7H8O all cresol isomers; dimethyl phenols contained C8H10O all isomers.

Note 3. The three phenolic contains C9H12O all isomers.