GB/T 6699-2015Coking naphthalene (English PDF)
焦化萘
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 9, 2015
Implementation date
December 1, 2015
Scope
GB/T 6699-2015 is the English-translated version of 焦化萘.
GB/T 6699-2015 is the Chinese standard "Coking naphthalene". Its scope clause reads: This standard specifies the technical requirements of coking naphthalene, test methods, inspection rules, packaging, transportation, storage, quality certificates and safety notices matter.
This standard applies to the fraction obtained from coal tar naphthalene, washing, distillation or crystallization processes resulting coking naphthalene. Its clauses include technical requirements.
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Document preview — GB/T 6699-2015
National Standard of the People's Republic of China
- ICS
- 71.080.15
- Classification
- G 16
- Replacing
- GB/T 6699-1998
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
This standard specifies the technical requirements of coking naphthalene, test methods, inspection rules, packaging, transportation, storage, quality certificates and safety notices matter.
This standard applies to the fraction obtained from coal tar naphthalene, washing, distillation or crystallization processes resulting coking naphthalene.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1999 coking oil products sampling methods
GB/T 2000 coking products solid sampling methods
GB/T 2295 coking products of solid ash determination
Determination of GB/T 3069.2 naphthalene crystallization point
GB/T 6701 Determination of naphthalene non-volatile matter
GB/T 6702 naphthalene acid colorimetric assay method
GB/T 8170 repair value expressed about the rules and limit values and judgment
3 Technical requirements
3.1
Coking include naphthalene and refined naphthalene industrial naphthalene, which shall conform to the technical requirements of Table 1.
Table 1 Technical Requirements project index
Refined naphthalene industrial naphthalene
Excellent grade gifted class one two one two
Exterior white
Powdery, flaky crystal
White with reddish or yellowish
Powdery, flaky crystal
White, reddish or yellowish powder allowed,
Lamellae
Naphthalene content (mass fraction) /% not less than 99.30 98.95 98.45 96.60 96.00 95.00
Crystallization point/°C no less than 79.8 79.6 79.3 78.3 78.0 77.5
Non-volatile matter (mass fraction) /% not more than - 0.01 0.02 0.04 0.06 0.08
Ash (mass fraction) /% not more than - 0.006 0.008 0.01 0.01 0.02
Pickling colorimetric/No
Standard color solution is not deeper than twenty four - - - - 3.2 appearance of non-volatile matter by plant factory inspection data.
3.3
Naphthalene liquid supplied by a non-volatile index specified by both parties.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 6699
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 6699-2015 | Coking naphthalene | current edition | Current |
| GB/T 6699-1998 | Coking naphthalene | previous edition | Superseded |
This page sells the current edition, GB/T 6699-2015. Earlier editions are listed for reference only.
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