GB/T 6699-2015 English PDF

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GB/T 6699-2015: Coking naphthalene
Status: Valid

GB/T 6699: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6699-2015	169	Add to Cart	3 days	Coking naphthalene	Valid
GB/T 6699-1998	199	Add to Cart	2 days	Coking naphthalene	Obsolete
GB/T 6699-1986	RFQ	ASK	3 days	Refined naphthalene	Obsolete

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Basic data

Standard ID: GB/T 6699-2015 (GB/T6699-2015)
Description (Translated English): Coking naphthalene
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G16
Classification of International Standard: 71.080.15
Word Count Estimation: 8,881
Date of Issue: 2015-10-09
Date of Implementation: 2015-12-01
Older Standard (superseded by this standard): GB/T 6699-1998
Quoted Standard: GB/T 1999; GB/T 2000; GB/T 2295; GB/T 3069.2; GB/T 6701; GB/T 6702; GB/T 8170
Regulation (derived from): National Standard Announcement 2015 No.31
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies the technical requirements of coking naphthalene, test methods, inspection rules, packaging, transportation, storage, quality certificates and safety precautions. This Standard applies to the fraction obtained from coal tar naphthalene, washing, distillation or crystallization processes resulting coking naphthalene.

GB/T 6699-2015: Coking naphthalene

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Coking naphthalene) ICS 71.080.15 G16 National Standards of People's Republic of China Replacing GB/T 6699-1998 Coking naphthalene Issued on. 2015-10-09 2015-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 6699-1998 "coking naphthalene", as compared with the present standard GB/T 6699-1998, the main changes are as follows. --- Increasing the foreword, normative references contents of the file, the safety precautions; --- Modify the contents of the scope of application. the "high-temperature fractionation" Delete; --- Revised technical requirements, an increase of naphthalene content; --- Increased chromatographic method. The standard proposed by China Iron and Steel Association. This standard by the National Coal Chemical Industry Standardization Technical Committee (SAC/TC469) centralized. This standard was drafted. Shanghai Baosteel Chemical Co., Ltd., Metallurgical Industry Information Standards Institute. The main drafters of this standard. faint Shi, Chen Guomin, Chen Huiping, Chenyue Fei, Sun Wei, Chou Jinhui, Zheng Jing shall, Zhang Ying. This standard replaces the standards previously issued as follows. --- GB/T 6699-1986, GB/T 6699-1998; --- GB/T 6700-1986. Coking naphthalene

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 \u200b\u200band 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/℃ 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. ......

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