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YB/T 115-2004

Chinese Standard: 'YB/T 115-2004'
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Standard ID YB/T 115-2004 (YB/T115-2004)
Description (Translated English) Silica fume for unshaped refractory
Sector / Industry Ferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard D52
Classification of International Standard 71.060.20
Word Count Estimation 6,613
Date of Issue 2004/6/17
Date of Implementation 2004/11/1
Older Standard (superseded by this standard) YB/T 115-1997
Regulation (derived from) People's Republic of China State Development & Reform Commission Notice 2004 No. 30; Ministry of Industry and Information Technology Notice 2011 No. 25
Summary This standard specifies the use of monolithic refractories silica dioxide grades, technical requirements, test methods, inspection rules, packaging, labeling, storage, transport and quality certificates. This standard applies when ferroalloy smelting or industrial silicon, silicon-containing flue gases collected by hoods, after oxidation by dry dust collection unit cohesion collected fine silica powder.

YB/T 115-2004
ICS 71.060.20
D 52
Replacing YB/T 115-1997
Silica fume for unshaped refractory
Issued by. National Development and Reform Commission
ISSUED ON. JUNE 17, 2004
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Designations ... 5 
4. Technical Requirements ... 5 
5 Test Methods ... 5 
6 Inspection Rules ... 6 
7 Packaging, Marking, Transport, Storage and Quality Certificates ... 7 
Annex A ... 8 
This Standard replaces YB/T 115-1997 Silica Fume for Unshaped Refractory.
Compared with YB/T 115-1997, the main changes of this Standard are as follows.
- Modify the second paragraph of scope;
- Add the notations for designations; use designations to replace the grade of the
previous standard;
- Adjust the reference standards in the previous standard; add the reference standard
GB/T 9724;
- Adjust the indexes of calcium-magnesium, potassium-sodium and loss on ignition of
the previous standard;
- Change the batch in the previous standard from “10t/batch” into “20t/batch”;
- Change the factory-exit inspection of the previous standard from 6 items to 5 items.
Annex A of this Standard is normative.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of China Metallurgical Information and
Standard Institute.
Drafting organizations of this Standard. Tianjin Chaoyang Refractory Factory, and China
Metallurgical Information and Standard Institute.
Main drafters of this Standard. Xu Daxiong, Chen Zhiqiang, and Gao Jianping.
This Standard was first-time released in 1997.
Silica Fume for Unshaped Refractory
1 Scope
This Standard specifies the designations, technical requirements, test methods, packaging,
marking, storage, transport, and quality certificates of silica fume for unshaped refractory.
This Standard applies to that – when smelting ferrous alloys or industrial silicon, silica-
bearing fume are gathered by fume hoods; after oxidized and agglomerated, silica fume is
collected through dry dust collectors.
2 Normative references
The articles contained in the following documents have become part of this Standard when
they are quoted herein. For the dated documents so quoted, all the modifications
(excluding corrections) or revisions made thereafter shall not be applicable to this Standard.
For the undated documents so quoted, the latest editions shall be applicable to this
GB/T 6901.1 Rules for the presentation of graphical symbols for use in technical
product documentation - Part 1. Basic rules
GB/T 6901.2 Rules for the presentation of graphical symbols - Graphical symbols for
use in the technical documentation of products - Part 2. Specification for graphical
symbols in a computer sensible form,including raphical symbols for a reference
library,and requirements
GB/T 6901.3 Rules for the presentation of graphical symbols - Graphical symbols for
use in the technical documentation of products - Part 3. Classification of connect notes
networks and their encoding
GB/T 6901.4 Chemical analysis of silica refractories - Part 4. Determination of iron
oxide - o-Phenanthroline photometric method
GB/T 6901.5 Chemical analysis of silica refractories - Part 5. Determination of
aluminium oxide - Chromazurol S photometric method
GB/T 6901.6 Chemical analysis of silica refractories - Part 6. Determination of
aluminium oxide - EDTA volumetric method
GB/T 6901.8 Chemical analysis of silica refractories - Part 8. Determination of
calciuim oxide and magnesium oxide - Atomic absorption spectrophotometric method
GB/T 6901.9 Chemical analysis of silica refractproes - Part 9. Determination of
potassium oxide and sodium oxide - Atomic absorption spectrophotometric method
GB/T 9724 Chemical reagent - General rule for the determination of pH
GB/T 13390 Metallic powder-Determination of the specific surface area - Method of
nitrogen adsorption
GB/T 15545 Unshaped refactory - Packing, marking, transportation and storage
GB/T 16555.1-1996 Chemical analysis for silicon carbide refractories - Determination
of silicon carbide - Absorb gravimetric method
YB/T 5164 Test method for sieve analgsis of refractory mortar
3 Designations
SF – the English acronym for silica fume. The number following after it is the percentage
content of silica.
Silica fume has 4 designations in total, that is, SF96, SF93, SF90, and SF88.
4. Technical Requirements
The physiochemical indexes of silica fume are shown in Table 1. Any special requirements
can be determined through negotiation by supplier and purchaser.
5 Test Methods
5.1 Silica shall be determined in accordance with GB/T 6901.2 or GB/T 6901.3.
5.2 Alumina shall be determined in accordance with GB/T 6901.5 or GB/T 6901.6.
5.3 Ferric oxide shall be determ......
Related standard:   YB/T 105-2014  YB/T 101-2018
Related PDF sample:   GB/T 3286.8-2014  GB/T 3286.1-2012
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