GB/T 38772-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 38772-2020 | English | 85 |
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GB/T 38772-2020: Pitch from coal liquefaction---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT38772-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 75.140
G 18
Pitch from coal liquefaction
煤液化沥青
ISSUED ON: APRIL 28, 2020
IMPLEMENTED ON: NOVEMBER 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Technical requirements and test methods ... 5
5 Inspection rules ... 6
6 Packaging, marking, transportation, storage and delivery acceptance ... 7
7 Safety ... 7
Pitch from coal liquefaction
1 Scope
This Standard specifies the terms and definitions, technical requirements and
test methods, inspection rules, packaging, marking, transportation, storage,
delivery acceptance and safety requirements for pitch from coal liquefaction.
This Standard applies to pitch products that are produced by processes such
as hydro-liquefaction and coal-oil co-processing, with coal as raw material.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
document.
GB/T 267, Petroleum products - Determination of flash and fire points (Open
cup)
GB/T 2288, Coking products - Determination of moisture content
GB/T 2292, Determination of toluene insoluble content for coking products
GB/T 2293, The method of quinoline-insoluble for pitch products of coal
carbonization
GB/T 4509, Standard test method for penetration of bitumen
GB/T 5304, Asphalt thin-film oven test method
GB/T 6679, General rules for sampling solid chemical products
GB/T 8928, Standard test method for density of semi-solid and solid asphalt
GB/T 29748, Coal direct liquefaction - Determination of ash in coal
liquefaction residue
GB 30000.8-2013, Rules for classification and labelling of chemicals - Part
8: Flammable solids
GB/T 30043, Coal direct liquefaction - Determination of softening point of
liquefaction residue - Ring and ball apparatus
Quinoline insoluble
matter/% ≤1.0 ≤5.0 - GB/T 2293
Moisture/% ≤5.0 GB/T 2288
Density (25 °C)/(g/cm3) Report GB/T 8928
When pitch from coal liquefaction is used downstream, according to its use, attention
shall also be paid to the indicators of sulfur and other harmful elements, which shall meet
relevant regulations.
5 Inspection rules
5.1 Delivery inspection
Delivery batch inspection items: ash, softening point, toluene insoluble matter,
moisture.
Delivery cycle inspection items: penetration, mass change, flash point,
quinoline insoluble matter, density. In the case of stable production, the
inspection cycle is one year.
5.2 Type inspection
All inspection items that are specified in Table 1 are type inspection items.
Carry out type inspection in the following cases:
a) Trial type appraisal of new products or products that are transferred to the
factory for production;
b) After formal production, if there are major changes in structure, materials
and processes, which may affect product performance;
c) When production resumes after a long-term shutdown;
d) Type inspection according to cycle during normal production;
e) When the national quality supervision institutions propose a requirement
to carry out type inspection;
f) When the user proposes a requirement to carry out type inspection.
5.3 Batch rules
In the case of the same production process, the volume of each batch of
products does not exceed 2 000 t.
5.4 Sampling rules
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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