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GB/T 3781.6-2019Acetylene black—Part 6: Determination of apparent specific volume (English PDF)

乙炔炭黑第6部分：视比容的测定

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 30, 2019

Implementation date

July 1, 2020

Scope

GB/T 3781.6-2019 is the English-translated version of 乙炔炭黑第6部分：视比容的测定.

GB/T 3781.6-2019 is the Chinese standard "Acetylene black—Part 6: Determination of apparent specific volume". Its scope clause reads: This part of GB/T 3781 specifies the method for determining the specific volume of acetylene black by manual method (A method) or instrument method (B method).

This section applies to acetylene black. Its clauses include principle; instruments.

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Document preview — GB/T 3781.6-2019

National Standard of the People's Republic of China

ICS: 83.040.20
Classification: G 49
Replacing: GB/T 3781.6-2006

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Principle
4 instruments

1 Scope

This part of GB/T 3781 specifies the method for determining the specific volume of acetylene black by manual method (A method) or instrument method (B method).

This section applies to acetylene black.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 3782 acetylene black

GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values

GB/T 12804 laboratory glass instrument cylinder

3 Principle

A measuring cylinder equipped with a certain amount of carbon black sample is subjected to a vertical free fall from a certain height, and is repeatedly dropped until the carbon black sample body

The ratio of the volume of the sample after the tapping to the mass of the sample is the apparent specific volume of the carbon black sample.

4 instruments

4.1

Analytical balance with a resolution of 1 mg.

4.2

With a measuring cylinder, the capacity is 50cm3, the graduation value is 1cm3, GB/T 12804.

4.3

Rubber sheet, thickness about 6mm, Shore A hardness (ShoreA). 70~80.

4.4

Vibrating Densitometer, the vibration frequency of the double station is up to 300r/min, and the vibration amplitude is up to 15mm, as shown in Figure 1.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Cited by

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GB/T 7048-2026|GB/T 20020-2025|GB/T 21840-2025|GB/T 3780.31-2025|GB/T 3780.7-2025|GB/T 3781.9-2025

Editions of GB/T 3781.6

Edition	Title	Revision	Status
GB/T 3781.6-2019	Acetylene black—Part 6: Determination of apparent specific volume	current edition	Current
GB/T 3781.6-2006	Acetylene black—Part 6: Determination of apparent specific volume	previous edition	Superseded

This page sells the current edition, GB/T 3781.6-2019. Earlier editions are listed for reference only.

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