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GB/T 21997.2-2008Instrument for soil test - Liquid limit device - Part 2: Fall cone liquid limit device (English PDF)

土工试验仪器液限仪第2部分：圆锥式液限仪

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 17, 2008

Implementation date

October 1, 2008

Scope

GB/T 21997.2-2008 is the English-translated version of 土工试验仪器液限仪第2部分：圆锥式液限仪.

GB/T 21997.2-2008 is the Chinese standard "Instrument for soil test - Liquid limit device - Part 2: Fall cone liquid limit device".

Its scope clause reads: This section GB/T 21997 specifies the terms and definitions, classifications and structure of soil test equipment in cone liquid limit device composition, technology Requirements, test methods, inspection rules, signs and instructions, packaging, transportation, storage and so on.

This section applies to soil test instrument capable of measuring liquid limit of cohesive soil cone liquid limit device. Its clauses include terms and definitions; classification and structures.

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Document preview — GB/T 21997.2-2008

National Standard of the People's Republic of China

ICS: 07.060
Classification: N 93

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

1 Scope
2 Normative references
3 Terms and Definitions
4 Classification and structures

1 Scope

This section GB/T 21997 specifies the terms and definitions, classifications and structure of soil test equipment in cone liquid limit device composition, technology

Requirements, test methods, inspection rules, signs and instructions, packaging, transportation, storage and so on.

This section applies to soil test instrument capable of measuring liquid limit of cohesive soil cone liquid limit device.

2 Normative references

The following documents contain provisions which, through reference GB/T 21997 in this section constitute provisions of this section. For dated reference documents

Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section

Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 191-2008 Packaging - Pictorial signs (ISO 780.1997, MOD)

GB 9969.1 Instructions General Industrial Products

GB/T 15406 geotechnical engineering instrument basic parameters and general technical conditions

GB/T 15464 instrumentation packaging technology

GB/T 50279 Standard for fundamental terms of geotechnical engineering

3 Terms and Definitions

GB/T 50279 and established the following terms and definitions apply to this part of the GB/T 21997 of.

3.1

Use cones in a predetermined weight to sink within the time specified in the test instrument to measure depth of cohesive soil liquid limit, generally means a straight reading circle

Cone liquid limit device.

3.2

Photoelectric measuring principle read subsidence depth cone cone Macrofunction instrument within a specified time.

4 Classification and structures

4.1 Classification

Cone liquid limit device by reading the display is divided into cone liquid limit direct reading instrument (hereinafter referred to as liquid limit device) and the photoelectric cone liquid plastic limit tester (Hereinafter referred to as photoelectric Macrofunction instrument).

4.2 structure and composition

Liquid limit device consists of a cone (including a handle, cone, counterweight), cuvette, base composition, its structure shown in Figure 1.

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

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