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GB/T 25282-2010Soil and sediment - Sequential extraction procedure of speciation of 13 trace elements (English PDF)

土壤和沉积物 13个微量元素形态顺序提取程序

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 10, 2010

Implementation date

February 1, 2011

Scope

GB/T 25282-2010 is the English-translated version of 土壤和沉积物 13个微量元素形态顺序提取程序.

GB/T 25282-2010 is the Chinese standard "Soil and sediment - Sequential extraction procedure of speciation of 13 trace elements".

Its scope clause reads: This standard specifies the soil and sediment arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), mercury (Hg), molybdenum (Mo), Manganese (Mn), Nickel (Ni), lead (Pb), antimony (Sb), selenium (Se) and zinc (Zn) 13 elements weak acid extractable, reducible, oxidizable, residual And water soluble form of five sequential extraction conditions and extraction procedures.

This standard applies to soil and sediment 13 extracted five elements of the form above. Its clauses include terms and definitions.

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Document preview — GB/T 25282-2010

National Standard of the People's Republic of China

ICS
73.080
Classification
D 53

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

Contents

  • 1 Scope
  • 2 Normative references
  • 3 Terms and Definitions
  • 3.1 Sequentially extracted
  • 3.2 Form speciation
  • 3.3 Weak acid extractable mildacido-solublefraction
  • 3.4 Reducible
  • 3.5 Oxidizable oxidisablefraction

1 Scope

This standard specifies the soil and sediment arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), mercury (Hg), molybdenum (Mo),

Manganese (Mn), Nickel (Ni), lead (Pb), antimony (Sb), selenium (Se) and zinc (Zn) 13 elements weak acid extractable, reducible, oxidizable, residual

And water soluble form of five sequential extraction conditions and extraction procedures.

This standard applies to soil and sediment 13 extracted five elements of the form above.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to reach an agreement on this standard is

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

Laboratory use specifications and test methods GB/T 6682 Analysis

GB/T 14506.1 Silicate rocks - Part 1. Determination of water adsorption

3 Terms and Definitions

The following terms and definitions apply to this standard.

3.1 Sequentially extracted

The physical properties (such as particle size, solubility, etc.) or chemical properties (e.g. binding state, reactivity, etc.) is different from the sample of one or a

Group substance to be measured to classify sequentially extraction process.

3.2 Form speciation

Form of an element that is the element in a system of specific chemical form of distribution.

3.3 Weak acid extractable mildacido-solublefraction

Acetic acid solution to extract the elemental form. Mainly refers to electrostatically adsorbed on the surface of the soil and sediment particles can be released from the ion exchange element

Fractions, carbonates and bound in the elemental form.

3.4 Reducible

Hydroxylamine hydrochloride solution extracted elemental form. Mainly refers to the elemental form is iron oxide, manganese retention of.

3.5 Oxidizable oxidisablefraction

Hydrogen peroxide solution and a solution of ammonium acetate extract elemental form. Mainly refers to the elemental form of organic matter and active groups combined, and sulfur

Element compounds are oxidized to form soluble sulfate form.

GB/T 5195.12-2016 | GB/T 14506.30-2010 | GB/T 5195.2-2006 | GB/T 14506.34-2019 | GB/T 14506.33-2019 | GB/T 14505-2010 | […]

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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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