Valid

HJ 491-2019Soil and sediment - Determination of copper, zinc, lead, nickel and chromium - Flame atomic absorption spectrophotometry (English PDF)

土壤和沉积物铜、锌、铅、镍、铬的测定火焰原子吸收分光光度法

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Issued by

Ministry of Ecology and Environment of the People's Republic of China

Level / Type

National · Mandatory

Issue date

May 12, 2019

Implementation date

September 1, 2019

Scope

HJ 491-2019 is the English-translated version of 土壤和沉积物铜、锌、铅、镍、铬的测定火焰原子吸收分光光度法.

HJ 491-2019 is the Chinese industry standard "Soil and sediment - Determination of copper, zinc, lead, nickel and chromium - Flame atomic absorption spectrophotometry".

It was issued on May 12, 2019 by the Ministry of Ecology and Environment of the People's Republic of China, and took effect on September 1, 2019. It is in force and replaces HJ 491-2009.

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Document preview — HJ 491-2019

National Standard of the People's Republic of China

Issued by: Ministry of Ecology and Environment of the People's Republic of China

Document data

1 Document data

Sector: Environmental Protection (industry standard).

Issuing body: Ministry of Ecology and Environment of the People's Republic of China.

Date of issue: 2019-05-12.

Date of implementation: 2019-09-01.

Status: valid, replaces HJ 491-2009.

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

Referenced standards

Cited by

Editions of HJ 491

Edition	Title	Revision	Status
HJ 491-2019	Soil and sediment - Determination of copper, zinc, lead, nickel and chromium - Flame atomic absorption spectrophotometry	—	Valid
HJ 491-2009	Soil quality. Determination of total chromium. Flame atomic absorption pectrometry	—	Obsolete

This page sells the current edition, HJ 491-2019. Earlier editions are listed for reference only.

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