Standard No.:	GB/T 13080-2004
Chinese Name:	饲料中铅的测定 原子吸收光谱法
English Name:	Determination of lead in feeds—Method using atomic absorption spectrometry
Professional Classification:	B20 Cereal crop and forage crop in general
Professional Classification:	GB National Standard
ICS Classification:	65.120
Issued by:
Issued on:	2004-06-09
Implemented on:	2004-10-01
Status:	ABOLISHED
Replace By:	GB/T13080-2018 Determination of lead in feeds—Atomic absorption spectrometry
Replace By Date:	2019-04-01
Language:	English
File Format:	PDF
Word Count:
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1. Scope

This standard specifies determination of lead in feeds by atomic absorption spectrometry method.
This standard is applicable to determination of lead in formula feed, concentrate feed, single feed and additive premix.
Dry ashing method is applicable to determination of lead in feed material, formula feed and concentrate feed containing much organic substance.
Wet digestion method is divided into hydrochloric acid digestion method and perchloric acid digestion method. The former is applicable to determination of lead in additive premix and mineral feed excluding organic substance. The latter is applicable to determination of lead in additive premix containing organic substance.

2. Normative References

The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigenda), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document applies.
GB/T 6682 Water for Laboratory Use - Specifications
GB 6819 Dissolved Acetylene

3. Principle