GB 7300.309-2025 Feed additives—Part 3:Minerals and their complexes (or chelates)—Ferrous lactate English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS H
National Standard of the People's Republic of China
GB 7300.309-2025
Feed additives - Part 3: Minerals and their complexes (or chelates) - Ferrous lactate
饲料添加剂 第3部分： 矿物元素及其络（螯）合物 乳酸亚铁
Issue date: 2025-12-31 Implementation date: 2027-01-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
Introduction
1 Scope
2 Normative References
3 Terms and Definitions
4 Chemical Name, Molecular Formula, Relative Molecular Mass, and Structural Formula
5 Technical Requirements
6 Sampling
7 Identification
8 Inspection Rules
9 Labeling, Packaging, Transportation, Storage, and Shelf Life
Introduction
Feed additives refer to substances added in small or trace amounts during the processing, manufacturing, and use of feed, including nutritional feed additives and general feed additives. For ease of use, and according to product type, GB 7300 "Feed Additives" is divided into the following 13 major categories:
- Amino acids, amino acid salts, and analogues;
- Vitamins and vitamin-like substances;
- Mineral elements and their complexes (chelates);
- Enzyme preparations;
- Microorganisms;
- Non-protein nitrogen;
- Antioxidants;
- Preservatives, mold inhibitors, and acidity regulators;
- Coloring agents;
- Flavoring and appetite-stimulating substances;
- Binders, anti-caking agents, stabilizers, and emulsifiers;
- Polysaccharides and oligosaccharides;
- Others.
The product ferrous lactate covered by this document belongs to the third major category: Mineral elements and their complexes (chelates). As ferrous lactate is the ninth product standard published under this major category, this document is assigned the number GB 7300.309 and serves as Part 309 of GB 7300.
Feed Additives — Part 3: Mineral Elements and Their Complexes (Chelates) — Ferrous Lactate
1 Scope
This document provides the chemical name, molecular formula, relative molecular mass, and structural formula of ferrous lactate. It specifies the technical requirements, inspection rules, labeling, packaging, transportation, storage, and shelf life of the feed additive ferrous lactate, and describes the sampling and test methods.
This document applies to the feed additive ferrous lactate produced by processes such as reaction and drying using sodium lactate (or calcium lactate) and ferrous sulfate, or using lactic acid and iron powder as raw materials.
2 Normative References
The contents of the following documents constitute essential provisions of this document through normative reference. For dated references, only the edition corresponding to the date applies. For undated references, the latest edition (including any amendments) applies.
GB 1903.47-2020 National Food Safety Standard — Food Nutrition Fortifier — Ferrous Lactate
GB/T 5917.1 Determination of Feed Particle Size — Sieving Method Using Two Sieves
GB/T 8170 Rules of Rounding Off for Numerical Values & Expression and Judgment of Limiting Values
GB/T 9724 Chemical Reagents — General Rules for the Determination of pH
GB 10648 Feed Labeling
GB/T 13079 Determination of Total Arsenic in Feeds
GB/T 13080 Determination of Lead in Feeds — Atomic Absorption Spectrometry
GB/T 14699 Feeding Stuffs — Sampling
3 Terms and Definitions
No terms and definitions are stipulated in this document.
4 Chemical Name, Molecular Formula, Relative Molecular Mass, and Structural Formula
4.1 Chemical name: Ferrous 2-hydroxypropanoate
4.2 Molecular formula: C₆H₁₀FeO₆·nH₂O, (n = 2 or 3)
4.3 Relative molecular mass: Ferrous lactate dihydrate: 270.02; Ferrous lactate trihydrate: 288.04 (calculated based on the 2024 international relative atomic masses).
4.4 Structural formula:
5 Technical Requirements
5.1 Appearance and Properties
Shall be pale green or light yellowish-green crystals or powder, with a slight characteristic odor.
5.2 Identification
Shall comply with the identification test characteristics for lactate ion and ferrous ion.
5.3 Physicochemical Indicators
Shall comply with the requirements specified in Table 1.
5.4 Hygiene Indicators
Shall comply with the requirements specified in Table 2.
6 Sampling
Carry out according to GB/T 14699.
7 Test Methods
7.1 Appearance and Properties
Place an appropriate amount of the sample on a clean, dry white porcelain plate. Observe its color and state, and smell its odor under natural light.
7.2 Identification
7.2.1 Lactate Ion
Carry out according to the provisions of A.2.2.2 in GB 1903.47-2020.
7.2.2 Ferrous Ion
Carry out according to the provisions of A.2.2.3 in GB 1903.47-2020.
7.3 Ferrous Lactate (C₆H₁₀FeO₆) Content
Carry out according to the provisions of A.3 in GB 1903.47-2020.
7.4 Ferric Iron (as Fe³⁺)
Carry out according to the provisions of A.5 in GB 1903.47-2020.
7.5 Fineness (Passing Rate through 180 μm Test Sieve)
Carry out according to the provisions of GB/T 5917.1.
7.6 Moisture
Carry out according to the provisions of A.4 in GB 1903.47-2020.
7.7 Chloride (as Cl⁻)
Carry out according to the provisions of A.6 in GB 1903.47-2020.
7.8 Sulfate (as SO₄²⁻)
Carry out according to the provisions of A.7 in GB 1903.47-2020.
7.9 pH (20 g/L Aqueous Solution)
Carry out according to the provisions of GB/T 9724.
7.10 Lead
Carry out according to the provisions of GB/T 13080.
7.11 Total Arsenic (as As)
Carry out according to the provisions of GB/T 13079.
8 Inspection Rules
8.1 Lot Formation
Products of the same specification, produced from the same materials, using the same production process, in continuous production or during the same shift, constitute a batch. The quantity per batch shall not exceed 50 t.
8.2 Factory Inspection
