This standard specifies the limit requirements for nitrates in vegetables and is applicable to leafy vegetables, root vegetables, stem vegetables, solanaceous vegetables, melons, and legumes. GB 19338-2003 Limits of Nitrates in Vegetables GB19338-2003 Standard download decompression password: www.bzxz.net

This standard is mandatory in terms of articles, and Chapter 4 is mandatory. This standard was proposed by the Beijing Municipal Bureau of Quality and Technical Supervision. Foreword
This standard was drafted by: Beijing Product Quality Supervision and Inspection Institute, National Standard Material Research Center. The main drafters of this standard are: Wang Jing, Zhou Zeyi, Cao Wenqi. This standard is published for the first time.
GB19338—2003wwW.bzxz.Net
1 Scope
Limit of nitrate in vegetables
This standard specifies the limit requirements for nitrate in vegetables. This standard applies to leafy vegetables, root vegetables, stem vegetables, solanaceous vegetables, melons, and legumes. 2 Normative references
GB19338—2003
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced documents, the latest version shall apply to this standard. GB/T5009.33 Determination of nitrite and nitrate in food GB/T8854 Name of vegetables (-)
GB/T8855 Sampling method for fresh fruits and vegetables GB/T15401 Determination of nitrite and nitrate content in fruits, vegetables and their products GB/T19339 Rapid determination of nitrate content in vegetables 3 Classification of vegetables
Leafy vegetables: mainly include green leafy vegetables, cabbage, cabbage, and leek. Root vegetables: mainly include radish, carrot, root mustard, and turnip. Stem vegetables: mainly include stem cabbage and stem mustard. Solanaceae: mainly include tomatoes, eggplants, hot (sweet) peppers, etc. Melons: mainly include cucumbers, pumpkins, wax gourds, melons, bitter melons, loofahs, chayote, snake melons, etc. Legumes: mainly include kidney beans, cowpeas, peas, vegetable soybeans, broad beans, lentils, green beans, etc. 4 Requirements
The limit of nitrate in vegetables shall comply with the provisions of Table 1. Table 1 Limit of nitrate in vegetables
Vegetable categories
Solanum, melons, beans
Stem vegetables
Root vegetables
Leafy vegetables
5 Test methods
Nitrate (as NO,)/(mg/kg·fresh weight) 440
≤1200
The identification of vegetable names shall be in accordance with GB/T8854, the sampling method shall be in accordance with GB/T8855, the determination of nitrate content in vegetables shall be carried out in accordance with GB/T15401, GB/T5009.33 and GB/T19339, and the rapid determination shall be carried out in accordance with GB/T19339. In case of dispute over the results, GB/T15401 shall prevail.
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