EUROLAB
iso-21771-determination-of-lead-in-maize-and-sorghum
Heavy Metals in Agricultural Products AOAC 2011.19 Arsenic Species in Rice and Rice ProductsAOAC 2011.20 Determination of Arsenic in Dried Beans and LentilsAOAC 2012.14 Total Mercury in Aquaculture CropsAOAC 2015.01 Total Arsenic in Wheat and Wheat FlourAOAC 2015.16 Speciated Arsenic in Apple and PearAOAC 925.02 Lead Determination in Agricultural Oils and ButtersAOAC 972.25 Lead and Cadmium in Tomato PasteAOAC 973.34 Zinc, Lead, and Iron in Citrus FruitsAOAC 974.14 Determination of Lead in Apple JuiceAOAC 974.27 Arsenic, Cadmium and Lead in Banana and Tropical FruitAOAC 986.15 Mercury Analysis in Fish Feed CropsAOAC 986.16 Metal Contaminants in Honey and Bee ProductsAOAC 991.11 Lead Detection in Potato and Root CropsAOAC 993.14 Cadmium and Lead Analysis in Leafy VegetablesAOAC 994.02 Cadmium in Processed VegetablesAOAC 999.09 Mercury Levels in Mushrooms and FungiAOAC 999.10 Arsenic Detection in Fruit-Based ProductsAOAC 999.11 Cadmium and Lead in Baby Food Derived from AgricultureCodex CXG 80-2020 Maximum Residue Limits for Lead in Agricultural CommoditiesCodex STAN 193-1995 Arsenic and Lead in Spices and HerbsCodex STAN 238-2003 Maximum Limits for Heavy Metals in Cocoa and Cereal ProductsEPA 200.9 Determination of Heavy Metals in Edible HerbsEPA 3050B Total Metal Content in Plant Tissue by Acid DigestionEPA 6010D Inductively Coupled Plasma Metal Testing in GrainsEPA 6020B Multi-Elemental Metal Testing in Leafy CropsEPA 7000B Flame Atomic Absorption for Metal Residues in Feed GrainEPA 7471B Mercury Content in Agricultural Sediments and CropsISO 11047 Cadmium and Lead in Fertilizer-Impacted VegetablesISO 11085 Determination of Lead in Oilseed and Feed CropsISO 11269-1 Assessment of Zinc and Copper Uptake in CropsISO 11348 Heavy Metals Impact on Germination of Agricultural SeedsISO 12193 Determination of Cadmium in Cocoa and Chocolate ProductsISO 12505 Determination of Toxic Elements in Wine GrapesISO 14870 Screening of Agricultural Products for Metal ResiduesISO 15090 Evaluation of Heavy Metal Migration from Soil to GrainISO 15181-2 Leaching of Metals from Soil to Roots in Field CropsISO 15190 Quantification of Heavy Metals in Agricultural SoilISO 15749 Monitoring of Heavy Metals in Leafy GreensISO 15756 Determination of Heavy Metals in Green TeaISO 17294-2 ICP-MS Testing for Heavy Metals in Agricultural InputsISO 17378-2 Trace Elements in Irrigation Water Affecting Crop UptakeISO 18512 Soil-to-Plant Transfer of Heavy MetalsISO 18589-3 Metal Isotope Activity in Agricultural ProduceISO 18875 Cadmium Transfer in Root VegetablesISO 21033 Determination of Lead Content in Cereals and PulsesISO 21038 Assessment of Heavy Metals in Organic ProduceISO 21527 Lead Residue Testing in Dried FruitsISO 22036 Assessment of Chromium in Edible BeansISO 24152 Evaluation of Metal Content in Sprouted SeedsJECFA PTWI Evaluation for Lead in Food CropsJECFA Safety Evaluation of Lead and Arsenic in Agricultural Oils

Comprehensive Guide to ISO 21771 Determination of Lead in Maize and Sorghum Laboratory Testing Service Provided by Eurolab

ISO 21771 is a widely recognized standard for the determination of lead in maize and sorghum. This standard is published by the International Organization for Standardization (ISO) and is used globally to ensure the accuracy and reliability of laboratory testing results.

The standard is based on the principle that the presence of lead in food products poses a significant risk to human health, particularly in children and pregnant women. The standard outlines the requirements for sampling, sample preparation, analysis, and reporting of lead levels in maize and sorghum.

Legal and Regulatory Framework

The legal and regulatory framework surrounding ISO 21771 is governed by various national and international standards. These include:

  • European Unions (EU) Food Safety Authority (EFSA)

  • United States Food and Drug Administration (FDA)

  • International Organization for Standardization (ISO)

  • American Society for Testing and Materials (ASTM)

    • These regulatory bodies have established guidelines and regulations to ensure that food products, including maize and sorghum, are safe for human consumption.

    Standard Development Organizations

    The development of ISO 21771 is a collaborative effort between standard development organizations, including:

  • International Organization for Standardization (ISO)

  • American Society for Testing and Materials (ASTM)

  • European Committee for Standardization (CEN)

    • These organizations work together to ensure that standards are developed and updated to reflect the latest scientific research and technological advancements.

    Standard Evolution and Update

    Specific Standard Numbers and Scope

    The standard numbers and scope for ISO 21771 are as follows:

  • ISO 21771:2016 (first edition)

  • ISO 21771:2020 (second edition)

    • The scope of the standard includes:

  • Sampling

  • Sample preparation

  • Analysis

  • Reporting

    • Standard Compliance Requirements

    Compliance with ISO 21771 is mandatory for laboratories performing lead analysis in maize and sorghum. Laboratories must adhere to the standards requirements for sampling, sample preparation, analysis, and reporting.

    Industries and Sectors Requiring Testing

    The following industries and sectors require testing according to ISO 21771:

  • Food manufacturers

  • Importers and exporters

  • Regulatory agencies

  • Quality control laboratories

    • These industries and sectors rely on accurate and reliable test results to ensure the safety and quality of maize and sorghum.

    Risk Factors and Safety Implications

    The presence of lead in food products poses significant risks to human health, particularly in children and pregnant women. Prolonged exposure to lead can cause a range of health problems, including:

  • Neurological damage

  • Developmental delays

  • Organ damage

    • Therefore, it is essential that laboratories performing lead analysis in maize and sorghum adhere strictly to ISO 21771.

    Quality Assurance and Quality Control

    Quality assurance and quality control are crucial aspects of laboratory testing. Eurolab ensures that all tests performed according to ISO 21771 meet the highest standards of accuracy, precision, and reliability.

    The test conditions and methodology for determining lead in maize and sorghum involve several steps:

    1. Sampling: Samples are collected from maize and sorghum lots using a representative sampling method.

    2. Sample Preparation: The samples are prepared according to the standards requirements, which include drying, grinding, and digestion.

    3. Analysis: The sample is analyzed using an atomic absorption spectrometer (AAS) or inductively coupled plasma mass spectrometry (ICP-MS).

    4. Reporting: The test results are reported according to the standards requirements.

    Testing Equipment and Instruments

    Eurolab uses state-of-the-art equipment and instruments for testing, including:

  • Atomic absorption spectrometer (AAS)

  • Inductively coupled plasma mass spectrometry (ICP-MS)

    • These instruments provide accurate and reliable test results, ensuring that laboratories meet the highest standards of quality.

    Testing Environment Requirements

    The testing environment requires specific conditions to ensure accurate and reliable test results. These include:

  • Temperature: 20C 5C

  • Humidity: 50 10

  • Pressure: 1013 mbar 5

    • These conditions are essential for maintaining the accuracy and reliability of test results.

    Sample Preparation Procedures

    The sample preparation procedures involve several steps, including:

    1. Drying: The sample is dried to a moisture content of less than 0.01.

    2. Grinding: The sample is ground into a fine powder using a ball mill or mortar and pestle.

    3. Digestion: The sample is digested using a strong acid, such as nitric acid.

    Reporting

    The test results are reported according to the standards requirements, which include:

  • Sample identification

  • Test method used

  • Result in mg/kg

    • This reporting format ensures that laboratories meet the highest standards of quality and accuracy.

    Quality Control Measures

    Eurolab implements strict quality control measures to ensure accurate and reliable test results. These include:

    1. Internal Quality Control: Eurolab performs internal quality control checks on all tests performed according to ISO 21771.

    2. External Quality Assessment: Eurolab participates in external quality assessment programs, such as proficiency testing (PT) schemes.

    These measures ensure that laboratories meet the highest standards of quality and accuracy.

    Conclusion

    ISO 21771 is a widely recognized standard for determining lead levels in maize and sorghum. Laboratories must adhere to this standards requirements for sampling, sample preparation, analysis, and reporting to ensure accurate and reliable test results. Eurolab ensures that all tests performed according to ISO 21771 meet the highest standards of quality, accuracy, and reliability.

    Next Steps

    To take advantage of Eurolabs expert laboratory services, please contact our team today. We will be happy to discuss your testing needs and provide a quote for our services.

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