[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-501677-105":59,"doc-detail-501677-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","appendix-17-standard-values-for-testing","Appendix 17 - Standard Values for Testing","","Appendix 17 sets out standard values and best-practice requirements for grain testing, focusing on laboratory competence, equipment suitability, documented methods, and operator training. It outlines a framework that supports laboratories participating in ring testing and proficiency testing schemes, including acceptable limits of variation and deviation from defined mean/median or reference values. The document also defines scope by listing which tests should be included across grain types, followed by guidance on equipment calibration, performance checks, sampling representativeness, reporting units, and key statistical measures such as repeatability, reproducibility, and standard deviations.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/appendix-17-standard-values-for-testing/501677/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/appendix-17-standard-values-for-testing/501677.png","ImageObject",300,407,{"name":92,"@type":93},"nayy☆","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-16","2026-10-03",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Who should adopt this testing standard for grain?","Question",{"text":112,"@type":113},"All UK laboratories that test grain for trading purposes should adopt the standard. Registers of participating laboratories and their testing protocols are listed on relevant trade association websites.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What is the scope of tests that participating laboratories should include?",{"text":117,"@type":113},"Participating laboratories ideally include moisture, specific weight, screenings, admixture, protein, nitrogen, oil, falling number, gluten, hardness, germination, mycotoxins, and erucic acid across the applicable grain types. Laboratories covering fewer tests have a reduced scope.",{"name":119,"@type":110,"acceptedAnswer":120},"What do repeatability and reproducibility mean in this document?",{"text":121,"@type":113},"Repeatability is the permitted difference between two results on the same sample using the same person and instrument within a short timeframe. Reproducibility is the permitted difference between two results on the same sample from different testing facilities.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},501677,1791189487,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},962090893153,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Appendix 17  \nStandard Values for Testing  \nThe standard  \nThis publication describes the elements needed for best laboratory practice for grain testing. It gives straightforward guidance on the requirements for equipment, methods and operators. It is not designed to supersede any quality systems already in place and is subject to third party audit and accreditation. However, it provides a framework for those who do not operate to these standards (seepage 2) .  \nIn addition to the framework, the publication describes targets for testing. These are measures of the proficiency of a laboratory and are given as the limits of variation that are acceptable for repeat testing by the laboratory. They are also given as limits of deviation from defined mean/median values or reference values when participating in proficiency test schemes and limits of variation for use with Internal Quality Control checks. Limits of variation for staff competency are also provided. These values have been derived from a very large pool of actual testing data. An explanation of terminology and derivation of standard value is given on page 3, followed by standard values in the table on page 4.  \nWho should adopt this standard?  \nAll UK laboratories that test grain for trading purposes. Registers of participating laboratories (along with their testing protocols) can be found the relevant trade association websites. Click on the relevant link to view the register or scheme.  \n[www.nabim.org.uk/wheat-testing-at-mill-intake](www.nabim.org.uk/wheat-testing-at-mill-intake)[ ](www.nabim.org.uk/wheat-testing-at-mill-intake)[www.aictradeassurance.org.uk/tascc](www.aictradeassurance.org.uk/tascc)[ ](www.aictradeassurance.org.uk/tascc)[www.ukmalt.com/protocols-and-procedures](www.ukmalt.com/protocols-and-procedures)[ ](www.ukmalt.com/protocols-and-procedures)[www.ukas.com/list-all-organisations-category](www.ukas.com/list-all-organisations-category)  \nScope – tests to be included in the scheme  \nIdeally all participating laboratories should include the following tests within ring testing schemes. Those laboratories not undertaking the full range of tests will have a reduced scope.  \n\n| Test Wheat Barley OSR Oats Rye Peas Beans Linseed Maize |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| Moisture | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 |\n| Specific weight | 􀀳 | 􀀳 |  | 􀀳 | 􀀳 |  |  |  |  |\n| Screenings | 􀀳 | 􀀳 |  | 􀀳 | 􀀳 |  |  |  |  |\n| Admixture | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 | 􀀳 |\n| Protein | 􀀳 |  |  | 􀀳 | 􀀳 |  |  |  |  |\n| Nitrogen |  | 􀀳 |  |  |  |  |  |  |  |\n| Oil |  |  | 􀀳 |  |  |  |  | 􀀳 |  |\n| Falling number | 􀀳 |  |  |  | 􀀳 |  |  |  |  |\n| Gluten | 􀀳 |  |  |  |  |  |  |  |  |\n| Hardness | 􀀳 |  |  |  |  |  |  |  |  |\n| Germination |  | 􀀳 |  |  |  |  |  |  |  |\n| Mycotoxins | 􀀳 | 􀀳 |  |  |  |  |  |  |  |\n| Erucic Acid |  |  | 􀀳 |  |  |  |  |  |  |\n\nGrain testing best practice  \nEquipment  \n1. All equipment used for testing must be fit for purpose, serviced and maintained in compliance with the laboratory’s quality system and manufacturer’s instructions. Requirements for equipment, eg balance accuracy, would be given in the test method  \n2. Equipment shall be calibrated according to routines within the method and/or against a defined schedule  \n3. Performance checks must be done before use. These checks should be performed daily for contractual testing or weekly, as a minimum, for non-contractualtesting  \n4. When all the above (1–3) have been fulfilled the equipment is ready foruse  \nMethod  \n5. The method shall be documented – this can be an official method or an in-house procedure. If the latter is used, the relationship to the official method must be known. Procedures must be in place to ensure that only current methods are used  \n6. Is the method accepted by the grain industry? Ensure you only use methods that give results that others recognise, eg SKCS scale for wheat hardness  \nOperator  \n7. All staff must be compet","cbCainfeQHJ5ek6M","https://ap.wps.com/l/cbCainfeQHJ5ek6M","pdf",512022,11,"English","# Grain testing best practice\n## Equipment\n## Method\n## Operator\n## Sample, testing and reporting\n## Standard values for testing","[{\"question\":\"Who should adopt this testing standard for grain?\",\"answer\":\"All UK laboratories that test grain for trading purposes should adopt the standard. Registers of participating laboratories and their testing protocols are listed on relevant trade association websites.\"},{\"question\":\"What is the scope of tests that participating laboratories should include?\",\"answer\":\"Participating laboratories ideally include moisture, specific weight, screenings, admixture, protein, nitrogen, oil, falling number, gluten, hardness, germination, mycotoxins, and erucic acid across the applicable grain types. Laboratories covering fewer tests have a reduced scope.\"},{\"question\":\"What do repeatability and reproducibility mean in this document?\",\"answer\":\"Repeatability is the permitted difference between two results on the same sample using the same person and instrument within a short timeframe. Reproducibility is the permitted difference between two results on the same sample from different testing facilities.\"}]","Appendix 17 - Standard Values for Testing | PDF",1791022549,28]