{"id":269,"date":"2026-07-04T04:21:43","date_gmt":"2026-07-04T04:21:43","guid":{"rendered":"https:\/\/hjpotatoflakes.com\/?page_id=269"},"modified":"2026-07-04T04:21:43","modified_gmt":"2026-07-04T04:21:43","slug":"product-coa","status":"publish","type":"page","link":"https:\/\/hjpotatoflakes.com\/zh\/product-coa\/","title":{"rendered":"\u6280\u672f\u89c4\u683c\u8868\u548c\u5408\u683c\u8bc1\u4e66"},"content":{"rendered":"<h1 class=\"wp-block-heading has-theme-palette-11-color has-text-color has-link-color wp-elements-1\" style=\"text-transform:uppercase\">Understanding Our Quality Documents: Specification Sheet, COA &amp; Third-Party Test Report<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">At Hongji Agriculture, we provide three distinct quality documents to support our customers&#8217; procurement and quality assurance needs. Each serves a different purpose, covers different testing parameters, and follows specific Chinese national standards. This guide explains what each document is, what it includes, and when you need it.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Quick Comparison Table<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Aspect<\/th><th class=\"has-text-align-center\" data-align=\"center\">Specification Sheet<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u5206\u6790\u8bc1\u4e66\uff08COA\uff09<\/th><th class=\"has-text-align-center\" data-align=\"center\">Third-Party Test Report<\/th><\/tr><\/thead><tbody><tr><td><strong>Issued by<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Hongji QC Department<\/td><td class=\"has-text-align-center\" data-align=\"center\">Hongji QC Laboratory<\/td><td class=\"has-text-align-center\" data-align=\"center\">Independent accredited lab (CNAS\/CMA)<\/td><\/tr><tr><td><strong>Frequency<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Version-controlled (updated as needed)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Every production batch<\/td><td class=\"has-text-align-center\" data-align=\"center\">Twice per year (semi-annual)<\/td><\/tr><tr><td><strong>Scope<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Product design &amp; quality commitment<\/td><td class=\"has-text-align-center\" data-align=\"center\">Batch-specific test results<\/td><td class=\"has-text-align-center\" data-align=\"center\">Comprehensive food safety verification<\/td><\/tr><tr><td><strong>Legal status<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Reference document<\/td><td class=\"has-text-align-center\" data-align=\"center\">Batch quality certification<\/td><td class=\"has-text-align-center\" data-align=\"center\">Independent compliance evidence<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Specification Sheet<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it is:<\/strong> A comprehensive technical document that defines the product&#8217;s design parameters, quality standards, and manufacturing requirements. It is a <strong>reference standard<\/strong> \u2014 it tells you what the product <em>should<\/em> be.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it includes:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Category<\/th><th>Items Covered<\/th><\/tr><\/thead><tbody><tr><td>\u2705 Product identity<\/td><td>Product name, potato varieties (Atlantic \/ Shepody \/ McCain), reference standard SB\/T 10752-2012<\/td><\/tr><tr><td>\u2705 Allergen declaration<\/td><td>All 8 major allergens per GB 23779-2009 \/ GB 7718-2011 \u2014 all confirmed <strong>absent<\/strong><\/td><\/tr><tr><td>\u2705 Full ingredient list<\/td><td>Potato \u226599.5%, optional Mono- &amp; Diglycerides (INS471) \u22640.5%, Citric Acid (INS330) \u2264100 ppm<\/td><\/tr><tr><td>\u2705 Sensory specs<\/td><td>Color, taste\/aroma, texture, impurities\/spots limits<\/td><\/tr><tr><td>\u2705 Physicochemical specs<\/td><td>Moisture (\u22649.0%), Ash (\u22644.0%), Reducing Sugar (\u22643.0%), Blue Value (\u2264500), Net Weight<\/td><\/tr><tr><td>\u2705 Heavy metal limits<\/td><td>Pb (\u22640.5), As (\u22640.5), Cd (\u22640.1), Hg (\u22640.02), Cr (\u22641.0) mg\/kg<\/td><\/tr><tr><td>\u2705 Microbiological limits<\/td><td>TPC, Coliforms, Salmonella, S. aureus, Yeast &amp; Mold \u2014 with n\/c\/m\/M sampling plans per GB 4789<\/td><\/tr><tr><td>\u2705 Testing frequency<\/td><td>Defines how often each test is performed (hourly, per shift, per batch, quarterly, annual)<\/td><\/tr><tr><td>\u2705 Packaging specs<\/td><td>Bag types, sealing methods, palletizing<\/td><\/tr><tr><td>\u2705 Storage &amp; shelf life<\/td><td>24 months unopened, 4 weeks after opening<\/td><\/tr><tr><td>\u2705 Shipping requirements<\/td><td>FIFO, container conditions, transport hygiene<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it does NOT include:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u274c Actual test results for any specific batch<\/li>\n\n\n\n<li>\u274c Third-party verification<\/li>\n\n\n\n<li>\u274c Signatures or batch traceability numbers<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Spec Sheet = The promise.<\/strong> It says &#8220;this is how we design and control our product.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. Certificate of Analysis \u2014 COA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it is:<\/strong> A batch-specific document issued by our QC laboratory for <strong>every production batch<\/strong>. It records the actual test results for that specific batch and verifies compliance with the Specification Sheet limits.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it includes:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Category<\/th><th>Items Covered<\/th><\/tr><\/thead><tbody><tr><td>\u2705 Batch identification<\/td><td>Report No., Sample No., Batch No., production date, expiry date, batch quantity<\/td><\/tr><tr><td>\u2705 Sensory evaluation<\/td><td>Color, odor, texture, impurities \u2014 actual results for this batch<\/td><\/tr><tr><td>\u2705 Physicochemical tests<\/td><td>Moisture (actual %), Ash (actual %), Reducing Sugar (actual %), Black Spots (actual count), Blue Value (actual), Net Weight (actual kg)<\/td><\/tr><tr><td>\u2705 Microbiological tests<\/td><td>Total Plate Count \u2014 actual range across 5 samples (n=5), Coliforms \u2014 actual results<\/td><\/tr><tr><td>\u2705 Verdict<\/td><td>Overall Evaluation: <strong>Qualified<\/strong> \u6216 <strong>Not Qualified<\/strong><\/td><\/tr><tr><td>\u2705 QC signatures<\/td><td>Analyst, Reviewer, Approver \u2014 signed<\/td><\/tr><tr><td>\u2705 Company seal<\/td><td>Official QC stamp<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it does NOT include:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u274c Heavy metals (Pb, As, Cd, Hg, Cr) \u2014 tested annually, not per batch<\/li>\n\n\n\n<li>\u274c Salmonella \u2014 tested annually (3rd party semi-annual)<\/li>\n\n\n\n<li>\u274c S. aureus \u2014 tested quarterly<\/li>\n\n\n\n<li>\u274c Yeast &amp; Mold \u2014 tested quarterly<\/li>\n\n\n\n<li>\u274c Pesticide residues \u2014 tested annually<\/li>\n\n\n\n<li>\u274c Sulfur dioxide residues \u2014 tested annually<\/li>\n\n\n\n<li>\u274c Third-party lab accreditation<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>COA = The proof for each batch.<\/strong> It says &#8220;this specific batch meets the spec.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. Third-Party Test Report<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it is:<\/strong> An independent verification report issued by a <strong>CNAS\/CMA-accredited third-party laboratory<\/strong> (such as SGS, Intertek, or a recognized Chinese food safety testing institute). Performed <strong>twice per year<\/strong> (semi-annual) to provide unbiased, legally-recognized compliance evidence.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it includes (more comprehensive than COA):<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Category<\/th><th>Items Covered<\/th><\/tr><\/thead><tbody><tr><td>\u2705 All COA items<\/td><td>Sensory &amp; physicochemical tests verified by an independent lab<\/td><\/tr><tr><td>\u2705 Heavy metals (full panel)<\/td><td>Lead (GB 5009.12), Total Arsenic (GB 5009.11), Cadmium (GB 5009.15), Mercury (GB 5009.17), Chromium (GB 5009.123)<\/td><\/tr><tr><td>\u2705 Expanded microbiology<\/td><td>Salmonella (GB 4789.4), S. aureus (GB 4789.10), Yeast &amp; Mold (GB 4789.15) \u2014 in addition to TPC and Coliforms<\/td><\/tr><tr><td>\u2705 Pesticide residues<\/td><td>Full screening per GB 2763-2021 (national maximum residue limits for foods)<\/td><\/tr><tr><td>\u2705 Sulfur dioxide residues<\/td><td>GB 5009.34<\/td><\/tr><tr><td>\u2705 Accredited lab credentials<\/td><td>CNAS or CMA certification mark, lab accreditation number, authorized signatory<\/td><\/tr><tr><td>\u2705 Legally admissible<\/td><td>Accepted by customs, import authorities, and food safety regulators worldwide<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What it does NOT include:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u274c Batch-specific identification (it covers a production period, not a single batch)<\/li>\n\n\n\n<li>\u274c Hourly\/shift-level production monitoring data<\/li>\n\n\n\n<li>\u274c In-line metal detection verification<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Third-Party Report = The independent audit.<\/strong> It says &#8220;an accredited lab confirms our product meets international food safety standards.&#8221;<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">How They Work Together<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Think of it as a <strong>three-layer quality assurance system<\/strong>:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Layer 1: Specification Sheet (Spec)\n         \u2193 Defines the target\nLayer 2: COA per batch\n         \u2193 Verifies each batch hits the target\nLayer 3: Third-Party Report (semi-annual)\n         \u2193 Independently confirms the system works<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Your Need<\/th><th>Which Document to Request<\/th><\/tr><\/thead><tbody><tr><td>Product formulation &amp; technical specs<\/td><td>\ud83d\udcc4 <strong>Specification Sheet<\/strong><\/td><\/tr><tr><td>Specific batch quality verification<\/td><td>\ud83d\udcc4 <strong>COA<\/strong> (batch-specific)<\/td><\/tr><tr><td>Customs clearance \/ import compliance<\/td><td>\ud83d\udcc4 <strong>Third-Party Report<\/strong> + <strong>COA<\/strong><\/td><\/tr><tr><td>Supplier qualification \/ audit preparation<\/td><td>\ud83d\udcc4 All three documents<\/td><\/tr><tr><td>Ongoing quality monitoring<\/td><td>\ud83d\udcc4 COA per shipment + Annual Third-Party Report<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Chinese National Standards Reference<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">All three documents are built on the following Chinese national and industry standards:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6807\u51c6<\/th><th>Scope<\/th><\/tr><\/thead><tbody><tr><td><strong>SB\/T 10752-2012<\/strong><\/td><td>Potato Flakes \u2014 product classification, sensory, physicochemical (primary product standard)<\/td><\/tr><tr><td><strong>GB 5009.3<\/strong><\/td><td>Determination of moisture in foods<\/td><\/tr><tr><td><strong>GB 5009.4<\/strong><\/td><td>Determination of ash in foods<\/td><\/tr><tr><td><strong>GB 5009.7<\/strong><\/td><td>Determination of reducing sugar in foods<\/td><\/tr><tr><td><strong>GB 5009.11<\/strong><\/td><td>Determination of total arsenic in foods<\/td><\/tr><tr><td><strong>GB 5009.12<\/strong><\/td><td>Determination of lead in foods<\/td><\/tr><tr><td><strong>GB 5009.15<\/strong><\/td><td>Determination of cadmium in foods<\/td><\/tr><tr><td><strong>GB 5009.17<\/strong><\/td><td>Determination of total mercury in foods<\/td><\/tr><tr><td><strong>GB 5009.34<\/strong><\/td><td>Determination of sulfur dioxide in foods<\/td><\/tr><tr><td><strong>GB 5009.123<\/strong><\/td><td>Determination of chromium in foods<\/td><\/tr><tr><td><strong>GB 4789.2<\/strong><\/td><td>Microbiological examination \u2014 Aerobic plate count<\/td><\/tr><tr><td><strong>GB 4789.3<\/strong><\/td><td>Coliforms count<\/td><\/tr><tr><td><strong>GB 4789.4<\/strong><\/td><td>Salmonella detection<\/td><\/tr><tr><td><strong>GB 4789.10<\/strong><\/td><td>S. aureus detection<\/td><\/tr><tr><td><strong>GB 4789.15<\/strong><\/td><td>Yeast and mold count<\/td><\/tr><tr><td><strong>GB 2763-2021<\/strong><\/td><td>Maximum residue limits for pesticides in food<\/td><\/tr><tr><td><strong>JJF 1070<\/strong><\/td><td>Rules of metrological testing for net quantity of prepackaged goods<\/td><\/tr><tr><td><strong>GB 7718-2011<\/strong><\/td><td>General standard for food labeling<\/td><\/tr><tr><td><strong>GB 23779-2009<\/strong><\/td><td>List of major food allergens<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Document<\/th><th class=\"has-text-align-center\" data-align=\"center\">Who Issues It<\/th><th class=\"has-text-align-center\" data-align=\"center\">How Often<\/th><th>Best For<\/th><\/tr><\/thead><tbody><tr><td><strong>Specification Sheet<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Hongji QC Dept.<\/td><td class=\"has-text-align-center\" data-align=\"center\">Version-controlled (Rev 1.0 \u2192 2.0)<\/td><td>Product evaluation, R&amp;D, formulation design<\/td><\/tr><tr><td><strong>COA<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">Hongji Lab<\/td><td class=\"has-text-align-center\" data-align=\"center\">Every batch<\/td><td>Batch acceptance, order verification<\/td><\/tr><tr><td><strong>Third-Party Report<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">CNAS\/CMA Accredited Lab<\/td><td class=\"has-text-align-center\" data-align=\"center\">Twice per year<\/td><td>Customs clearance, regulatory compliance, audit<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you need any of these documents for your order, please contact our sales team with your batch number or inquiry details. We provide all three as standard support for our global customers.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/zh\/contact\/\">Contact Us \u2192<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. What is the difference between a Specification Sheet and a COA?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The Specification Sheet defines the <strong>target<\/strong> \u2014 it tells you what the product should be (moisture \u2264 9.0%, ash \u2264 4.0%, etc.). The COA tells you what a <strong>specific batch actually is<\/strong> \u2014 the real test results for that batch. Think of the Spec Sheet as the blueprint and the COA as the inspection report for a specific batch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Do you provide a COA with every shipment?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Every single production batch from Hongji Agriculture is issued with a batch-specific, signed Certificate of Analysis before release. You will receive the COA for your batch with your shipment documentation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. How often do you conduct third-party testing?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">We conduct comprehensive third-party testing <strong>twice per year<\/strong> (semi-annual) through a CNAS\/CMA-accredited independent laboratory. This covers all items in the COA plus heavy metals (Pb, As, Cd, Hg, Cr), Salmonella, S. aureus, Yeast &amp; Mold, pesticide residues (GB 2763-2021), and sulfur dioxide residues.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. What heavy metals do you test for?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Our annual and third-party testing covers: Lead (Pb, \u22640.5 mg\/kg), Total Arsenic (As, \u22640.5 mg\/kg), Cadmium (Cd, \u22640.1 mg\/kg), Mercury (Hg, \u22640.02 mg\/kg), and Chromium (Cr, \u22641.0 mg\/kg). Soil heavy metal testing is conducted at our farming bases to ensure raw material safety at the source.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Do you test for pesticide residues?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Pesticide residue testing is conducted annually per GB 2763-2021 (National Food Safety Standard \u2014 Maximum Residue Limits for Pesticides in Food). This is also covered in our semi-annual third-party testing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. What microbiological tests are performed?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Our full microbiological testing panel includes: Total Plate Count (GB 4789.2), Coliforms (GB 4789.3), Salmonella (GB 4789.4), Staphylococcus aureus (GB 4789.10), and Yeast &amp; Mold (GB 4789.15). TPC and Coliforms are tested per batch; Salmonella annually plus third-party semi-annually; S. aureus and Yeast &amp; Mold quarterly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7. Can I request additional testing beyond the standard items?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Depending on your destination country requirements, we can arrange additional testing including E. coli O157, specific pesticide panels, Sudan Red screening, or customer-specific heavy metal limits. Please discuss your requirements with our sales team.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8. Are your products allergen-free?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Our potato flakes are produced in a facility that does not use any of the 8 major food allergens as defined by GB 23779-2009 and GB 7718-2011. This includes cereals containing gluten, crustaceans, fish, eggs, peanuts, soybeans, milk\/dairy, and tree nuts. A full allergen declaration is included in our Specification Sheet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">9. What Chinese national standards apply to your potato flakes?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Our primary product standard is <strong>SB\/T 10752-2012<\/strong> (Potato Flakes). All testing methods follow applicable GB (Guobiao\/National) standards. A full list of 18 applicable standards is provided in the reference table above.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">10. Can I get a copy of the third-party test report?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Our semi-annual third-party test reports are available to customers upon request. Contact our sales team with your company information, and we will provide the latest report.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">11. Is the downloadable sample COA an official batch certificate?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. The sample COA available for download is a representative example for reference only. Every production batch has its own unique, signed batch-specific COA. Please contact us with your batch number or order reference to receive the official COA for your shipment.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">12. What is the difference between your batch COA and the third-party report?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Your batch COA is issued by our in-house QC lab and covers the core sensory, physicochemical, and microbiological parameters specific to your batch. The third-party report is issued by an independent accredited lab and covers a broader scope (including heavy metals, pesticide residues, and expanded microbiology) but on a semi-annual basis rather than per batch. They are complementary \u2014 the COA gives you batch-by-batch confidence, while the third-party report provides independent system-level verification.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">13. Do your tests comply with international food safety standards?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Our quality management system is ISO 22000 and HACCP certified. Our testing methods follow Chinese GB standards, which are aligned with international Codex Alimentarius standards. Our third-party reports are issued by CNAS\/CMA-accredited laboratories, and the results are accepted by customs and import authorities in the EU, Japan, South Korea, Southeast Asia, the Middle East, and the Americas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">14. How long do you retain batch samples?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Retention samples for each production batch are stored in our QC laboratory for 24 months from the production date, matching the product&#8217;s shelf life. Samples can be made available for customer reference if requested in advance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">15. Can I visit your factory and QC laboratory?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. We welcome qualified customers to visit our manufacturing facility and QC laboratory in Zhangjiakou, Hebei Province. Please contact our sales team to arrange a visit. We can also arrange virtual factory tours via video call if an in-person visit is not immediately feasible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Understanding Our Quality Documents: Specification Sheet, COA &amp; Third-Party Test Report At Hongji Agriculture, we provide three distinct quality documents to support our customers&#8217; procurement and quality assurance needs. Each serves a different purpose, covers different testing parameters, and follows specific Chinese national standards. This guide explains what each document is, what it includes, and&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"disable","_kad_post_title":"hide","_kad_post_layout":"normal","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-269","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/hjpotatoflakes.com\/zh\/wp-json\/wp\/v2\/pages\/269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hjpotatoflakes.com\/zh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hjpotatoflakes.com\/zh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hjpotatoflakes.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hjpotatoflakes.com\/zh\/wp-json\/wp\/v2\/comments?post=269"}],"version-history":[{"count":0,"href":"https:\/\/hjpotatoflakes.com\/zh\/wp-json\/wp\/v2\/pages\/269\/revisions"}],"wp:attachment":[{"href":"https:\/\/hjpotatoflakes.com\/zh\/wp-json\/wp\/v2\/media?parent=269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}