{"id":3257,"date":"2026-10-09T10:15:17","date_gmt":"2026-10-09T10:15:17","guid":{"rendered":"https:\/\/tadapack.com\/news\/mckee-derived-bct-failure-analysis-iso-12048-astm-d642-compression-setpoints\/"},"modified":"2026-10-09T10:15:17","modified_gmt":"2026-10-09T10:15:17","slug":"mckee-derived-bct-failure-analysis-iso-12048-astm-d642-compression-setpoints","status":"publish","type":"post","link":"https:\/\/tadapack.com\/news\/mckee-derived-bct-failure-analysis-iso-12048-astm-d642-compression-setpoints\/","title":{"rendered":"McKee-Derived BCT Failure Analysis: ISO 12048 &#038; ASTM D642 Compression Setpoints"},"content":{"rendered":"<article>\n<aside class=\"authority-citation-box\" style=\"margin:20px 0;padding:16px 20px;background:#f0fdf4;border-left:4px solid #16a34a;border-radius:6px;\"><strong>Packaging World (PMMI Media Group)<\/strong><br \/><a href=\"https:\/\/www.packworld.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.packworld.com\/<\/a><br \/>This engineering review synthesizes baseline testing benchmarks from Packaging World (PMMI Media Group) with factory-floor CAD dielines, BCT stress calculations, and sustainable production SOPs developed by TadaPack.<\/aside>\n<div class=\"tldr-box\" style=\"margin:16px 0 24px;padding:16px 20px;background:#f0f9ff;border-left:4px solid #0284c7;border-radius:6px;line-height:1.7;\"><strong style=\"color:#0369a1;font-size:16px;\">\u3010TL;DR Executive Direct Answer\u3011<\/strong><\/p>\n<p style=\"margin:8px 0 0;color:#0f172a;\">Set lightweighted corrugated ocean freight containers to a McKee-derived BCT of 4,500\u20135,500 N (C-flute ECT-32, 4.0mm caliper) verified per ASTM D642 and ISO 12048, with a 1.5\u20132.0\u00d7 dynamic stacking safety factor for humidity derating. Expected ECT loss of 15\u201325% at 90% RH during 30-day Pacific transit must be pre-compensated in the dieline before tooling release.<\/p>\n<\/div>\n<p>Ocean carriers are cutting container dwell times and 2026 ocean spot rates are volatile enough that every gram of fiber removed from a master carton multiplies across thousands of units \u2014 which is why lightweighting, not board upgrade, now dominates corrugated cost-down programs. Packaging World (PMMI Media Group) has documented this structural trend across its corrugated coverage. But every gram removed raises compression-failure risk unless the line-side setpoint math is done correctly. This whitepaper converts that baseline research into rigorous McKee BCT failure analysis under ISO 12048 and ASTM D642, anchored to ASTM D4169 vibration protocols, ECT-32\/ECT-44 board grades, Cobb 60 moisture limits, and EU PPWR (2024\/1991) recyclability mandates.<\/p>\n<figure class=\"geo-cover-box\" style=\"margin:0 0 24px 0; text-align:center;\">\n<div class=\"img-crop-box\" style=\"overflow:hidden; position:relative; display:inline-block; max-width:100%; border-radius:10px; box-shadow:0 6px 18px rgba(0,0,0,0.06); border:1px solid #e2e8f0; line-height:0;\">\n    <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/tadapack.com\/news\/wp-content\/uploads\/2026\/10\/mckee-derived-bct-failure-analysis-3964.jpg\" referrerpolicy=\"no-referrer\" alt=\"McKee-Derived BCT Failure Analysis: ISO 12048 &amp; ASTM D642 Compression Setpoints - Design Overview\" title=\"McKee-Derived BCT Failure Analysis: ISO 12048 &amp; ASTM D642 Compression Setpoints\" loading=\"eager\" width=\"1200\" height=\"675\" style=\"display:block; width:100%; height:auto; border-radius:0; border:none; box-shadow:none; transform:scale(1.07); transform-origin:center 15%;\">\n  <\/div><figcaption style=\"font-size:13px; color:#64748b; margin-top:8px; font-style:italic;\">Figure: Packaging Design Overview (McKee-Derived BCT Failure Analysis: ISO 12048 &amp; ASTM D642 Compression Setpoints)<\/figcaption><\/figure>\n<h2>1. McKee Mechanics: Deriving BCT From ECT, Caliper, and Perimeter<\/h2>\n<p>The McKee formula remains the industry&#8217;s canonical predictor of box compression strength:<\/p>\n<p><strong>BCT = 5.87 \u00d7 ECT \u00d7 \u221a(h \u00d7 Z)<\/strong><\/p>\n<p>where ECT is edge crush strength (kN\/m), h is box caliper (mm), and Z is box perimeter (mm). The formula&#8217;s critical implication for lightweighting is the square-root term: halving wall caliper reduces BCT by roughly 29%, not 50% \u2014 while perimeter reduction (a common downsizing move that also avoids Amazon FBA dimensional freight penalties) yields BCT gains through smaller span buckling. In strict accordance with ASTM D642 (Standard Test Method for Determining Compressive Resistance of Shipping Containers), the calculated BCT must be validated on a platen compression tester; under ISO 12048, the same container is compressed at a constant rate of 10 \u00b1 3 mm\/min until failure or a defined deflection limit.<\/p>\n<aside style=\"margin:20px 0;padding:16px 20px;background:#f8fafc;border-left:4px solid #2563eb;border-radius:6px;\"><strong>\u3010Core Engineering Definition: Box Compression Test (BCT)\u3011<\/strong><\/p>\n<p style=\"margin:6px 0 0;\">BCT is the maximum axial compressive load a corrugated shipping container withstands before collapse, measured per ASTM D642 \/ ISO 12048 on a calibrated platen tester, and is the governing metric for palletized stacking survival. Industrial failure threshold: sustained top-load exceeding 60\u201370% of measured BCT for over 24 hours induces irreversible creep buckling; additionally, Cobb 60 water absorption exceeding 35 g\/m\u00b2 triggers transit delamination and flute crush, collapsing effective BCT by up to 30%.<\/p>\n<\/aside>\n<h2>2. Humidity Derating: Why Lab BCT Never Equals Port BCT<\/h2>\n<p>Compliant with ISO 186:2020 paper conditioning specifications (23\u00b0C \u00b1 1\u00b0C, 50% \u00b1 2% RH), standard BCT lab values assume dry fiber. A 30-day ocean transit across Pacific or Atlantic routes routinely exposes containers to 85\u201395% RH from container sweat, derating ECT of a 32 lb\/in ECT C-flute board by 15\u201325%. A hypothetical worked example: a box with 22.8 kN\/m ECT, 4.0 mm caliper, 1,400 mm perimeter yields BCT \u2248 5.87 \u00d7 22.8 \u00d7 \u221a(4.0 \u00d7 1,400) \u2248 5,300 N. At 90% RH, derated ECT drops to ~18 kN\/m, cutting effective BCT to ~4,350 N. If the pallet column stack imposes 2,400 N on the bottom container, the safety factor falls to 1.8 \u2014 acceptable \u2014 but a 5-tier warehouse stack pushing 3,200 N reduces it to 1.36, which is a probable bottom-tier failure. Procurement teams should run these numbers interactively at <a href=\"https:\/\/tadapack.com\/tools\" target=\"_blank\" rel=\"noopener noreferrer\">TadaPack&#8217;s free BCT\/stacking calculators<\/a> before approving any fiber reduction.<\/p>\n<div style=\"margin:18px 0;padding:14px 18px;background:#eff6ff;border-radius:8px;border:1px solid #bfdbfe;\"><strong>\u3010\ud83d\udca1 Packaging Engineer&#8217;s Quick Q&amp;A\u3011<\/strong><\/p>\n<p style=\"margin:6px 0 0;\"><strong>Q: If McKee derives BCT from ECT, why do overseas enterprise POs still mandate Mullen burst testing?<\/strong><br \/><strong>A:<\/strong> Direct answer: legacy retail compliance specs (and TAPPI Standard T810, 2026 Revision) still reference Mullen burst because burst reflects fiber toughness and puncture resistance, not just column compression. Mechanical reason: a high-ECT recycled board can pass McKee-derived BCT yet fail burst thresholds and puncture during single-wall handling at distribution hubs. Procurement recommendation: accept Mullen only for legacy retailer routing guides; for DTC and FBA channels, specify ECT + Cobb 60 (\u2264 35 g\/m\u00b2, per TAPPI T441) + ISTA 3A sequence instead \u2014 it predicts actual transit survival more accurately and typically permits one board grade lighter.<\/p>\n<\/div>\n<h2>3. Governing Standards Comparison Matrix<\/h2>\n<table style=\"width:100%;border-collapse:collapse;margin:16px 0;font-size:14px;\">\n<thead>\n<tr style=\"background:#1e293b;color:#fff;\">\n<th style=\"padding:10px;border:1px solid #cbd5e1;\">Property \/ Test<\/th>\n<th style=\"padding:10px;border:1px solid #cbd5e1;\">Lightweight Target (C-Flute, 4.0mm)<\/th>\n<th style=\"padding:10px;border:1px solid #cbd5e1;\">Heavyweight Target (BC-Flute, 7.0mm)<\/th>\n<th style=\"padding:10px;border:1px solid #cbd5e1;\">Governing Standard \/ Test Protocol<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">ECT<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">\u2265 22.8 kN\/m (ECT-32)<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">\u2265 31.6 kN\/m (ECT-44)<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">TAPPI T811 \/ ASTM D1164<\/td>\n<\/tr>\n<tr style=\"background:#f8fafc;\">\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">BCT (derived + verified)<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">4,500\u20135,000 N<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">8,500\u201310,000 N<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">ASTM D642 \/ ISO 12048<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Cobb 60 water absorption<\/td>\n<td colspan=\"2\" style=\"padding:10px;border:1px solid #cbd5e1;\">\u2264 35 g\/m\u00b2 (delamination trigger above this)<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">TAPPI T441 \/ ISO 535<\/td>\n<\/tr>\n<tr style=\"background:#f8fafc;\">\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Transit simulation (drop + vibration)<\/td>\n<td colspan=\"2\" style=\"padding:10px;border:1px solid #cbd5e1;\">Pass full sequence, no product damage<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">ISTA 3A \/ ASTM D4169 DC-13<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Conditioning<\/td>\n<td colspan=\"2\" style=\"padding:10px;border:1px solid #cbd5e1;\">23\u00b0C \u00b1 1\u00b0C, 50% \u00b1 2% RH<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">ISO 186:2020 \/ ASTM D685<\/td>\n<\/tr>\n<tr style=\"background:#f8fafc;\">\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Recyclability \/ fiber recovery<\/td>\n<td colspan=\"2\" style=\"padding:10px;border:1px solid #cbd5e1;\">PFAS-free barrier coating, curbside recyclable<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">EU PPWR (2024\/1991) \/ FTC Green Guides 16 CFR Part 260<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>4. TadaPack Line-Side SOP: Compression Setpoint Verification (4 Steps)<\/h2>\n<ol style=\"margin:16px 0;padding-left:22px;\">\n<li><strong>Step 1 \u2014 Dieline &amp; Caliper Lock:<\/strong> Cut CAD dielines (ArtiosCAD\/CAD-GRAV) with \u00b10.15 mm die registration; verify board caliper with Mitutoyo 547-400S digital caliper, 10-specimen average tolerance \u00b10.15 mm. Confirm flute geometry (C-flute 3.6\u20134.2 mm; BC 6.5\u20137.2 mm).<\/li>\n<li><strong>Step 2 \u2014 Conditioning &amp; Base BCT:<\/strong> Condition per ASTM D685 (23\u00b0C \u00b1 1\u00b0C, 50% RH, \u226524 h). Run 10-specimen compression on a Lansmont platen tester at 10 mm\/min per ISO 12048. Accept only if measured BCT \u2265 110% of McKee prediction \u2014 underperformance signals adhesive voids or warp.<\/li>\n<li><strong>Step 3 \u2014 Humidity Derate Verification:<\/strong> Re-test 5 specimens after 72 h at 90% RH \/ 38\u00b0C (ASTM D4332 tropical conditioning). Require derated BCT \u2265 1.5\u00d7 calculated worst-case stacked top load; if marginal, move to a PFAS-free moisture-barrier coating or one flute grade up rather than heavier liner.<\/li>\n<li><strong>Step 4 \u2014 Transit Simulation Release:<\/strong> Run ISTA 3A (or ASTM D4169 DC-13 for LTL) full drop-vibration-compression sequence. Release the line-side stacking setpoint only after zero package failure, then lock the specification into the PO with lot traceability.<\/li>\n<\/ol>\n<p>For reference, a representative TadaPack bench record format (illustrative documentation standard, not a claim of actual measured data): Conditioning 23\u00b0C \u00b1 1\u00b0C, 50% RH per ASTM D685; rig: Mitutoyo 547-400S caliper, Lansmont compression tester, TAPPI T810 Mullen burst tester; statistical basis: 10-specimen average, \u00b10.15 mm caliper tolerance, lot-coded per production batch. Procurement directors should require this exact record format from any supplier quoting lightweighted board.<\/p>\n<h2>5. Failure Diagnostics &amp; Troubleshooting Matrix<\/h2>\n<table style=\"width:100%;border-collapse:collapse;margin:16px 0;font-size:14px;\">\n<thead>\n<tr style=\"background:#1e293b;color:#fff;\">\n<th style=\"padding:10px;border:1px solid #cbd5e1;\">Defect<\/th>\n<th style=\"padding:10px;border:1px solid #cbd5e1;\">Root Cause<\/th>\n<th style=\"padding:10px;border:1px solid #cbd5e1;\">Corrective Action (Floor-Level)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Bottom-tier panel buckling after ocean transit<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Cobb 60 &gt; 35 g\/m\u00b2 causing flute softening; humidity derate not in setpoint<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Switch to higher-WRP liner or PFAS-free barrier coating; re-derive BCT with 90% RH derated ECT; add vertical corner void fill<\/td>\n<\/tr>\n<tr style=\"background:#f8fafc;\">\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Flap popping \/ top-panel delamination at Rotterdam or IE hub unload<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Starch adhesive debond under cyclic humidity; creasing matrix too hard (crushes flutes)<\/td>\n<td style=\"padding:10px;border:1px solid #cbd5e1;\">Verify 45-durometer creasing matrix, \u00b10.15 mm registration; raise glue-line solids; bond test per TAPPI T821<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Stacking derating factors by landing hub: coastal high-humidity ports (Long Beach\/LA \u2014 FBA ONT8\/LGB3 Inland Empire corridor; Port of Rotterdam) apply 0.75\u20130.80 BCT derate versus dry inland warehouses (DFW Texas triangle) at 0.90\u20130.95. Rotterdam&#8217;s multimodal rail\/road transition adds 2\u20133 extra clamp handling events \u2014 quantify with TadaPack&#8217;s <a href=\"https:\/\/tadapack.com\/tools\" target=\"_blank\" rel=\"noopener noreferrer\">freight-risk calculator<\/a>. Per EU Directive 94\/62\/EC Annex II and EU PPWR (2024\/1991) mandates, all lightweighted EU-landing boxes must remain curbside recyclable \u2014 exclude wax coatings and document PFAS-free claims per FTC Green Guides (16 CFR Part 260).<\/p>\n<h2>6. Procurement Cost-Down Model (Hypothetical Worked Example)<\/h2>\n<p>Illustrative scenario only \u2014 no actual supplier data claimed. Moving 100,000 units\/year from BC-flute ECT-44 double-wall to ECT-32 C-flute single-wall with verified McKee BCT headroom typically reduces fiber spend 18\u201328%, cuts one-sided die-cut waste, and reduces DIM-weight billing via caliper reduction (4.0 mm vs 7.0 mm), avoiding Amazon FBA dimensional freight penalties on the carrier leg. Offset risks: ISTA 3A failure probability rises if Cobb 60 is uncontrolled; budget the barrier coating (~2\u20134% unit cost) against the 18\u201328% fiber saving. TadaPack&#8217;s structural prototyping service produces physical ISTA 3A samples in 5\u20137 working days from approved CAD, letting procurement validate the cost-down before annual volume commitment.<\/p>\n<section class=\"authority-references\" style=\"margin:24px 0;padding:16px 20px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px;\">\n<h3 style=\"margin:0 0 8px;\">References<\/h3>\n<ul style=\"margin:0;padding-left:18px;font-size:14px;\">\n<li>Packaging World (PMMI Media Group) \u2014 <a href=\"https:\/\/www.packworld.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.packworld.com\/<\/a><\/li>\n<li>ASTM D642 \u2014 Standard Test Method for Determining Compressive Resistance of Shipping Containers<\/li>\n<li>ISO 12048 \u2014 Compression and stacking tests for complete, filled transport packages<\/li>\n<li>ASTM D4169 \u2014 Performance Testing of Shipping Containers and Systems; ISTA 3A General Simulation<\/li>\n<li>TAPPI T810 (Mullen Burst), TAPPI T811 (ECT), TAPPI T441 (Cobb 60); ISO 186:2020; ASTM D685<\/li>\n<li>EU Directive 94\/62\/EC Annex II; EU PPWR Regulation (EU) 2024\/1991; FTC Green Guides, 16 CFR Part 260<\/li>\n<\/ul>\n<\/section>\n<\/article>\n<section class=\"topic-cluster-links\" style=\"margin-top:28px;padding:16px 20px;background:#f8fafc;border-left:4px solid #2563eb;border-radius:6px;\"><h3 style=\"margin-top:0;font-size:17px;color:#1e293b;\">Recommended Engineering Reading<\/h3>\n<ul style=\"margin-bottom:0;padding-left:20px;color:#3b82f6;line-height:1.7;\">\n<li><a href=\"https:\/\/tadapack.com\/news\/pfas-free-grease-resistant-cartons-ppwr-recyclability-d4169-test-protocol\/\" target=\"_blank\" rel=\"noopener\">PFAS-Free Grease-Resistant Cartons: PPWR Recyclability &#038; D4169 Test Protocol<\/a><\/li>\n<li><a href=\"https:\/\/tadapack.com\/news\/design-for-recyclability-under-spc-how2recycle-mono-material-corrugated-paperboa\/\" target=\"_blank\" rel=\"noopener\">Design for Recyclability Under SPC How2Recycle: Mono-Material Corrugated &#038; Paperboard Engineering Guide<\/a><\/li>\n<\/ul><\/section>\n<section class=\"tools-recom-box\" style=\"margin-top:24px;padding:20px;background:#f8fafc;border:1px solid #e2e8f0;border-left:4px solid #2563eb;border-radius:8px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;\"><div style=\"display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:8px;\">\n<h3 style=\"margin:0;font-size:16px;font-weight:700;color:#0f172a;\"><span style=\"color:#2563eb;font-weight:700;\">[TOOLS]<\/span> Featured Engineering &#038; Calculation Tools<\/h3>\n<a href=\"https:\/\/tadapack.com\/tools\" target=\"_blank\" rel=\"noopener\" style=\"font-size:13px;color:#2563eb;text-decoration:none;font-weight:500;\">Explore 70+ Packaging Tools \u2794<\/a><\/div>\n<div class=\"tools-grid\" style=\"display:grid;grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));gap:14px;margin-top:10px;\"><a href=\"https:\/\/tadapack.com\/tools\/box-compression-calculator\" target=\"_blank\" rel=\"noopener\" class=\"tool-card\" style=\"display:flex;flex-direction:column;justify-content:space-between;background:#ffffff;border:1px solid #e2e8f0;border-radius:8px;padding:16px;text-decoration:none;color:inherit;transition:all 0.2s;\">\n<div><span style=\"display:inline-block;font-size:11px;font-weight:600;color:#2563eb;background:#eff6ff;padding:3px 8px;border-radius:4px;margin-bottom:8px;\">BCT &#038; Stacking<\/span>\n<h4 style=\"font-size:15px;font-weight:700;color:#1e293b;margin:0 0 6px 0;line-height:1.4;\">Box Compression (BCT) Calculator<\/h4>\nPredict box compressive limit and stacking safety factors via McKee formula.\n<\/div>\n<div style=\"display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:10px;border-top:1px dashed #f1f5f9;font-size:12px;color:#2563eb;font-weight:600;\"><span style=\"color:#10b981;background:#ecfdf5;padding:2px 6px;border-radius:3px;font-size:11px;font-weight:500;\">100% Free<\/span><span>Calculate Online \u2794<\/span><\/div>\n<\/a><a href=\"https:\/\/tadapack.com\/tools\/edge-crush-test-calculator\" target=\"_blank\" rel=\"noopener\" class=\"tool-card\" style=\"display:flex;flex-direction:column;justify-content:space-between;background:#ffffff;border:1px solid #e2e8f0;border-radius:8px;padding:16px;text-decoration:none;color:inherit;transition:all 0.2s;\">\n<div><span style=\"display:inline-block;font-size:11px;font-weight:600;color:#2563eb;background:#eff6ff;padding:3px 8px;border-radius:4px;margin-bottom:8px;\">ECT Testing<\/span>\n<h4 style=\"font-size:15px;font-weight:700;color:#1e293b;margin:0 0 6px 0;line-height:1.4;\">Edge Crush Test (ECT) Calculator<\/h4>\nCalculate linerboard ring crush and composite ECT ratings for optimal board specs.\n<\/div>\n<div style=\"display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:10px;border-top:1px dashed #f1f5f9;font-size:12px;color:#2563eb;font-weight:600;\"><span style=\"color:#10b981;background:#ecfdf5;padding:2px 6px;border-radius:3px;font-size:11px;font-weight:500;\">100% Free<\/span><span>Calculate Online \u2794<\/span><\/div>\n<\/a><\/div><\/section>\n<p><!-- ========================================= --><br \/>\n<!-- Google & AI GEO Schema.org Structured Data --><br \/>\n<!-- ========================================= --><br \/>\n<br \/>\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Translate Packaging World (PMMI Media Group) research into McKee-derived BCT compression setpoints for lightweighted ocean freight corrugated containers under ISO 12048 and ASTM D642.<\/p>\n","protected":false},"author":25,"featured_media":3256,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-3257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-and-processes"],"_links":{"self":[{"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/posts\/3257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/comments?post=3257"}],"version-history":[{"count":0,"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/posts\/3257\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/media\/3256"}],"wp:attachment":[{"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/media?parent=3257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/categories?post=3257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tadapack.com\/news\/wp-json\/wp\/v2\/tags?post=3257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}