Compliance
Digital Product Passport: What Ships When, 2026-2029
Digital Product Passport timeline by product group: battery passport 18 Feb 2027, steel 2026, textiles 2027, furniture 2028, plus the 18-24 month rule.
Compliance
Browse compliance articles on SizeMarker Blog
Compliance
mAh to Wh: The Number Your Airline Reads Is Not on the Box
mAh to Wh conversion decides whether a battery flies. The 100 Wh and 160 Wh thresholds, PI 965/966/967, the 30% state-of-charge rule, and the voltage mistake.
Compliance
EI30 vs FD30: Four Markets, Four Fire Door Ratings
EI30 vs FD30 is not the same rating: EI covers integrity and insulation, FD covers integrity only. Four export markets, four systems, one decision tree.
Compliance
STC vs Rw: Why Your 45 dB Window Gets Graded at 39
STC vs Rw sound ratings differ by 1-2 points, but Rw+Ctr can cut 6 dB. What each index measures, which market grades on which, and how to write the acoustic line.
Compliance
Stair Riser and Tread Dimensions: The 3/8-Inch Rule
Stair riser and tread dimensions are capped by two numbers per market, and failed by a third: no riser may differ from another by more than 3/8 inch. Limits for four markets.
Compliance
IP68 vs IP66: Why the Higher Number Can Fail a Hose Test
IP68 vs IP66 is not a ranking: in IEC 60529 the water tests stop being cumulative after 6. What each digit certifies, and what belongs on your spec sheet.
Compliance
Rebar Size Designations: 6 Myths That Ship the Wrong Bar
Rebar size designations decoded: #4 is 12.7 mm not 4 mm, #13 is the same bar, and Grade 60, B500B and HRB400 are three different yield strengths.
Compliance
Plug Type and Voltage by Export Market: What to Label
Plug type and voltage by export market, in one table: 23 markets with voltage, frequency, plug letter and the safety mark each one legally requires.
Compliance
EU Packaging Regulation for Exporters: What Changes in 2026
The EU packaging regulation for exporters applies 12 August 2026. What changes then, what waits until 2030, and the empty-space number most sources get wrong.
Compliance
GPSR Labelling Requirements: 6 Myths Exporters Still Believe
GPSR labelling requirements have applied since 13 December 2024. Six myths still get non-EU sellers listings pulled, and the Article text that settles each.
Compliance
Home Depot Product Image Requirements: 2026 Vendor Traps
Home Depot product image requirements in 2026: 1,000 x 1,000 px minimum, white #FFFFFF background, .jpg only — plus the category traps that reject SKUs.
Compliance
Faire Image Requirements: The 2026 Spec Sheet for Brands
Faire image requirements for 2026: exact pixel sizes, aspect ratios, and background rules for product, feature, and cover images that pass review.