Passed 4-Point Inspection? What the Per-Roll Report Must Show First

A certificate that says a cloth passed 4-point inspection is a conclusion, and conclusions are not measurements. Before you accept the phrase, ask the mill for the per-roll inspection sheets behind it. What to look for in a 4-point fabric inspection report comes down to a short list: every roll identified by number, lot and purchase order; actual measured length and usable width; a defect log with positions, sizes and point classes; the penalty points calculation shown in full and converted to points per 100 square yards or square metres; and a pass or fail decision for each roll against the limit named in your own purchase specification. If those pages exist and the arithmetic reproduces, the certificate means something. If they do not, the phrase describes an intention, not your cloth.

Why a Pass Phrase Cannot Carry the Whole Decision

The 4-point system is a way of scoring visible faults, not a promise about them. An inspector runs the cloth across a frame, measures every defect, assigns one to four penalty points according to its size, and totals the damage for the roll. Point systems of this kind have anchored fabric inspection in weaving mills for decades, and ASTM D5430 is the version most buyers name when they write the method into a specification. The standard tells the inspector how to grade. It does not know your end use, your tolerance for faults, or what the cloth must survive in wear, so it cannot tell anyone what counts as a pass.

That verdict hides four separate decisions inside two words. Somebody chose a numerical limit. Somebody chose the basis on which points are counted, usually points per 100 square yards or per 100 square metres. Somebody decided whether every roll was inspected or only a sample of them. And somebody disposed of the rolls that missed the cut, whether they were downgraded, reworked, or quietly folded back into the shipment. A certificate that stays silent on all four has told you nothing you can hold the mill to later, which is why the sheet behind it matters more than the stamp on it.

The Fields Every Roll’s Page Must Carry

When the sheets arrive, read them as records rather than as paperwork that travelled with the goods. The requirements of a 4-point system fabric inspection report are not exotic; they are the fields any auditor would want in order to trace a verdict back to one physical roll of cloth. Each page should identify the roll without guesswork, measure it honestly, log every fault with a position, show the working, and end in an unambiguous result.

Identification comes first, because a report that cannot be tied to a roll is decoration. Look for the mill’s article or style number, the colour and dye lot, the individual roll number, your purchase order, the inspection date, and the name or shift of the inspector who graded the cloth.

• Measured dimensions: the length on the ticket and the length actually measured at the frame, the usable width taken inside the selvedges rather than the nominal width, and the net weight if you buy by weight.
• Defect entries: a code or description for each fault, its position in metres or yards from the start of the roll, its measured size, the points charged, and whether it was flagged on the cloth so your people can find it.
• Splices and joins: how many there are and where they sit, because a join converts metres you paid for into a line on a map.
• Method and conditions: the grading standard named with its version, the light source and inspection speed, whether the cloth was graded before or after finishing, and whether coverage was 100 percent of rolls or a stated sampling plan.
• Sign-off: who inspected, who approved, and a per-roll result of pass, fail or seconds against a named limit.

Shade deserves a sentence of its own even though it is not part of the point count. Roll-to-roll shade separation decides how your cutting room sequences the shipment, so a useful page records the shade lot or band alongside the roll number instead of leaving the order to be discovered after the cloth is on the table.

How to Read a 4-Point Inspection Report for Fabric

Reading the report means rebuilding its arithmetic, not admiring its totals. The penalty points calculation belongs on the page with every input visible. Working in yards and inches, points per 100 square yards equal the roll’s total penalty points, multiplied by 3,600, divided by the inspected length in yards times the usable width in inches. Working in metric, the score per 100 square metres comes from the total points multiplied by 10,000, divided by the length in metres times the width in centimetres. The sheet must say which basis it used, because the two numbers are not interchangeable and a wide cloth scored on the wrong width flatters itself.

Suppose a page lists thirty raw penalty points for a roll measured at fifty yards with a usable width of fifty-six inches. The score is thirty times 3,600 divided by 2,800, which is roughly 38.6 points per 100 square yards, a pass against a 40-point limit. If the same thirty points had been divided by a nominal sixty-inch width instead, the page would show 36.0 and the roll would look safer than the cloth deserves. Set the acceptance limit at 37 and the width basis alone decides the roll’s fate. This is why the inputs carry more weight than the verdict printed underneath them.

Two rules inside the method deserve a check as well. No single linear yard may be charged more than 4 points, however many faults crowd into it, so a page that stacks five defects at one metre mark and bills all five has broken the cap. Holes are the other quiet argument. Many specifications charge 4 points for a hole of any size, and some buyers make any hole an automatic rejection of the roll. Whichever rule applies to your order, it is the one the two parties agreed on, not the one the inspector happens to prefer.

Then audit the document itself, because a weak report is usually a lazy one rather than a dishonest one. Treat any of the following as a reason to stop and ask questions:

• The same total appears on every roll, which suggests the sheets were drafted once and copied down the stack.
• Only a lot average is given, with no per-roll pages, because a decent average can conceal one terrible roll.
• The length or width inputs are missing, so the score cannot be reproduced at all.
• The defect log adds up to fewer points than the stated total, or to more.
• The result line says pass without naming the limit it passed.

The Defect Log Doubles as a Cutting Document

A score without positions can only be accepted or refused. A log with positions keeps earning its keep after the invoice is paid. Metre marks beside each fault let your cutting room plan around damage instead of discovering it on the cutting table, and flags at the selvedge make those marks findable when the roll is finally opened. Splice positions do the same job for joins, turning them from hidden losses into facts the planner can route around. A shipment that arrives with a usable defect map is worth more than the same shipment with a bare certificate, even when both carry identical scores.

The measured length on the same page protects the meterage you actually bought. Quantity arguments end quickly when the report shows the frame measurement beside the ticket figure, and they never really start when the definition of delivered length was fixed before production. The buyer who can point to a per-roll measured length is arguing from the mill’s own record, which is exactly the position you want to be in when rolls come up short.

The same log strengthens your hand in a claim. When a fault surfaces in finished garments, the position recorded at the mill lets you match the panel back to the roll and the roll back to the sheet, which turns a disagreement about quality into a checkable line item. Without positions, a claim rests on memory; with them, it rests on records both sides can trace.

Write the Acceptance Rule Into the Order

None of this works if the limit lives only in the mill’s habits. Commercial conventions do exist, and a ceiling of 40 points per 100 square yards for first quality is a common default in the trade, with stricter buyers working to lower numbers for finer goods. The binding figure is still the one written into your purchase specification for your cloth and your end use, stated per roll rather than per lot, and paired with the reject rules that matter to you: no holes, no full-width faults, no running defects beyond an agreed length, and a named outcome for rolls that fail, whether they are replaced, downgraded to seconds, or credited.

Coverage needs stating too. If the mill inspected every roll, the summary should say so; if it sampled, the plan and its size belong on the page. Keep the 4-point result in its lane as well, because it grades visible faults only, so shade continuity, weight, shrinkage and colour fastness need their own tests and their own reports. A tidy way to hold all of this together is a report-format annex to the order, naming the grading standard, the point classes, the width basis, the per-roll layout and the sign-off, so the certificate references sheets instead of replacing them. Before the next purchase order, it also pays to audit the mill’s inspection setup itself rather than its output, which tells you things a sample box never will.

When the Certificate and the Cloth Disagree

Acceptance does not end at the paperwork. When the rolls arrive, re-grade two or three of them against the mill’s pages and compare totals. Small differences are normal, because grading involves judgment at the frame. A consistent gap, with your counts running higher, says the mill grades loosely or the sheets were written after the fact, and either way the number on the certificate is not a number you can plan around. Third-party inspection is the usual next step where the stakes justify it, and the mill’s own sheets make that inspection faster, because the third party knows exactly what to re-check.

Ask for missing pages in writing, tied to the specific rolls you re-inspected, and see what comes back. A mill that keeps roll-level records with reproducible arithmetic has nothing to fear from the request and will usually send the files within days. A mill that cannot produce them has handed you the real finding, which is that the certificate was a claim and the next order should be conditional on the report format you specified. The phrase passed 4-point inspection starts to carry information only when the pages exist, the arithmetic reproduces, every roll sits under your limit, and the dispositions match the shipment in front of you.