Bunker Dispute - Sample Test Variance

Acceptable variance between BDN quality and retained-sample laboratory result - thresholds for commercial challenge.

BunkerDisputeSample

Parameter in disputeBDN valueSample test value

Absolute diff: 0.030

ISO 4259 tolerance: 0.020

Status: Outside tolerance - valid dispute

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

|V_{test} - V_{BDN}| \leq \text{ISO 4259 tolerance}

Symbol	Meaning	Unit
$V$	Parameter value

Source: ISO 4259 / ISO 8217:2017

In short

Acceptable variance between BDN quality and retained-sample laboratory result - thresholds for commercial challenge.

Learn the theory Bunker Quality and ISO 8217 Marine Fuel Standards