GIFSQ Tools · Module 12 — Sensory · Tool 233 of 500
Generate distinct three-digit sample codes from a seed: deterministic, reproducible, and free of repeats for up to 900 samples.
Try sample values — fills the form with the worked example below.
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First code
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Last code
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Codes generated
Equation: Code i = 100 + ((seed + i × 137) mod 900), for i = 0 … n − 1; 137 shares no factor with 900, so all codes are distinct.
Method: ISO 6658:2017 sensory methodology — three-digit random codes to blind samples; codes 100–999.
Assumptions: Seed is a whole number of zero or more; at most 900 distinct three-digit codes exist.
Limitations: Codes are deterministic from the seed — change the seed for a new study so codes do not repeat across studies.
Rounding: Codes are whole numbers from 100 to 999.
This is a calculation aid, not a laboratory report — confirm against your accredited method before citing a value.
Method: ISO 6658:2017 sensory methodology — three-digit random codes to blind samples; codes 100–999.
Assumptions: Seed is a whole number of zero or more; at most 900 distinct three-digit codes exist.
Limitations: Codes are deterministic from the seed — change the seed for a new study so codes do not repeat across studies.
Rounding: Codes are whole numbers from 100 to 999.
This is a calculation aid, not a laboratory report — confirm against your accredited method before citing a value.
Worked example: Seed 42, 3 codes: 142, 279, 416.
Enter values above to see results.
Tool 233 of 500 — GIFSQ
