Material piles prepared for Weighing, Sampling and Moisture Determination supervision

Services

WSMD Supervision

Independent WSMD supervision for settlement-critical weighing, representative sampling and moisture determination of metals and metal-bearing materials.

Why WSMD Supervision Matters for Settlement

Settlement depends on knowing how much material was delivered and what quality it has. If the recorded weight, representative sample or moisture result is wrong, the payable quantity or value may also be wrong. Independent supervision helps identify problems while the operation is taking place and provides a clear record if the results are questioned later.

Especta's Role in WSMD Supervision

Especta follows the agreed WSMD procedure from material receipt and weighing through sampling, moisture determination and, where applicable, sample preparation and final sample distribution. Our surveyors are present at the relevant stages to supervise the operation, independently verify key results and maintain a clear record of the determinations made.

  • Receipt and Weighing

    Material identification and weighing operations are supervised, with recorded weights checked against the observed operation and available documentation.

  • Sampling

    Sampling procedures and increment collection are supervised to verify that the agreed sampling procedure is followed and that representative samples are obtained.

  • Moisture Determination

    Moisture determination is supervised and the recorded results are independently checked, including recalculation of the corresponding dry weights where applicable.

  • Sample Preparation and Mass Balance

    When included in the agreed scope, Especta supervises sample reduction and preparation and verifies the related mass-balance calculations.

  • Final Samples and Custody

    Final samples are checked for identification, sealing and distribution, with relevant custody transfers recorded.

  • Verification and Reporting

    Key figures, calculations, observations and any deviations identified during the supervised process are documented in the final survey report.

Upcoming operation

Contact Especta before settlement-critical work begins.

Provide the material, location, operation date and required scope so Especta can review availability.

Discuss an upcoming operation