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Proficiency Testing Programs – PTP

These are interlaboratory studies used as external evaluation tools and also as part of the process to ensure the reliability of measurements and analytical results produced in laboratories.

Participation in the PTP is one of the requirements to obtain and maintain recognition in the ABNT NBR ISO/IEC 17025 accreditation competency, in addition to enabling the identification of deviations, detection of problems with measurements, comparison of results and evaluation of individual performance. Adding value to quality control, enabling the taking of corrective or preventive actions and generating greater assertiveness and confidence for customers.

ProvEP CCB, the sector responsible for Proficiency Testing Programs, is accredited by Cgcre – Inmetro in the area of ​​civil construction according to ABNT NBR ISO 17043:2024, and aims to develop and boost the civil construction sector, coordinating interlaboratory studies since 2000.

Inmetro Accreditation: PEP 0023 Eptis

The Proficiency Testing Programs promoted by ProvEP CCB are:

  • Ceramic Tile PTP: in accordance with ABNT NBR ISO 10545 and ABNT NBR 16919 standards;
  • PTP for Adhesive Mortars: in accordance with ABNT NBR 14081 standard;
  • Bodyguards PTP: in accordance with ABNT NBR 14718 standard;
  • Concrete Tile PTP: in accordance with ABNT NBR 13858 standard;
  • Filed Acoustics PTP: in accordance with ABNT NBR ISO 16283 and ABNT NBR ISO 717 standards;
  • Adherences PTP: in accordance with ABNT NBR 13753, 13754, 13755, 13528-2 standards

To receive more information about the Proficiency Tests organized by ProvEP CCB, send an email to pep@ccb.org.br .

Ceramic Tiles PTP

Next round: 8th Ceramic Tile Proficiency Testing Program

Expected start: February 2026.

Developed in accordance with ABNT NBR 16919 – Determination of the coefficient of friction and the following parts of ABNT NBR ISO 10545:

  • Part 2: Determination of surface quality and determination of dimensions;
  • Part 3: Determination of water absorption;
  • Part 4: Determination of modulus of rupture and breaking strength;
  • Part 6: Determination of resistance to deep abrasion for unglazed tiles;
  • Part 7: Determination of resistance to surface abrasion for glazed tiles;
  • Part 10: Determination of moisture expansion;
  • Part 11: Determination of crazing resistance for glazed tiles;
  • Part 13: Determination of chemical resistance;
  • Part 14: Determination of resistance to stain .

Express your interest by clicking here!

PTP for Bodyguards

The coordination of the Bodyguard Proficiency Testing Program is carried out by ProvEP CCB in partnership with the SIBRATEC Housing Performance Network.

Next Round: 3nd Bodyguard Proficiency Testing Program

Expected Star: July 2026

Developed in accordance with ABNT 14718:

  • Annex A: Determination of horizontal static force;
  • Annex B: Determination of vertical static force;
  • Annex C: Determination of impact resistance.

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Concrete Tile PTP

Next Round: 11th Concrete Tile Proficiency Testing Program

Expected Start: 2027

Developed in accordance with ABNT 13858-2 standard:

  • Annex A – Test method for checking warpage;
  • Annex B – Test method for determining water absorption and dry weight of tiles per square meter of usable area;
  • Annex C – Test method for verifying impermeability;
  • Annex D – Test method for determining the flexural breaking load;
  • Annex E – Procedure for determining squareness and dimensional analysis;
  • Annex F – Test method for determining the “gap”;
  • Annex G – Test method for checking the watertightness of the tile panel;
  • Item 6 – Identification;
  • Item 4.2 – Visual aspects.

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Adherence PTP

Next round: 1st Adherence Proficiency Testing Program

 Expected start date: January 2026

Developed in accordance with ABNT NBR 13753, 13754, 13755 e 13528-2

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Field Acoustics PTP

Next round: 4rd Field Acoustics Proficiency Test Program

Expected Start: 2027

Developed in accordance with ABNT NBR ISO 16283 parts 1 (Airborne Sound Insulation), 2 (Impact Sound Insulation)  and 3 (Facade Sound Insulation); ABNT NBR ISO 3382-2

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PTP for Adhesive Mortars

Next round: 24th Adhesive Mortar Proficiency Testing Program

Expected start: March 2026.

Developed in accordance with ABNT 14081:

  • Part 3: Determining of the open time;
  • Part 4: Determination of the bond tensile strength;
  • Part 5: Determination of the slip.

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Complaints and Appeals

Complaints and appeals can be submitted via email, website form, telephone or in person.

For complaints, upon receipt, ProvEP CCB assesses admissibility, analyzes evidence, hears those involved and documents the conclusions.

The complainant receives confirmation of receipt and, subsequently, the response with decision and justification.

For appeals, ProvEP CCB assesses the original data, evaluation criteria, participant justifications and issues the opinion.

The appeal decision is communicated to the appellant, with technical justification.

Decisions are prepared, analyzed and/or approved by people who are not involved with the subject of the complaint or appeal in question.

The total response period is 30 days.

The information is treated confidentially and does not result in any discriminatory actions.

To make a complaint or appeal, fill out the form (click here). If you prefer, send an email to pep@ccb.org.br or contact us by phone (19) 3545-9090.