National Accreditation Board for Testing and Calibration Laboratories

(A Constituent Board of Quality Council of India)

Temporary Site Laboratories Testing Aggregates and Concrete in Building Projects

About Scheme

Civil engineering projects have temporary site testing facilities for the testing of building materials such as fine aggregates, coarse aggregates, and concrete cubes at construction sites. Testing of all these building materials is normally being done at temporary construction sites which is required across the construction industry in which the project size is more than 50,000 Sq.ft area (Constructed area). Site testing laboratory which is having area of 50,000 sq. ft or more can apply for this recognition program.

To ensure the quality and competency of the temporary site testing laboratories, NABL has launched a recognition scheme for such laboratories. This recognition scheme will give confidence in the test result/report issued by temporary site testing laboratories, which is very much necessary to ensure the quality of materials used for building construction. The scheme is applicable only to temporary site testing facilities. Mobile testing facilities are not included in this scheme at present.

This scheme is voluntary and an independent quality assurance scheme, which is not covered under APAC & ILAC MRA.

The competency of the temporary site testing laboratory will be determined through the results of the onsite assessment (including test witness), participation in proficiency testing program (PT), and records in accordance with this specific criteria.

The temporary site testing laboratory will get recognition for the project duration (however it will be maximum of 5 years). The starting date of the project will be the commencement certificate from the authority and end date will be getting the occupancy certificate from the authority. The onsite surveillance will be conducted in every 10 months & before 12 months. In case of shorter project duration surveillance will be conducted in 6 months. The Unannounced assessment may be conducted during the recognition period.

This recognition scheme is developed for the testing of the following basic building materials at the construction site, with the defined test parameters for the following materials.
  1. Fine Aggregates
  2. Coarse Aggregates
  3. Concrete