SBS waterproofing membrane how to sample

Answer:

PVC (PVC) waterproofing membrane, chlorinated polyethylene waterproofing membrane: the same manufacturers, specifications are not more than 5000m2 for a group, take any volume, at a distance of 300mm from the end of about 3m as a sample.

Self-adhesive rubber asphalt waterproofing membrane: the same specifications are not more than 5000m2 for a group, each batch of 2m2 Polymer waterproofing membrane adhesive: the same specifications are not more than 5 tons for a group, each batch of 500ml

Chlorinated polyethylene - rubber blends waterproofing membrane: the same specifications are not more than 250 volumes for a group, the appearance of qualified in each batch of 1 volume Asphalt composite tire flexible waterproofing membrane: the same specifications are not more than 1000m2 for a group, each batch of 1 volume

EPDM membrane, rubber waterproofing membrane: the same manufacturers, specifications are not more than 5000m2 for a group, each batch of 2m2 Rubber water stop: the same manufacturers, specifications taken 2m long Modified asphalt polyethylene tire waterproofing membrane: the same specifications are not more than 1000m2 for a group, each batch of 1 volume

SBS modified asphalt waterproofing membrane, APP modified asphalt waterproofing membrane: the same manufacturers, the specifications are not more than 10000m2 for a number of qualified qualified coil, each batch of random 1