Asbestos In Bulk Material - Brochure

LabTox SARue des Prés 90 - CH-2503 Biel/BienneCase Postale - CH-2501 Biel/BienneTél. : +41 (0) 32 481 35 80 - Fax : +41 (0) 32 535 35 81 - info@labtox.ch - www.labtox.chHow  do  I  have  to  pack  the  samples  ?The  samples  for  asbestos  analysis  have  to  be  packed  in  two  successive  plas8c   bags.  For   that  purpose  bags  with  a  ziplock©  system  are  suitable  (see  picture  below).Each  sample  has  to  be  labelled  with  a  reference  corresponding  to  the  one  wriAen  on  the  order  form  or  to  the  informa8ons  introduced  on  our  web  portal.How  do  I  have  to  sample  ?Sampling  of  poten8al  asbestos-­-bearing  materials  has  to  be  done  minimizing  dust   forma8on.  It   is  therefore  recommended  to  work  under  wet  condi8ons  by   spraying  soapy  water   on  the  materials  to  be  collected.   As  sampling  is  done  under  wet  condi8ons,  electrical  tools  should  not  be  used  simultaneously  (saws,  rames,  etc.).If   possible,   collect   samples   that   are   already   detached   or   broken.   It   is   usually   riskier   to   sample   in   an  unappropriate  way  than  to  leave  the  materials  as  it  is.It  is  highly  recommended  to  contact  professionals  to  collect  samples  where  asbestos  is  strongly  bonded.Which  quan8ty  do  I  have  to  sample  ?The  minimum  quan8ty   to  sample  depends  on  the  materials.  For  heterogeneous  materials  (false  ceilings,  8le  adhesives,   etc.),   a  sample  of   3   cm   x   3   cm   is  usually   su?cient.   For   manufactured  materials  (?oor   linings,  sealants,   etc.),   samples   can   be   smaller.   However   they   should   measure   at   least   2   cm   x   2   cm   to   be  representa8ve.How  can  I  avoid  contamina8ons  ?A  contamina8on  is  the  uninten8onal  transfer  of  an  asbestos  ?bre  from  one  sample  to  another  one.  This  can  lead  to  false-­-posi8ve  results  in  the  laboratory,  thus  genera8ng  supplementary   costs  to  remove  the  materials  on  the  construc8on  site.   To  avoid  it,   it   is  mandatory   to  clean  the  sampling  tools  between  each  sample.  A  par8cular  care  has  to  be  taken  with  cuAers  because  ?bers  can  enter  those  tools,  thus  contamina8ng  the  next  samples.  It  is  crucial  to  clean  the  cuAers  before  and  aOer  use.Sampling  guide  for  poten8al  asbestos-­-bearing  samples