Close Video
 

Services

lab-services-titlejpeg

Filter Preparation

Filter preparation includes pre- and post-weighing of occupational hygiene sample filters in accordance with GME 16/2/3/2/3, “Guidelines for the gravimetric sampling of airborne particulates for risk assessment in terms of the Occupational Diseases in Mines and Works Act No 78 of 1973”.  All filters are issued with a unique BBE Laboratory number in addition to a client specific number, should it be required.  The relevant information is captured in a 2D barcode which is used to track the filter.

BBE Laboratory can supply the following filters on a regular basis:

  • MCE Ø25 mm 0.8 µm
  • MCE Ø37 mm 0.8 µm
  • PVC Ø25 mm 5.0 µm
  • PVC Ø37 mm 5.0 µm

Other filter types and sizes can also be supplied, please contact us to make special arrangements.

Contact Us

Respirable Alpha Quartz Analysis by X-ray Diffraction

Filters are analysed for respirable alpha quartz content by direct on X-ray Diffraction [XRD] according to Method MDHS 101, “Crystalline silica in respirable airborne dusts – Direct-on-filter analysis by infrared spectroscopy and X-ray diffraction”.

A state of the art Bruker D4 Endevour automated 64 loader X-Ray analyser is used to ensure fast turnaround times.

NIST SRM 1878a is used to prepare calibrations filters.

Respirable Alpha Quartz Analysis by Infrared Spectroscopy

Alpha quartz content of filters is determined by preparing potassium bromide [KBr] pellets and analysing the pellets by Fourier Transform Infra-Red [FT-IR] spectroscopy according to NIOSH 7602, “Silica, crystalline by IR [KBr pellet]”.

BBE Laboratory analyses client prepared KBr pellets or can prepare, press and analyse pellets from supplied filters according to NIOSH 7602, “Silica, crystalline by IR [KBr pellet]”.  KBr pellets are pressed using an automated press to ensure quality and to speed up turn around time.

Direct-on-filter respirable alpha quartz content determination can also be conducted by FT-IR spectroscopy according to Method MDHS 101, “Crystalline silica in respirable airborne dusts – Direct-on-filter analysis by infrared spectroscopy and X-ray diffraction”.

Please contact us to discuss your requirements. We can issue no-obligation quotations once we have discussed your needs and can offer two levels of service “urgent” and “normal”. We also offer preferential rates for longer term analysis contracts.

NIST SRM 1878a is used to prepare calibrations filters.

Support Services

With over 20 years’ experience in the field of occupational hygiene, with specific reference to respirable airborne pollutants, BBE Laboratory can assist with the following support services:

  1. Compilation of periodic reports on respirable pollutant exposure results for regulatory requirements.
  2. Development of an airborne pollutant monitoring strategy to comply with current and potential future regulations.
  3. Assist with the auditing of implemented airborne pollutant monitoring and reporting programmes.

Please contact us to discuss your requirements. We can issue no-obligation quotations once we have discussed your needs and can offer two levels of service “urgent” and “normal”. We also offer preferential rates for longer term contracts.