Certification guidelines

Process and equipment validation certification guideline Hot air sterilization tunnel certification/validation guideline Steam sterilization certification/validation guideline Validation and certification of hot air sterilization tunnel Validation and certification of SIP preparation/mobile vessel Validation/revalidation of sterilization cycles in sterilizer by Kaye validator... 

In the second edition, 64 new validation SOPs are added to describe documentation required for sterility assurance, qualification and requalification template reports of major sterile equipments, critical applicable procedures, templates for certification guidelines, media fill procedures, environmental control guidelines, training, and critical environmental performance evaluation procedures. 

Based on the research achievements and with support from an expert committee, BAM s own Laboratory of Landfill Engineering developed the technical specifications for plastic geomembranes and protective layers used to line landfills and contaminated sites, which have been published in certification guidelines (Muller 1995 Muller 2001), where recommendations and guidelines of specialist associations have been referenced as far as possible. In accordance with these specifications only HDPE geomembranes have been certified for landfill applications. 

The Geosynthetic Research Institute (GRI) has published a detailed listing of HDPE geomembrane requirements, GRI Test Method GM13, including quality assurance measures, which, in similar fashion to the BAM certification guidelines, have been developed in close co-operation with... 

According to the requirements of the BAM certification guideline (Muller 1992) and the above mentioned recommendation of the DGGt working group (DVWK 1989), the pressure is increased in steps of 20 kPa or 10 kPa and maintained at each step for 2 min. The arc height is measured at least every 10 seconds when continuous pressure build-up is used, and in the middle of the time intervals between pressure increases when step-wise pressure build-up is applied. The test is carried out until a usu-... 

According to the requirements of die BAM certification guidelines the first measured value has to be determined after one minute, thus fi - to = 1 min or 5 6 s. The measurement is carried out over 1000 hours. Then the ratio of the stress in 1000 hours, o(1000h), to the stress in one minute, o(lmin), is determined. The stress relaxation must be so great that the stress reduction is at least 50 % ... 

The requirement for stress crack resistance of the HDPE material used for geomembranes formulated in this way has been included in the BAM certification guideline for geomembranes in landfill liners (Muller 1992, 1999b) since it is based on genuine long-term tests. This evaluation procedure is very conservative since it assumes that the long-term available residual stress at an imposed deformation initiates a stress crack, in the same way as an imposed durable external stress does (see Sect. 5.4.1). 

In the certification guideline of DIBt and DIN 16726 the resistance to root penetration is tested by iel5dng on the following test procedure. Unglazed clay pots are used as eontainers. The humidity soil layer and the reclamation soil layer consist of field soils. Lupins of the lupinus albus sort are sown in the reclamation soil layer. A sheet of bitumen 85/40 serves as a reference specimen. The test usually takes between 6 to 8 weeks. 

Muller WW (ed) (2001) Certification Guidelines for Plastic Geomembranes Used to Line Landfills and Contaminated Sites. Laboratory of Landfill Engineering, BAM, Berhn... 

Under the procedure of BAM certification of plastic geomembranes for landfill liners, special test methods and requirements have been specified for geomembranes with textured surface. Table A 1.4 in Appendix 1 shows the test procedures and requirements from the certification guidelines (Muller 2001), which aim to secure service lifetimes comparable to that of a smooth geomembrane. To what extent the requirements may be reduced if a shear stress transfer is required for only small or normal service lifetimes (see Table 5.1), is difficult to assess. 

R. Schicketanz concludes that welding can usually be done (with reference to the DVS guideline 2225-4 and BAM certification guidelines) at the weather conditions specified in Table 9.3 without any preventive measures (Schicketanz 1995). Naturally there is a grey area between weather con-... 

Requirements of Protective Layers for Geomembranes in Composite Liner Systems, Certification Guidelines... 

European biochar certificate — guidelines for a sustainable production of biochar. European Biochar Foundation (EBC), 2015. http //dx.doi.Org/10.13140/RG.2.l.4658.7043. Arbaz, Switzerland. 

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