ASTM D7929-14, Standard Guide for Selection of Passive Techniques for Sampling Groundwater Monitoring Wells, ASTM International, West Conshohocken, PA, 2014. http://www.astm.org/Standards/D7929.htm. Accessed 2 January 20115.
Britt, SL, Parker, BL, and Cherry, JA, 2010, A Downhole Passive Sampling System to Avoid Bias and Error in Groundwater Sample Handling, Environmental Science and Technology, 44:4917-4923. http://pubs.acs.org/doi/abs/10.1021/es100828u
ITRC (Interstate Technology and Regulatory Council). 2004. Technical and Regulatory Guidance for Using Polyethylene Diffusion Bag Samplers to Monitor Volatile Organic Compounds in Groundwater. ITRC, Washington, DC. http://www.itrcweb.org/GuidanceDocuments/DSP-3.pdf. Accessed 2 January 2015.