Checked the CDC website at www.cdc.gov for colloidal silver (nothing), and silver chloride, and found 4 documents, as follows: (the information was technical beyond my understanding, but perhaps will help someone here.) suzy CDC Search Results List
<<A HREF="http://search.cdc.gov/search97/doc/iqptips/inettips.htm";><Search Tips</A> <> Documents bearing this logo are in Portable Document Format (PDF) and <require the <A HREF="http://www.adobe.com/";><Adobe Acrobat Reader</A> Your query silver chloride matched 4 documents. 1 0.80 <<A HREF="http://www.cdc.gov/niosh/nmam/pdfs/7506.pdf";><http://www.cdc.gov/niosh/nmam/pdfs/7506.pdf</A> 7506 Summary: BORON CARBIDE: METHOD 7506, Issue 2, dated 15 August 1994 - Page 2 of 7 REAGENTS: 1. Boron carbide, ACS grade, <10- Ám particle size. 2. Bulk sampler: PVC membrane filter, 37- mm, 5- Ám pore size in two- piece filter cassette. 3. Sampling pumps: HD cyc <> 33914 bytes, updated 06-18-1999 2 0.77 <<A HREF="http://www.cdc.gov/niosh/nmam/pdfs/7500.pdf";><http://www.cdc.gov/niosh/nmam/pdfs/7500.pdf</A> [PFP#982371182] Summary: SILICA, CRYSTALLINE, by XRD: METHOD 7500, Issue 3, dated 15 January 1998 - Page 2 of 8 NIOSH Manual of Analytical Methods (NMAM), Fourth Edition REAGENTS: 1. Silica Standards. 2. Area air sampler: PVC membrane filter, 37- mm diameter, 5- Ám pore size; t <> 50865 bytes, updated 06-18-1999 3 0.77 <<A HREF="http://www.cdc.gov/niosh/nmam/pdfs/5029.pdf";><http://www.cdc.gov/niosh/nmam/pdfs/5029.pdf</A> 5029 Summary: 4,4'- METHYLENEDIANILINE: METHOD 5029, Issue 2, dated 15 August 1994 - Page 2 of 5 REAGENTS: 1. 4,4'- Methylenedianiline (MDA),* reagent grade. NOTE: Prepare filter by adding 0.5 mL 0.26 N sulfuric acid to glass fiber filter on a glass tray. MDA was sp <> 25659 bytes, updated 06-18-1999 4 0.77 <<A HREF="http://www.cdc.gov/niosh/nmam/pdfs/2015.pdf";><http://www.cdc.gov/niosh/nmam/pdfs/2015.pdf</A> 2015 Summary: CHLOROACETALDEHYDE: METHOD 2015, Issue 1, dated 15 August 1994 - Page 2 of 4 REAGENTS: 1. Chloroacetaldehyde*, ~50% (w/ w) solution in water. 7. Silver nitrate solution, 0.100 N. Accurately weigh 16.987g silver nitrate and dilute to 1 L with deionized d <> 32803 bytes, updated 06-18-1999 </HTML>
