ASTM D715-86(2020) pdf download

10-05-2020 comment

ASTM D715-86(2020) pdf free download.Standard Test Methods for Analysis of Barium Sulfate Pigment.
ASTM D715-86(2020) cover the analysis of barium sulfate pigment.
These test methods are used to determine the purity of barium sulfate and to determine the concentration of known impurities. This information is useful to producers and users as an aid in the manufacture of coatings.
Carefully weigh 10 g of the finely ground dry barium sulfate pigment and transfer to a carefully dried 125-mL clear glass separatory funnel of the long narrow type. Add 100 mL of the heavy liquid (sp gr 2.9), stopper, and shake well to liberate any air bubbles that might adhere to the particles, and also to break up all agglomerates. Set the separatory funnel aside and allow to stand in a perpendicular position for 2 h, or for a sufficient time for the particles to rise or sink.
Transfer the filter paper and silica to an ignition cup, dry, and ignite carefully in an electric furnace or over a flame to keep mechanical loss at a minimum. Weigh the floated material, and transfer to a tared platinum dish or crucible. Add 20 mL of hydrofluoric acid (HF) and 3 drops of H2SO4 (1+1), evaporate to dryness, and ignite carefully to expel all fumes. Cool and weigh. The loss in weight represents the free silica in the floated material.
Keywords:analysis of pigment; barium sulfate; barium sulfate content; barium sulfate pigment; ferric oxide in barium sulfate; free silica in barium sulfate.

Download infomation Go to download
Note: If you can share this website on your Facebook,Twitter or others,I will share more.
ASTM D4745-06 pdf download ASTM Standards

ASTM D4745-06 pdf download

ASTM D4745-06 pdf free download.Standard Specification for Filled Compounds of Polytetrafluoroethylene (PTFE) Molding and Extrusion Materials. ASTM D4745-06 covers polytetrafluoroethylene (PTFE) filled molding compounds made with virgin PTFE resins defined in Specification D 4894, except Types I,...
Download Now
ASTM D8151-19 pdf download ASTM Standards

ASTM D8151-19 pdf download

ASTM D8151-19 pdf free download.Standard Practice for Obtaining Rainfall Runoff from Unvegetated Rolled and Hydraulic Erosion Control Products (RECPs and HECPs) for Acute Ecotoxicity Testing. ASTM D8151-19 establishes the guidelines, requirements, and procedures for obtaining rainfall runoff...
Download Now
ASTM D7192-19 pdf download ASTM Standards

ASTM D7192-19 pdf download

ASTM D7192-19 pdf free download.Standard Test Method for High Speed Puncture Properties of Plastic Films Using Load and Displacement Sensors. ASTM D7192-19 covers the determination of puncture properties of plastic films, over a range of test velocities....
Download Now


Anonymous netizen Fill in information