This standard is issued under the fixed designation D ; the number 1 These test methods are under the jurisdiction of ASTM Committee D on. Specification limits in concrete are intended to minimize rebar corrosion Chloride content is needed for evaluation of use as a mix water ASTM D Last previous edition D – 2 Annual Book of ASTM Standards, Vol 4. Signiﬁcance and Use Chloride ion is under regulation in water, and must.
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The LCS must be taken through all of the steps of the analytical method including sample preservation and pretreatment.
The concentration of the IRM should be in the concentration mid-range for the method chosen. NOTE 4—Liquid indicator generally deteriorates to the point that it yields no end-point color after 12 to 18 months of storage. Practice D — 08, these precision and bias data do meet existing requirements for interlaboratory studies of Committee D19 test methods. The concentration range may be extended by dilution of an appropriate aliquot before the addition of the ionic strength adjustor. Richard Omar Ruiz Velasquez Category: Record the millilitres of Hg NO3 2 solution added in each case.
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ASTM D – 12 – Standard Test Methods for Chloride Ion In Water
Search book title Enter keywords for book title search. See Guide D for additional information. Chloride analysis is widely used as a tool for estimating the cycles of concentration, such as in cooling tower applications. It is the responsibility of the analyst to determine the acceptability of this test method for the matrix being analyzed.
Processing waters and pickling solutions used in the food processing industries also require dependable methods of analysis for chloride. Unless otherwise indicated, it is intended that all reagents shall conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society, where such specifications are available. For a specific hazard statement, see Then filter 5d12 solution to remove the precipitate, and dilute to 1 L with water.
Four sample levels were run on three days, and blanks were obtained for the water used. Wait 1 to 2 min and record asrm result.
If sulfite ions are present, add 0. D 5d12 12 D Guide for Spiking into Aqueous Samples. Add 75 mL of concentrated nitric acid HNO3, sp. No items in cart.
Salinidad Quimico – ASTM D – Free Download PDF
No other units of measurement are included in this standard. It is the responsibility of the analyst to assure the validity of this test method for untested matrices. Determine an indicator blank on 50 mL of chloride-free water, applying the same procedure followed for the sample. For ISE, analyze at least three working standards containing concentrations of chloride that bracket the expected sample concentration prior to analysis of samples to calibrate the titration or instrument.
Note that volume corrections are incorporated into the calibration, so that samples analyzed in accordance with Section 28 can be read directly. The spike must produce a concentration in the spiked sample that is 2 to 5 times the analyte concentration in the unspiked sample, or 10 to 50 times the detection limit of the test method, whichever is greater. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Each replicate must be taken through the complete analytical test method including any sample preservation and pretreatment steps. Refer to Sections 14, 21, and 29 for further information. Precision and Bias from 3. Current edition approved June 15, NOTE 7—The normality of the mercuric nitrate solution standard is based on a 2: This solution contains no added chloride, and the potential reading will not be very stable.
Thank you for interesting in our services. Significance and Use Chloride ion is under regulation in waste water, and must, therefore, be measured accurately.
Last previous edition approved in as D — D Terminology Relating to Water. This study should be repeated until the recoveries are within the limits given in sections V512 the concentration of chloride is less than five times the detection limit for the method, a matrix spike duplicate MSD should be used.
Salinidad Quimico – ASTM D512-12
Precision and Bias 6 Remember me for one month. High temperature above Are you sure you want to empty the cart?
Also note that preparation and dilutions of CISA should be made in a well-ventilated area, preferably a hood. NOTE 10—Other types of double junction reference electrodes may be suitable, but supporting data included in this test method reflect only the recommended type. Processing waters and pickling solutions used in the food processing industries also require dependable methods of analysis for chloride.
Type II water was specified at the time of round robin testing of this test method. NOTE 6—The use of indicator modifications and the presence of heavy metal ions can change solution colors without affecting accuracy of the determination. Chloride analysis is widely used as a tool for estimating the cycles of concentration, such as in cooling tower applications.
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ASTM D512 – 12
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