{"id":178550,"date":"2024-10-19T11:06:59","date_gmt":"2024-10-19T11:06:59","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d2791-6\/"},"modified":"2024-10-25T03:23:34","modified_gmt":"2024-10-25T03:23:34","slug":"astm-d2791-6","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d2791-6\/","title":{"rendered":"ASTM-D2791"},"content":{"rendered":"

ASTM D2791-93-Reapproved2001<\/h3>\n

Historical Standard: Standard Test Methods for Continuous Determination of Sodium in Water<\/h4>\n
\n

ASTM D2791<\/h4>\n

Scope<\/strong><\/p>\n

1.1 These test methods cover the continuous determination of trace amounts of sodium in water using an ion-selective electrode and flame photometry. Two test methods are included:<\/p>\n

1.2 Test Method A is based on continuous application of the sodium ion electrode as reported in the technical literature (1-3)<\/b>. It is generally applicable over the range of 0.05 to 10 000 \u00b5g\/L.<\/p>\n

1.3 Test Method B is based on the use of flame photometry. It is most applicable to measurements below 20 \u00b5g\/L. Compared with Test Method A, it is less vulnerable to interference from other monovalent cations at low concentrations and can reach equilibrium with very low sample throughput.<\/p>\n

1.4 The analyst should be aware that adequate collaborative data for precision and bias statements as required by Practice D2777 are not provided. See Sections 16 and 26 for details.<\/p>\n

1.5 The values stated in SI units are to be regarded as standard. The inch-pound units given in parentheses are for information only.<\/p>\n

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.<\/i> For specific hazard statements see Section 6.<\/p>\n

Keywords<\/strong><\/p>\n

continuous sodium measurement; flame photometry; ion-selective electrode; specific ion<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 13.060.50 (Examination of water for chemical substances)<\/p>\n

DOI:<\/strong> 10.1520\/D2791-93R01<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology
Significance and Use
Reagents and Materials <\/td>\n<\/tr>\n
2<\/td>\nHazards
Sampling
Scope
Summary of Test Method
Interferences <\/td>\n<\/tr>\n
3<\/td>\nApparatus
Reagents and Materials
Calibration and Standardization <\/td>\n<\/tr>\n
5<\/td>\nProcedure
Response Time
Precision and Bias
Scope
Summary of Test Method
Interferences <\/td>\n<\/tr>\n
6<\/td>\nApparatus
Reagents and Materials
Sampling
Calibration and Standardization <\/td>\n<\/tr>\n
7<\/td>\nProcedure <\/td>\n<\/tr>\n
8<\/td>\nCalculation
Precision and Bias
Keywords
A1. CONSTRUCTION OF pH ADJUSTMENT SYSTEMS FOR TEST METHOD A
A1.1 Anhydrous Ammonia
A1.2 Morpholine
A1.3 Dimethylamine
A1.4 Diisopropylamine
A1.5 Ammonium Hydroxide or Monoethylamine Solution <\/td>\n<\/tr>\n
9<\/td>\nA2. ELECTRODE RESPONSE IN TEST METHOD A
A2.1 Faulty Electrode Response
A2.2 Impaired Electrode Response
A2.3 Electrode Cleaning Techniques
A2.4 Temperature Compensation
X1. SPECTROPHOTOMETER CHARACTERISTICS
X1.1
X1.2
X1.3 <\/td>\n<\/tr>\n
10<\/td>\nX1.4
REFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D2791-93(2001) Standard Test Methods for Continuous Determination of Sodium in Water<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2001<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":178555,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[216,2637],"product_tag":[],"class_list":{"0":"post-178550","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-060-50","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/178550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/178555"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=178550"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=178550"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=178550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}