{"id":77601,"date":"2024-10-17T17:59:51","date_gmt":"2024-10-17T17:59:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d1293\/"},"modified":"2024-10-24T19:33:13","modified_gmt":"2024-10-24T19:33:13","slug":"astm-d1293","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d1293\/","title":{"rendered":"ASTM-D1293"},"content":{"rendered":"

ASTM D1293-12<\/h3>\n

Historical Standard: Standard Test Methods for pH of Water<\/h4>\n
\n

ASTM D1293<\/h4>\n

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

1.1 These test methods cover the determination of pH by electrometric measurement using the glass electrode as the sensor. Two test methods are given as follows:<\/p>\n

1.2 Test Method A covers the precise measurement of pH in water utilizing at least two of seven standard reference buffer solutions for instrument standardization.<\/p>\n

1.3 Test Method B covers the routine measurement of pH in water and is especially useful for continuous monitoring. Two buffers are used to standardize the instrument under controlled parameters, but the conditions are somewhat less restrictive than those in Test Method A. For on-line measurement, also see Test Method D6569 which provides more detail.<\/p>\n

1.4 Both test methods are based on the pH scale established by NIST (formerly NBS) Standard Reference Materials.<\/p>\n

1.5 Neither test method is considered to be adequate for measurement of pH in water whose conductivity is less than about 5 \u03bc<\/span>S\/cm. Refer to Test Methods D5128 and D5464.<\/p>\n

1.6 Precision and bias data were obtained using buffer solutions only. It is the user’s responsibility to assure the validity of these test methods for untested types of water.<\/p>\n

1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.<\/p>\n

1.8 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.<\/span><\/p>\n

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

hydrogen ion concentration; pH; pH buffer solution; Routine measurement (of pH) method; Water quality monitoring; Acidity, alkalinity, pH–water; Buffer solutions; Continuous measurement\/monitoring; Field testing–water; Glass electrodes; Hydrogen ion concentration; Instrumental measurement–water; pH–glass electrode; pH–water; Precise laboratory measurement (of pH) method; Process pH measurements; Reference buffer solutions; Remote pH measurements<\/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\/D1293-12<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\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 <\/td>\n<\/tr>\n
2<\/td>\nSummary of Test Method
Significance and Use
Purity of Reagents
Sampling
Scope
Interferences
TABLE 1 <\/td>\n<\/tr>\n
3<\/td>\nApparatus
Reagents <\/td>\n<\/tr>\n
4<\/td>\nTABLE 2
TABLE 3 <\/td>\n<\/tr>\n
5<\/td>\nStandardization of Assembly
Procedure <\/td>\n<\/tr>\n
6<\/td>\nReport
Precision and Bias
Scope
Summary of Test Method
FIG. 1 <\/td>\n<\/tr>\n
7<\/td>\nInterferences
Apparatus
Reagents
Standardization of Assembly
TABLE 4 <\/td>\n<\/tr>\n
8<\/td>\nProcedure, Batch Samples
Report
Precision and Bias
Keywords <\/td>\n<\/tr>\n
9<\/td>\nX1. MISCELLANEOUS NOTES ON GLASS ELECTRODE MEASUREMENTS AND EQUIPMENT
X1.1 Meaning of the Term pH
X1.2 Temperature Effects
X1.3 Reference Electrodes
X1.4 Faulty Glass Electrode Response and Restorative Techniques <\/td>\n<\/tr>\n
10<\/td>\nX1.5 Special Measurements Techniques <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D1293-12 Standard Test Methods for pH of 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>\n2012<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":77602,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[216,2637],"product_tag":[],"class_list":{"0":"post-77601","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\/77601","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\/77602"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=77601"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=77601"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=77601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}