{"id":290209,"date":"2024-10-19T19:41:29","date_gmt":"2024-10-19T19:41:29","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d5464-2007\/"},"modified":"2024-10-25T16:41:12","modified_gmt":"2024-10-25T16:41:12","slug":"astm-d5464-2007","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d5464-2007\/","title":{"rendered":"ASTM-D5464 2007"},"content":{"rendered":"

ASTM D5464-07<\/h3>\n

Historical Standard: Standard Test Method for pH Measurement of Water of Low Conductivity<\/h4>\n
\n

ASTM D5464<\/h4>\n

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

1.1 This test method is applicable to determine the pH of water samples with a conductivity of 2 to 100 \u00b5 S\/cm over the pH range of 3 to 11. pH measurements of water of low conductivity are problematic. Specifically, this test method avoids contamination of the sample with atmospheric gases and prevents volatile components of the sample from escaping. This test method provides for pH electrodes and apparatus that address additional considerations discussed in . This test method also minimizes problems associated with the sample’s pH temperature coefficient when the operator uses this test method to calibrate an on-line pH monitor or controller (see Appendix X1).<\/p>\n

1.2 This test method covers the measurement of pH in water of low conductivity with a lower limit of 2.0 \u00b5S\/cm, utilizing a static grab-sample procedure where it is not practicable to take a real-time flowing sample.<\/p>\n

Note 1 <\/p>\n

Test Method D 5128 for on-line measurement is preferred over this method whenever possible. Test Method D 5128 is not subject to the limited conductivity range, temperature interferences, potential KCl contamination, and time limitations found with this method.<\/p>\n

1.3 For on-line measurements in water with conductivity of 100 \u00b5S\/cm and higher, see Test Method D 6569.<\/p>\n

1.4 For laboratory measurements in water with conductivity of 100 \u00b5S\/cm and higher, see Test Method D 1193.<\/p>\n

1.5 The values stated in SI units are to be regarded as standard.<\/p>\n

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.<\/p>\n

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

automatic temperature compensator; controlled leakage rate; flowing liquid junction; high purity water; liquid junction potential; low conductivity water; pH glass electrode; pH temperature coefficient; reference electrode; solution temperature coefficient<\/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\/D5464-07<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\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
Reagents <\/td>\n<\/tr>\n
2<\/td>\nSummary of Test Method
Significance and Use
Interferences <\/td>\n<\/tr>\n
3<\/td>\nApparatus
Sampling and Sample Handling
Calibration
Procedure <\/td>\n<\/tr>\n
4<\/td>\nQuality Control
Precision and Bias
Keywords
FIG. 1 <\/td>\n<\/tr>\n
5<\/td>\nA1. DISCUSSION OF THE CONDUCTIVITY RANGE FOR THIS TEST METHOD
A1.1
TABLE A1.1 <\/td>\n<\/tr>\n
6<\/td>\nA2. CONSIDERATIONS FOR THE REQUIREMENT OF SPECIALIZED pH MEASUREMENT APPARATUS
A2.1
A2.2
TABLE A1.2 <\/td>\n<\/tr>\n
7<\/td>\nX1. TEMPERATURE EFFECTS IN PURE WATER
X1.1
X1.2
X1.3
X1.4
TABLE X1.1 <\/td>\n<\/tr>\n
8<\/td>\nX1.5
X2. SUPPLEMENT FOR GRAB SAMPLE CALIBRATION (GSC) OF ON-LINE pH SENSORS
X2.1
X2.2
X2.3
TABLE X1.2 <\/td>\n<\/tr>\n
9<\/td>\nX2.4
X2.5
X3. EFFECTS OF CO2 ON pH MEASUREMENTS OF HIGH PURITY WATER
X3.1 <\/td>\n<\/tr>\n
10<\/td>\nFIG. X3.1 <\/td>\n<\/tr>\n
11<\/td>\nREFERENCES
TABLE X3.1 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D5464-07 Standard Test Method for pH Measurement of Water of Low Conductivity<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2007<\/td>\n11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":290215,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[216,2637],"product_tag":[],"class_list":{"0":"post-290209","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\/290209","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\/290215"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=290209"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=290209"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=290209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}