{"id":16309,"date":"2024-10-16T22:06:01","date_gmt":"2024-10-16T22:06:01","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-c146\/"},"modified":"2024-10-24T12:19:54","modified_gmt":"2024-10-24T12:19:54","slug":"astm-c146","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-c146\/","title":{"rendered":"ASTM-C146"},"content":{"rendered":"<\/p>\n

1.1 These test methods cover the chemical analysis of glass sands. They are useful for either high-silica sands (99 % + silica (SiO 2<\/sub> )) or for high-alumina sands containing as much as 12 to 13 % alumina (Al 2<\/sub> O 3<\/sub> ). Generally nonclassical, the test methods are rapid and accurate. They include the determination of silica and of total R 2<\/sub> O 3<\/sub> (see 11.2.4), and the separate determination of total iron as iron oxide (Fe 2<\/sub> O 3<\/sub> ), titania (TiO 2<\/sub> ), chromium oxide (Cr 2<\/sub> O 3<\/sub> ), zirconia (ZrO 2<\/sub> ), and ignition loss. Included are procedures for the alkaline earths and alkalies. High-alumina sands may contain as much as 5 to 6 % total alkalies and alkaline earths. It is recommended that the alkalies be determined by flame photometry and the alkaline earths by absorption spectrophotometry.<\/p>\n

1.2 These test methods, if followed in detail, will provide interlaboratory agreement of results.<\/p>\n

PDF Catalog<\/h4>\n\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
Significance and Use <\/td>\n<\/tr>\n
2<\/td>\nPhotometers and Photometric Practice
Purity of Reagents
Concentration of Acids and Ammonium Hydroxide
(NH
OH)
Filter Papers
Preparation of Sample
Precision and Bias
Silica (SiO
) by the Double Dehydration Method <\/td>\n<\/tr>\n
3<\/td>\nTotal R
O
by Ammonium Hydroxide (NH
OH) Precipitation <\/td>\n<\/tr>\n
4<\/td>\nPreparation of the Sample for Determination of Iron Oxide, Titania, Alumina, and Zirconia
Iron Oxide (as Fe
O
) by the 1,10-Phenanthroline Method <\/td>\n<\/tr>\n
5<\/td>\nTitania (TiO
) by the Tiron Method
Alumina (Al
O
) by the CDTA Complexiometric Titration <\/td>\n<\/tr>\n
6<\/td>\nZirconia (ZrO
) by the Pyrocatechol Violet Method (for All Samples) <\/td>\n<\/tr>\n
7<\/td>\nChromium Oxide (Cr
O
) by the 1,5-Diphenylcarbohydrazide Method <\/td>\n<\/tr>\n
8<\/td>\nGeneral Considerations
Silica (SiO
) by the Single Dehydration Method
Al
O
, CaO, and MgO by Atomic Absorption; Na
O and K
O by Flame Emission Spectroscopy <\/td>\n<\/tr>\n
9<\/td>\nReagents
Flame Buffer Solutions <\/td>\n<\/tr>\n
10<\/td>\nFlame Spectrophotometry (Atomic Absorption and Emission)
Flame Reference Standards
TABLE 1 <\/td>\n<\/tr>\n
11<\/td>\nPreparation of Sample Solutions for the Determination of Al
O <\/p>\n

Preparation of Sample Solutions for the Determination of Na
O and K
O
Comparison of Samples to Reference Standards
TABLE 2 <\/td>\n<\/tr>\n

12<\/td>\nLoss on Ignition
Keywords <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

C146-94a(2009) Standard Test Methods for Chemical Analysis of Glass Sand<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2009<\/td>\n12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":16310,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1157,2637],"product_tag":[],"class_list":{"0":"post-16309","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-81-040-10","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\/16309","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\/16310"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=16309"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=16309"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=16309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}