1.1 本试验方法涵盖了术语中定义的松木化学制品中材料百分比的测定 D804型 包括松香、妥尔油和相关产品，但不溶性污垢或类似可见异物除外，当样品用氢氧化钾皂化时，这些异物不会产生水溶性肥皂。 1.2 以国际单位制表示的值应视为标准值。本标准不包括其他测量单位。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 注1: 据报道，这种方法可能不适用于松香，尤其是任何含有挥发性萜烯的松香。 挥发性萜烯的定义是不皂化物质，在中所述的干燥条件下会损失 8.4 该方法适用于妥尔油松香和木松香，因为这些松香不含挥发性萜烯。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 3.1 本试验方法旨在通过将塔尔油和从产品中提取的塔尔油作为试验材料，扩大前一版试验方法的范围。试验方法 D803型 目前包括一种测定不皂化物质的方法。 3.2 塔尔油和其他相关产品中不皂化物质的量对于表征此类产品很重要，因为它表明测试材料中存在的非酸性物质（游离和混合）的水平。海军仓库中的不皂化产品主要由高分子量醇、甾醇和碳氢化合物组成。

1.1 This test method covers the determination of the percentage of material in pine chemicals products as defined in Terminology D804 including rosin, tall oil, and related products, other than insoluble dirt or similar visible foreign matter that does not yield a water-soluble soap when the sample is saponified with potassium hydroxide. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: It has been reported that this method may not be applicable to gum rosin, especially any gum rosin containing volatile terpenes. Volatile terpenes are by definition unsaponifiable matter, and can be lost under the drying conditions described in 8.4 . The method is applicable to tall oil rosin and wood rosin as these rosins do not contain volatile terpenes. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 3.1 This test method is designed to broaden the scope of the previous edition of the test method by the inclusion of tall oil and tall oil derived from products as test materials. Test Methods D803 currently includes a method for the determination of unsaponifiable matter. 3.2 The amount of unsaponifiable matter in tall oil and other related products is important in characterizing such products as it indicates the level of nonacidic material, both free and combined, present in the test material. The unsaponifiable in naval stores products is primarily composed of higher molecular weight alcohols, sterols, and hydrocarbons.