毛皮、皮革标准-分析测试百科网

ASTM D2810-13 皮革pH值的标准试验方法

4.1 This test method is designed to measure the pH of a distilled-water extract of leather. This is considered to be a measure of the acidity or alkalinity of the leather. Excessive acidity or alkalinity may have a deleterious effect on the aging characteristics of leather. 4.2 This test method is suitable for development, control, and service evaluation of leather. 1.1 This test method covers the determination of the pH of all types of leather. This method does not apply to wet blue. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for pH of Leather

ICS: 59.140.30 (Leather and furs)
CCS: Y46
发布: 2013
实施

EN ISO 17489:2013 皮革.化学试验.合成鞣剂中鞣料含量的测定

Diese Internationale Norm legt ein einfaches und praktikables Verfahren zur Bestimmung des adsorbierbaren Anteils von synthetischen Gerbstoffen mit einem Produkt auf Polymerbasis fest. Es ist besonders zur Messung der gleichbleibenden Qualitat von synthetischen Gerbstoffen geeignet.

Leather - Chemical tests - Determination of tan content in synthetic tanning agents

ICS: 59.140.30
CCS: Y46
发布: 2013
实施: 2013

ASTM D6075-13 皮革耐开裂性的标准试验方法

5.1 This test method is designed to determine the cracking resistance of the grain or finish surface of leather on a pass/fail basis. This test method attempts to replicate the conditions that may be encountered by leather that is bent around a buckle frame or other anchoring device, folded over in seams or welts, and so forth. The cracking resistance of leather is influenced by many factors such as quantity, location, and type of fatliquoring materials; moisture content; thickness; the presence of defects or scar tissue, or both; the presence of processing damages to the skin or hide tissue; finish system formulation, and so forth. This test method is useful for manufacturing control in the tannery, specification acceptance, and quality control in the end product manufacturing plant. 1.1 This test method covers the determination of the resistance of leather to cracking when the leather is bent or folded with the grain (or finish) surface on the outside of the bend. Heavy leathers (for example, harness, belt, strap, bag, case, and so forth) are usually bent around a mandrel using either mechanical resistance (for example, clamp, vise, and so forth) or by hand. Lighter leathers (for example, shoe upper, upholstery, garment, glove, and so forth) are usually given a sharp double-fold (crosswise) bend after cooling to a low temperature. This test method does not apply to wet blue. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Cracking Resistance of Leather

ICS: 59.140.30 (Leather and furs)
CCS: Y46
发布: 2013
实施

ASTM D4704-13 皮革的抗撕强度和切口撕裂的标准试验方法

4.1 Knowledge of the strength of the sample can be a determining factor for the end use of the product. 1.1 This test method is intended for determining the tearing strength of leather by measuring the force required to tear a specimen cut perpendicular to the surface. This test method does not apply to wet blue. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Tearing Strength, Tongue Tear of Leather