Standard Test Method for Determination of Copper Release Rate From Antifouling Coatings in Substitute Ocean Water
用于替代海水中防污涂料铜释放速率的标准测试方法
发布日期:
2005-07-01
1.1本试验方法包括实验室测定替代海水中防污涂层中铜的释放速率。通过该方法量化铜释放率的实际极限为1.8至500 g cm
-2
d
-1
. 该范围可扩展至0.2至500 g cm
-2
d
-1
如果遵循中所述的分析程序。
1.2本程序包含测定防污涂料中铜释放率的准备步骤,包括仪器、试剂、储罐条件和采样点细节。分析替代海水中的铜浓度需要在较低的g L部分准确测定铜
-1
(十亿分之一,ppb)水平。为了检测和校正试剂杂质,需要可接受的分析精度标准。
因此,用于分析方法的替代海水中铜的定量限(LOQ)应为10 g L
-1
(10 ppb)或更少。测定分析方法的替代海水中铜的定量限的程序见。
1.3(石墨炉原子吸收光谱法,GF-AAS)中描述了一种合适的方法。其他分析方法可根据需要与相关程序更改一起使用,以适应选定的特定方法。此类方法必须满足10 g L替代海水中铜的定量限
-1
(10 ppb)或更少。见1.2。
1.4本试验方法尚未验证,以反映防污产品的原位铜释放率,因此不应在生成环境风险评估的过程中使用。
防污(AF)涂层的在役释放率随海水化学、温度和水动力状态的自然变化而变化。
1.5以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。
1.6本标准无意解决与其使用相关的所有安全问题(如有)。本标准的用户有责任在使用前制定适当的安全规程,并确定监管限制的适用性。
有关具体的危险说明,请参阅第7节。
1.1 This test method covers the laboratory determination of the rate at which copper is released from an antifouling coating in substitute ocean water. The practical limits for quantifying copper release rates by this method are from 1.8 to 500 g cm
-2
d
-1
. This range may be extended to 0.2 to 500 g cm
-2
d
-1
if the analytical procedure described in is followed.
1.2 The procedure contains the preparation steps for the release rate determination of copper from antifouling paints including apparatus, reagents, holding tank conditions, and sampling point details. Analysis for the concentration of copper in substitute ocean water requires the accurate determination of copper at the low parts g L
-1
(parts per billion, ppb) level. To detect and correct for reagent impurities, acceptable analytical precision standards are necessary. Therefore, the limit of quantitation (LOQ) for copper in substitute ocean water for the analytical method shall be 10 g L
-1
(10 ppb) or less. The procedure for determining the LOQ for copper in substitute ocean water for the analytical method is found in.
1.3 A suitable method is described in (graphite furnace atomic absorption spectroscopy, GF-AAS). Other analytical methods may be utilized with relevant procedural changes, as needed, to accommodate selected specific methods. Such methods must meet the limit of quantitation for copper in substitute ocean water of 10 g L
-1
(10 ppb) or less. See 1.2.
1.4 This test method has not been validated to reflect in situ copper release rates for antifouling products and, therefore should not be used in the process of generating environmental risk assessments. In-service release rates of antifouling (AF) coatings change with natural variability in seawater chemistry, temperature, and hydrodynamic regime.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 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 practices and to determine the applicability of regulatory limits prior to use.
For specific hazard statements, see Section 7.