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在电源产品标签上标有SAA证书编号，和认证标 志。
澳大利亚的标准机构为Standards Association of Australian，所以很多朋友把澳大利亚认证称为SAA认证。实际上SAA只是标准制定机构，而不颁发产品认证证书。SAA后来又改名为:Standards Australia Limited。SAA是独立的公司，与政府没有直接的关系，但是联邦政府和州政府是它其中的成员。SAA和澳大利亚联邦政府签署了一个备忘录，承认SAA是澳大利亚的非政府标准组织的最高组织。备忘录也指出，标准的制定要与WTO的要求一致。因此，有协议指出当合适的国际标准已存在时，就不用制定新的澳大利亚标准。澳大利亚的标准以"AS"开头，澳大利亚与新西兰的联合标准以"AS/NZS"开头。澳大利亚的标准与新西兰的标准基本与IEC一致，同时存在一些国家差异。澳大利亚和新西兰推行标准的统一和认证的相互认可，产品只要取得一个国家的认证后就可在另外一个国家销售。
SAA电源进是指通过SAA标准认可，取得SAA证书而且在澳洲本土相关官网上登录，且可以查验到，才可以进入澳大利亚和新西兰市场，准予销售，流通的电源。
saa防水电源的价格是358元，该电源保护功能强大，具有过流、过压、过载、短路、缺相等保电流谐波少，无需谐波抑制装置。护功能，。以上价格来源于网络，仅供参考，具体价格以购买时为准。
LED驱动电源的设计并不难，但是心里一定要先规划好。只要做到调试前计算，调试时测量，调试后老化，相信谁都可以搞好LED。1、LED电流大小大家都知道LEDripple过大的话，LED寿命会受到影响，影...
1、脉冲电源：脉就代表间断、瞬间的意思，冲：就是代表高压，合起来就是瞬间高压，但是无电流或电流极小。2、中频电源：400Hz中频电源是专门为航空及电子电气设备设计制造的电源，可用于飞机及机载设备、雷达...
AC输入240V，频率50Hz
以外观分可以分为∶插墙式、桌面式、一体式、 安装式。
以功能分可以分为∶供电式、充电式。
以使用领域分可分为∶LED驱动电源;电源适配器;铅酸电池充电器;聚合物锂电池充电器 ;磷酸铁锂电池充电器;镍氢电池充电器;镍镉电池充电器。
Roomba 自动机器人扫地机、电动车、电池(铅酸电池，聚合物锂电池，磷酸铁锂电池， 镍氢电池， 镍镉电池)、电动玩具、加湿机、空气净化机、马达按摩美容器械、安防监控系统、精密检测测量仪器、电子信息产品周边、打印映像设备、家用音响功放、LED室内照明、数码通讯家电、LCD、LED液晶显示器、LED室外灯具等等。
名称 | 英文名称 | 标准 |
1. 电器连接器 | APPLIANCE CONNECTOR | AS/NZS 60320.1:2004. AS/NZS 60320.1:2004 and AS/NZS 60320.2.2:2004. |
2. 电弧焊机 | ARC WELDING MACHINE | AS/NZS 60974.6:2006 |
3. 卡口灯座 | BAYONET LAMPHOLDER | AS/NZS 3100 and AS/NZS 3117: 2007 (until 30 December 2016); or AS/NZS 61184:2007 |
4. 卡口灯座适配器 | BAYONET LAMPHOLDER ADAPTOR | AS/NZS 3100 and AS 3119:1994. |
5. 电热毯 | BLANKET | AS/NZS 3350.1 and AS/NZS 3350.2.17:2000 with amendments 1 to 3 (until 31 May 2011); or AS/NZS 60335.1 and AS/NZS 60335.2.17:2004 with amendment 1. |
6. 烤面包器 | BREAD TOASTER | AS/NZS 3350.1 and AS/NZS 3350.2.9:1999 with amendments 1 to 4 (until 22 November 2009): or AS/NZS 60335.1 and AS/NZS 60335.2.9:2002 with amendments 1 to 4 |
7. 干衣机 | CLOTHES DRTER | Rotary type:AS/NZS 3350.1 and AS/NZS 3350.2.11:2001 with amendment 1 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.11:2002 with amendments 1 and 2. Cabinet type:AS/NZS 3350.1 and AS/NZS 3350.2.43:2001 with amendments 1 and 2 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.43:2005 with amendment 1. |
8. 控制或调节装置 | CONTROL OR CONITIONING DEVICE | AS/NZS 3100 and AS/NZS 3197:2005 with amendment 1. |
9. 移动式烹调器具 | COOKING APPLIANCE-PORTABLE TYPE | Griller, roaster, or oven (including breadmaker)- AS/NZS 3350.1 and AS/NZS 3350.2.9:1999 with amendments 1 to 4 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.9:2002 with amendments 1 to 4. Warming plate and similar- AS/NZS 3350.1 and AS/NZS 3350.2.12:1997 with amendments 1 to 3 (until 31 May 2011); or AS/NZS 60335.1 and AS/NZS 60335.2.12:2004. Frying pan, deep fryer or wok- AS/NZS 3350.1 and AS/NZS 3350.2.13:2001 with amendment 1 (until 31 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.13:2004 with amendments 1 and 2. Outdoor barbecue- AS/NZS 3350.1 and AS/NZS 3350.2.78:1996 with amendments 1 to 3 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.78:2005 with amendment 1. |
10. 拖线板 | CORD EXTENSION SOCKET | AS/NZS 3100 and AS/NZS 3120:1999. |
11. 线上开关 | CORD-LINE SWITCH | AS/NZS 3100 and AS/NZS 3127:2005. |
12. 灯饰 | DECORATIVE LIGHTING OUTFIT | AS/NZS 60598.1 and AS/NZS 60598.2.20:2002. |
13. 洗碗机 | DISHWASHING MACHINE | AS/NZS 3350.1 and AS/NZS 3350.2.5:1995 with amendments 1 to 3 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.5:2002 with amendment 1. |
14. 螺口灯座 | EDISON SCREW LAMPHOLDER | AS/NZS 3100 and AS/NZS 3140:2007 (until 30 December 2016) or AS/NZS 60238:2007. |
15. 风扇 | FAN | AS/NZS 3350.1 and AS/NZS 3350.2.80:1998 with amendments 1 to 4 (until 3 September 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.80:2004. |
16. 电栅栏激发器 | FENCE ENERGISER | AS/NZS 3350.1 and AS/NZS 3350.2.76:1998 with amendments 1 to 3 (until 30 May 2010) or AS/NZS 60335.1 and AS/NZS 60335.2.76:2003 with amendment 1. |
17. 电热软垫 | FLEXIBLE HEATING PAD | Foot warmer and foot mat- AS/NZS 3350.1 and AS/NZS 3350.2.81:1998 with amendments 1 and 2 (until 20 October 2013) or AS/NZS 60335.1 and AS/NZS 60335.2.81:2006 with amendment 1 Other- AS/NZS 3350.1 and AS/NZS 3350.2.17:2000 with amendments 1 to 3 (until 31 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.17:2004 with amendment 1. |
18. 地板磨光机/擦地板机 | FLOOR POLISHER/SCRUBBER | AS/NZS 3350.1 and AS/NZS 3350.2.10:1996 with amendments 1 to 3 (until 24 March 2013) or AS/NZS 60335.1 and AS/NZS 60335.2.10:2006. |
19. 日光灯镇流器 | FLUORESCENT LAMP BALLAST | Integral (self ballasted lamp) magnetic and electronic types AS/NZS 60968:2001. Other magnetic type- AS/NZS 61347.1and AS/NZS 61347.2.8:2003. Other electronic type- AS/NZS 6137.1 and AS/NZS 61347.2.3:2004. |
20. 荧光灯启辉器 | FLUORESCENT LAMP STARTER | AS/NZS 60155:2000 (Section 1) with amendments 1 and 2. |
21. 毛发护理电器 | HAIR CARE APPLIANCE | AS/NZS 3350.1 and AS/NZS 3350.2.23:2001 with amendments 1 to 4 (until 31 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.23:2004 with amendment 1. |
22. 修枝剪 | HEDGE CLIPPER | AS/NZS 3100 and AS/NZS 3160 (until 20 October 2009) or AS/NZS 60745.1 and AS/NZS 60745.2.15:2006. |
23. 侵入式加热器 | IMMERSION HWATER | Aquarium type- AS/NZS 3350.1 and AS/NZS 3350.2.55:1998 with amendments 1 to 3 (until 3 September 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.55:2004 with amendment 1. Portable (other than aquarium) type- AS/NZS 3350.1 and AS/NZS 3350.2.74:2001 with amendment 1 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.74:2005 with amendment 1. Fixed type- AS/NZS 3350.1 and AS/NZS 3350.2.73:1996 with amendments 1 to 3 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.73:2005 with amendment 1. |
24. 昆虫电击器 | INSECT ELECTROCUTOR | AS/NZS 3350.1 and AS/NZS 3350.2.59:1999 with amendments 1 to 3 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.59:2005 with amendment 1 and 2. |
25. 手持式探照灯 | INSPECTION HANDLAMP | AS/NZS 60598.1 and AS/NZS 60598.2.8:2002. |
26. 电熨斗 | IRON | Fabric steamer - AS/NZS 3350.1 and AS/NZS 3350.2.85:1998 with amendments 1 and 2 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.85:2005 Other - AS/NZS 3350.1 and AS/NZS 3350.2.3:1995 with amendments 1 to 3 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.3:2002 with amendment 1. |
27. 厨房器具 | KITCHEN MACHINE | AS/NZS 3350.1 and AS/NZS 3350.2.14:1995 with amendments 1 to 4 (until 25 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.14:2007. |
28. 草坪护理器具 | LAWN CARE APPLIANCE | Mower- AS/NZS 60335.1 and AS/NZS 60335.2.77:2002 with amendment 1. Trimmer (with non-metallic filament line or cutter/s)- AS/NZS 60335.1 and AS/NZS 60335.2.91:2002 with amendments 1 and 2 (until 31 October 2010) or AS/NZS 60335.1 and 60335.2.91:2008 Trimmer (other)- AS/NZS 3100 and AS/NZS 3156: 1995 with amendments 1 and 2 (withdrawn from publication) (until 20 October 2008) or AS/NZS 60335.2.91:2008. |
29. 液体加热器 | LIQUID HEATING APPLIANCE | Humidifier- AS/NZS 3350.1 and AS/NZS 3350.2.98:1998 with amendments 1 and 2 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.98:2005. Other- AS/NZS 3350.1 and AS/NZS 3350.2.15:2002 with amendments 1 to 3 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.15:2002 with amendments 1 to 3. |
30. 移动式灯具 | LUMINAIRE - PORTABLE TYPE | Child appealing type (refer to clause (f))- AS/NZS 60598.1 and AS/NZS 60598.2.10:1998. Type fitted with a built-in transformer or convertor- AS/NZS 60598.1 and AS/NZS 60598.2.6:1998. Floodlight- AS/NZS 60598.1 and AS/NZS 60598.2.5:2002. Other- AS/NZS 60598.1 and AS/NZS 60598.2.4: 2005 with amendment 1. |
31. 按摩器 | MASSAGE APPLIANCE | AS/NZS 3350.1 and AS/NZS 3350.2.32:2001 with amendment 1 (until 3 September 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.32:2004 with amendment 1. |
32. 微波炉 | MICROWAVE OVEN | AS/NZS 3350.1 and AS/NZS 3350.2.25:2001 with amendment 1 (until 13 May 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.25:2002 with amendments 1 to 4. |
33. 微型过电流断路器 | MINIATURE OVERCURRENT CIRCUIT-BREAKER | AS 3111or AS/NZS 60898.1:2004 and 60898.2:2004. |
34.OUTLETDEVICE | OUTLET DEVICE | Integral pin type (including travel adaptor) - AS/NZS 3100 and AS/NZS 3122:2005. Other - AS/NZS 3100 and AS/NZS 3105:2007. |
35. 电源插座 | PLUG | AS/NZS 3100 and AS/NZS 3112 |
36.开关电源 | POWER SUPPLY OR CHARGER | Power supply for general use- AS/NZS 61558.1 or AS/NZS 60950.1:2011 and AS/NZS 61558.2.6:2001 with amendment 1. Power supply (electronic or transformer types) designated for use with specific electronic equipment- AS/NZS 60065 or AS/NZS 60950.1:2003 with amendments 1 to 3. Power supply for toys- AS/NZS 61558.1 and AS/NZS 61558.2.7:2001 (until 31 October 2010) or AS/NZS 61558.1:2008 and 61558.2.7:2008. Power supply for bells or chimes- AS/NZS 61558.1 and AS/NZS 61558.2.8:2001. Power supply (electronic type) for lighting purposes- LED modules: AS/NZS 61347.1 and IEC 61347.2.13 edition 1.0 Other: AS/NZS 61347.1 and AS/NZS 61347.2.2:2007. Power supply for Handlamps- AS/NZS 61558.1 and AS/NZS 61558.2.9:2003. Battery charger- AS/NZS 3350.1 and AS/NZS 3350.2.29:2001with amendment 1 (until 31 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.29:2004 with amendment 1. |
37. 投影仪 | PROJECTOR | AS/NZS 3350.1 and AS/NZS 3350.2.56:1998 with amendments 1 to 3 (until 23 June 2013) or AS/NZS 60335.1 and AS/NZS 60335.2.56:2006. |
38. 电磁炉 | RANGE | AS/NZS 3350.1 and AS/NZS 3350.2.6:2006 with amendment 1 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.6:2008 with amendment 1. |
39. 抽油烟机 | RANGE HOOD | AS/NZS 3350.1 and AS/NZS 3350.2.31:2001 with amendments 1 and 2 (until 3 September 2011) or AS/NZS 60335.1 and 60335.2.31:2004 with amendments 1 and 2. |
40. 电动剃须刀/电推剪 | RAZOR/HAIR CLIPPER | AS/NZS 3350.1 and AS/NZS 3350.2.8:1995 with amendments 1 to 3 (until 31 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.8:2004 with amendment 1. |
41. 冰箱/冷柜 | REFRIGERATOR/FREEZER | AS/NZS 3350.1 and AS/NZS 3350.2.24:2001 with amendment 1 (until 14 November 2010) or AS/NZS 60335.1 and AS/NZS 60335.2.24:2003 with amendments 1 to 3. |
42. 漏电流装置 | RESIDUAL CURRENT DEVICE | Without integral overcurrent protection - AS/NZS 61008.1:2004 or AS3190:2002 with amendment 1. With integral overcurrent protection - AS/NZS 61009.1:2004 with amendment 1 or AS/NZS 3190:2002 with amendment 1 and AS 3111 |
43. 房间取暖器 | ROOM HEATER | Thermal storage type- AS/NZS 3350.1 and AS/NZS 3350.2.61:2001 with amendment 1 (until 17 June 2012) or AS/NZS 60335.1 and AS/NZS 60335.2.61:2005 with amendment 1. Other- AS/NZS 3350.1 and AS/NZS 3350.2.30:2007 with amendment 1 (until 31 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.30:2004 with amendments 1 to 5. |
44. 缝纫机 | SEWING MACHINE | AS/NZS 3350.1 and AS/NZS 3350.2.28:1996 with amendments 1 to 3 (until 23 June 2013) or AS/NZS 60335.1 and AS/NZS 60335.2.28:2006. |
45. 插座 | SOCKET-OUTLET | Class specification: AS/NZS 3100 and AS/NZS 3112 |
46. 电烙铁 | SOLDERING IRON | AS/NZS 3350.1 and AS/NZS 3350.2.45:1997 with amendments 1 to 3 (until 3 September 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.45:2004. |
47. 连接导线 | SUPPLY FLEXIBLE CORD | AS 3191:2008; or AS/NZS 60227.5:2003 with amendment 1 (PVC); or AS/NZS 60245.4:2003 with amendment 1 (Rubber). |
48. 游泳池设备或疗养设备 | SWIMMING POOL OR SPA EQUIPMENT | Pump- AS/NZS 3350.1 and AS/NZS 3350.2.41:1997 with amendments 1 to 3 (until 3 September 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.41:2004. Other- AS/NZS 3100 and AS/NZS 3136:2001 with amendments 1 and 2. |
49. 电视接收机 | TELEVISION RECEIVER | AS/NZS 60065 |
50. 治疗用的灯具 | THERAPEUTIC LAMP | AS/NZS 3350.1 and AS/NZS 3350.2.27:1996 with amendments 1 to 3 (until 31 May 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.27:2004 with amendments 1 and 2. |
51. 便携式工具 | TOOL - PORTABLE TYPE | Drill- AS/NZS 60745.1 and AS/NZS 60745.2.1:2003 Sander or polisher (other than disk types)- AS/NZS 60745.1 and AS/NZS 60745.2.4:2003. Circular saw- AS/NZS 60745.1 and AS/NZS 60745.2.5:2003 (until 25 May 2009) or AS/NZS 60745.1 and AS/NZS 60745.2.5:2007. Jig or sabre saw- AS/NZS 60745.1 and AS/NZS 60745.2.11:2003. Planer- AS/NZS 60745.1 and AS/NZS 60745.2.14:2003. Router- AS/NZS 60745.1 and AS/NZS 60745.2.17:2003. Grinder, polisher and disk type sander- AS/NZS 3100 and AS/NZS 3160 (until 20 October 2009) or AS/NZS 60745.1 and AS/NZS 60745.2.3:2006. Chain saw- AS/NZS 3100 and AS/NZS 3160 (until 25 August 2009) or AS/NZS 60745.1 and AS/NZS 60745.2 13:2006. Jointer- AS/NZS 3100 and AS/NZS 3160 (until 25 November 2008) or AS/NZS 60745.1 and AS/NZS 60745.2 19:2005. Other- AS/NZS 3100 and AS/NZS 3160. |
52. 真空清洁器 | VACUUM CLEANER | Hand held garden type- AS/NZS 3350.1 and AS/NZS 3350.2.2:2001 with amendment 1 (until 14 November 2010) or AS/NZS 60335.1 and AS/NZS 60335.2.100:2003 Other- AS/NZS 3350.1 and AS/NZS 3350.2.2:2001with amendment 1 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.2:2002 with amendments 1 and 2. |
53. 墙壁开关 | WALL SWITCH | AS/NZS 3100 and AS/NZS 3133:2008. |
54. 洗衣机 | WASHING MACHINE | AS/NZS 3350.1 and AS/NZS 3350.2.7:2001 with amendment 1 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.7:2002 with amendments 1 to 3. |
55.水床加热器 | WATER BED HEATER | AS/NZS 3350.1 and AS/NZS 3350.2.66:1997 with amendments 1 to 3 (until 3 September 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.66:2004. |
56. 热水炉 | WATER HEATER | Pressure storage - AS/NZS 3350.1 and AS/NZS 3350.2.21:1999 with amendments 1 to 5 (until 22 November 2009) or AS/NZS 60335.1 and AS/NZS 60335.2.21:2002 with amendments 1 and 2. Instantaneous - AS/NZS 3350.1 and AS/NZS 3350.2.35:1999 with amendments 1 and 2 (until 15 October 2011) or AS/NZS 60335.1 and AS/NZS 60335.2.35:2004 with amendment 1. |
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UPS电源和EPS电源的选择
UPS电源和EPS电源的选择
UPS电源和 EPS电源的选择 UPS EPS 中文名称 不间断电源 应急电源 英文名称 Uninterruptible Power System Emergency Power Supply 功能侧重 要求供电质量较高，强调逆变 切换时间、输出电压、频率稳 定性、输出波型的纯正性等要 求 强调能够持续供电， 确保电力保障， 能及时提供逃生照明和消防应急 常用领域 强弱电机房、计算机、精密仪 器仪表 消防应急照明、消防电力设备 供电选择 两路，逆变优先，保证供电 两路，市电优先，保证节能 供电方式 在线式 离线式 工作原理 无论市电是否正常，始终由逆 变器供电，按照“市电输入 -整 流（充电） -逆变 -输出”的路 径进行； 当逆变器故障或过载时，改由 旁路供电； 当市电正常时，市电通过一路输出， 同时充电器对电池充电； 当市电停电或电压过低时，一路断 开，二路闭合，切换为应急状态，
单电源和双电源的区别
单电源和双电源的区别
整流后，只有 +电或 -电单独供给的电源，就是单电源。例如： 如果同时用±电一齐供给的电源就是双电源。例如： 运放作为模拟电路的主要器件之一，在供电方式上有单电源和双电源两种，而选择何种供 电方式， 是初学者的困惑之处， 本人也因此做了详细的实验， 在此对这个问题作一些总结。 首先，运放分为单电源运放和双电源运放，在运放的 datasheet 上，如果电源电压 写的是（＋ 3V- ＋30V ） /（±1.5V-± 15V ）如 LM324 ，则这个运放就是单电源运放，既 能够单电源供电，也能够双电源供电；如果电源电压是（ ±1.5V-± 15V ）如 LM741 ，则 这个运放就是双电源运放，仅能采用双电源供电。 但是，在实际应用中，这两种运放都能采用单电源、双电源的供电模式。具体使用 方式如下： 1：在放大直流信号时，如果采用双电源运放，则最好选择正负双电源供电，否则输 入信号幅度较小时
重型再生障碍性贫血
severe aplastic anemia，SAA，即重型再生障碍性贫血。
人血清淀粉样蛋白A
serum amyloid A protein (SAA)
SAA和CRP是病毒和细菌感染的标志物，细菌感染时二者浓度升高相平行，病毒感染时，SAA在康复期消失更快。不论CRP是否升高，SAA似乎是急性病毒感染炎症的临床有用标志物。
SAA在结核、麻风、类风关、恶性肿瘤、自身免疫疾病、病毒感染、肾移植排斥、淀粉样病变中均能升高。急性病毒感染时，CRP不像细菌感染时显著升高，它仅在一个狭窄范围内变化，临床需要敏感的病毒感染标志物。
SAA来自于载脂蛋白Apolipoprotein家族,是复合到HDL上的急性相蛋白.含数组、分子量约11-12kDa的蛋白. 人血液中的SAA基本上来自于高密度脂蛋白HDL. 有一组SAA称Constitutive SAA, 也就是SAA3,SAA4和SAA5,在肝脏合成后几乎不进入血流. 另一组急性期SAA, 包括SAA1和SAA2,由肝细胞产生后进入血流.
急性期SAA是人血浆中的主要SAA成份.
巳证明在病毒感染, 肾移植排斥病例中,SAA是一个比其它炎症相关蛋白更有用的标志物.
A-SAA1 and A-SAA2 有93% 氨基酸序列相同，而C-SAA 的多肽长度不同于 A-SAA ，氨基酸序列也仅有55%相同于 A-SAAs. 大部分病毒感染病人康复期SAA<10 mg/L (住院一周后)。2100433B
surface active agent， SAA，即表面活性剂。
不同物质加入水中，其溶液的表面张力会随加入物质的浓度变化而变化。表面活性剂是这样一种物质：当取少量物质溶于水中后，就能引起水溶液表面张力（或液/液界面张力）显著降低，这种物质就是表面活性剂（Surface active agent,SAA）。
SAA疾病简称