{"id":4554,"date":"2026-04-09T08:25:52","date_gmt":"2026-04-09T08:25:52","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4554"},"modified":"2026-04-09T08:25:52","modified_gmt":"2026-04-09T08:25:52","slug":"iso-4406-%e6%b2%b9%e5%9c%a7%e3%82%aa%e3%82%a4%e3%83%ab%e6%b8%85%e6%b5%84%e5%ba%a6%e3%82%b3%e3%83%bc%e3%83%89%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/","title":{"rendered":"ISO 4406\u306e\u8aac\u660e\uff1a\u4f5c\u52d5\u6cb9\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u306e\u5b8c\u5168\u30ac\u30a4\u30c9"},"content":{"rendered":"<p><span style=\"font-size: 1.7em; font-weight: bold;\">\u306f\u3058\u3081\u306b<\/span><\/p>\n<section class=\"introduction\">\u6cb9\u5727\u30b7\u30b9\u30c6\u30e0\u304c\u78ba\u5b9f\u306b\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u6e05\u6d44\u306a\u4f5c\u52d5\u6cb9\u304c\u5fc5\u8981\u3067\u3059\u3002\u9855\u5fae\u93e1\u3067\u3057\u304b\u898b\u3048\u306a\u3044\u5c0f\u3055\u306a\u7c92\u5b50\u3067\u3055\u3048\u3001\u30b5\u30fc\u30dc\u30d0\u30eb\u30d6\u3001\u30d4\u30b9\u30c8\u30f3\u30dd\u30f3\u30d7\u3001\u65b9\u5411\u5236\u5fa1\u30d0\u30eb\u30d6\u306a\u3069\u306e\u7cbe\u5bc6\u90e8\u54c1\u306e\u6469\u8017\u3001\u713c\u304d\u4ed8\u304d\u3001\u65e9\u671f\u6545\u969c\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u306e <a href=\"https:\/\/www.iso.org\/standard\/72618.html\">ISO 4406<\/a> \u898f\u683c\u306f\u3001\u6d41\u4f53\u306e\u6e05\u6d44\u5ea6\u30ec\u30d9\u30eb\u3092\u4f1d\u9054\u3059\u308b\u305f\u3081\u306e\u666e\u904d\u7684\u306a\u8a00\u8a9e\u3092\u63d0\u4f9b\u3057\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u8981\u4ef6\u3092\u6307\u5b9a\u3057\u3001\u6761\u4ef6\u3092\u76e3\u8996\u3057\u3001\u9069\u5207\u306a\u308d\u904e\u3092\u9078\u629e\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002.<\/section>\n<section class=\"definition\">\n<h2>ISO4406\u3068\u306f\uff1f<\/h2>\n<p>ISO 4406:1999 \u306f\u3001\u4f5c\u52d5\u6cb9\u4e2d\u306e\u56fa\u4f53\u7c92\u5b50\u306b\u3088\u308b\u6c5a\u67d3\u30ec\u30d9\u30eb\u3092\u30b3\u30fc\u30c9\u5316\u3059\u308b\u305f\u3081\u306e\u56fd\u969b\u898f\u683c\u3067\u3042\u308b\u3002\u3053\u306e\u898f\u683c\u3067\u306f\u300119\/17\/14 \u306e\u3088\u3046\u306b\u30b9\u30e9\u30c3\u30b7\u30e5\u3067\u533a\u5207\u3089\u308c\u305f 3 \u3064\u306e\u6570\u5b57\u30b3\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3001\u5404\u6570\u5b57\u306f\u7c92\u5b50\u5f84\u306e\u7bc4\u56f2\u3092\u8868\u3059\u3002.<\/p>\n<p>3\u3064\u306e\u6570\u5b57\u304c\u5bfe\u5fdc\u3057\u3066\u3044\u308b\uff1a<\/p>\n<ul>\n<li><strong>\u6700\u521d\u306e\u756a\u53f7<\/strong>:\u7c92\u5b50\u22654\u03bcm\uff081mL\u3042\u305f\u308a\uff09<\/li>\n<li><strong>\u30bb\u30ab\u30f3\u30c9\u30ca\u30f3\u30d0\u30fc<\/strong>:\u7c92\u5b50\u22656\u03bcm\uff081mL\u3042\u305f\u308a\uff09<\/li>\n<li><strong>\u756a\u76ee<\/strong>:\u7c92\u5b50\u226514\u03bcm\uff081mL\u3042\u305f\u308a\uff09<\/li>\n<\/ul>\n<p>ISO 4406\u306f\u3001\u30ec\u30fc\u30b6\u30fc\u30d1\u30fc\u30c6\u30a3\u30af\u30eb\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u4f7f\u7528\u3057\u3066\u7c92\u5b50\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u88c5\u7f6e\u306f\u3001\u6d41\u4f53\u304c\u901a\u904e\u3059\u308b\u969b\u306b\u30ec\u30fc\u30b6\u30fc\u30d3\u30fc\u30e0\u3092\u7834\u3063\u3066\u7c92\u5b50\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u6a19\u6e96\u5316\u3055\u308c\u305f\u30b5\u30a4\u30ba\u7bc4\u56f2\u306b\u5206\u985e\u3057\u307e\u3059\u3002.<\/p>\n<\/section>\n<section class=\"interpretation\">\n<h2>ISO 4406\u30b3\u30fc\u30c9\u306e\u8aad\u307f\u65b9<\/h2>\n<p>ISO 4406\u30b3\u30fc\u30c9\u306e\u5404\u6570\u5024\u306f0\u304b\u308928\u306e\u7bc4\u56f2\u3067\u3001\u6b63\u78ba\u306a\u6570\u3067\u306f\u306a\u304f\u7c92\u5b50\u6570\u306e\u7bc4\u56f2\u3092\u8868\u3059\u3002\u30b3\u30fc\u30c922\u306f\u3001\u305d\u306e\u7c92\u5b50\u5f84\u7bc4\u56f2\u306b\u3064\u3044\u306620,000\uff5e40,000\u500b\/ml\u3092\u610f\u5473\u3059\u308b\u3002.<\/p>\n<p>\u30b3\u30fc\u30c9\u756a\u53f7\u304c\u5897\u52a0\u3059\u308b\u3054\u3068\u306b\u3001\u7c92\u5b50\u6570\u7bc4\u56f2\u306f2\u500d\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30b3\u30fc\u30c9\u306e\u308f\u305a\u304b\u306a\u5897\u52a0\u306f\u3001\u6c5a\u67d3\u30ec\u30d9\u30eb\u306e\u5927\u5e45\u306a\u30b8\u30e3\u30f3\u30d7\u3092\u610f\u5473\u3057\u307e\u3059\u3002.<\/p>\n<h3>ISO4406\u30b3\u30fc\u30c9\u8868<\/h3>\n<table>\n<thead>\n<tr>\n<th>ISO\u30b3\u30fc\u30c9<\/th>\n<th>\u7c92\u5b50\/mL\uff08\u6700\u5c0f\uff09<\/th>\n<th>\u7c92\u5b50\/mL\uff08\u6700\u5927\uff09<\/th>\n<th>\u6e05\u6d44\u5ea6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>9<\/td>\n<td>2.5<\/td>\n<td>5<\/td>\n<td>\u975e\u5e38\u306b\u30af\u30ea\u30fc\u30f3<\/td>\n<\/tr>\n<tr>\n<td>12<\/td>\n<td>20<\/td>\n<td>40<\/td>\n<td>\u30af\u30ea\u30fc\u30f3<\/td>\n<\/tr>\n<tr>\n<td>15<\/td>\n<td>160<\/td>\n<td>320<\/td>\n<td>\u53ef<\/td>\n<\/tr>\n<tr>\n<td>18<\/td>\n<td>1,300<\/td>\n<td>2,500<\/td>\n<td>\u9650\u754c<\/td>\n<\/tr>\n<tr>\n<td>19<\/td>\n<td>2,500<\/td>\n<td>5,000<\/td>\n<td>\u6c5a\u67d3<\/td>\n<\/tr>\n<tr>\n<td>22<\/td>\n<td>20,000<\/td>\n<td>40,000<\/td>\n<td>\u3068\u3066\u3082\u6c5a\u3044<\/td>\n<\/tr>\n<tr>\n<td>24<\/td>\n<td>80,000<\/td>\n<td>160,000<\/td>\n<td>\u3072\u3069\u3044\u6c5a\u308c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u5b9f\u4f8b<\/h3>\n<p>ISO\u30b3\u30fc\u30c919\/17\/14\u3092\u793a\u3059\u6cb9\u306e\u30b5\u30f3\u30d7\u30eb\u30fb\u30ec\u30dd\u30fc\u30c8\u3092\u691c\u8a0e\u3059\u308b\uff1a<\/p>\n<ul>\n<li><strong>19<\/strong> = 4\u03bcm\u4ee5\u4e0a\u306e\u7c92\u5b502,500\uff5e5,000\u500b\/mL<\/li>\n<li><strong>17<\/strong> = 630\uff5e1,250\u7c92\u5b50\u22676\u03bcm\/mL<\/li>\n<li><strong>14<\/strong> = \u7c92\u5b50\u5f84\u226514\u03bcm\u304c40\uff5e80\u500b\/mL<\/li>\n<\/ul>\n<p>\u30b3\u30fc\u30c922\/18\/13\u306f\u300120\/16\/11\u306e4\u500d\u306e\u7c92\u5b50\u3092\u542b\u3080\u3002\u30b3\u30fc\u30c9\u756a\u53f7\u306e\u308f\u305a\u304b\u306a\u9055\u3044\u306f\u3001\u6c5a\u67d3\u306e\u5927\u304d\u306a\u9055\u3044\u3092\u8868\u3057\u3066\u3044\u308b\u3002.<\/p>\n<\/section>\n<section class=\"requirements\">\n<h2>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u6e05\u6d44\u5ea6\u8981\u4ef6<\/h2>\n<p>\u7570\u306a\u308b <a href=\"\/components\/\">\u6cb9\u5727\u90e8\u54c1<\/a> \u53ef\u52d5\u9762\u9593\u306e\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u306b\u3088\u308a\u3001\u6c5a\u67d3\u3092\u8a31\u5bb9\u3059\u308b\u7bc4\u56f2\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u7cbe\u5bc6\u90e8\u54c1\u306f\u3088\u308a\u6e05\u6d44\u306a\u6db2\u4f53\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/th>\n<th>\u5178\u578b\u7684\u306a\u30af\u30ea\u30a2\u30e9\u30f3\u30b9<\/th>\n<th>\u5bfe\u8c61ISO\u30b3\u30fc\u30c9<\/th>\n<th>\u63a8\u5968\u30d5\u30a3\u30eb\u30bf\u30fc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30b5\u30fc\u30dc\u5f01<\/td>\n<td>0.5-4 \u03bcm<\/td>\n<td>14\/12\/9<\/td>\n<td>3 \u03bcm<\/td>\n<\/tr>\n<tr>\n<td>\u6bd4\u4f8b\u5f01<\/td>\n<td>2-8 \u03bcm<\/td>\n<td>15\/13\/10<\/td>\n<td>5 \u03bcm<\/td>\n<\/tr>\n<tr>\n<td>\u30d4\u30b9\u30c8\u30f3\u30dd\u30f3\u30d7\/\u30e2\u30fc\u30bf\u30fc<\/td>\n<td>0.5-5 \u03bcm<\/td>\n<td>16\/14\/11<\/td>\n<td>6 \u03bcm<\/td>\n<\/tr>\n<tr>\n<td>\u30d9\u30fc\u30f3\u30dd\u30f3\u30d7\/\u30e2\u30fc\u30bf\u30fc<\/td>\n<td>0.5-13 \u03bcm<\/td>\n<td>17\/15\/12<\/td>\n<td>10 \u03bcm<\/td>\n<\/tr>\n<tr>\n<td>\u30ae\u30a2\u30dd\u30f3\u30d7\/\u30e2\u30fc\u30bf\u30fc<\/td>\n<td>0.5-25 \u03bcm<\/td>\n<td>18\/16\/13<\/td>\n<td>12 \u03bcm<\/td>\n<\/tr>\n<tr>\n<td>\u65b9\u5411\u5f01<\/td>\n<td>2-40 \u03bcm<\/td>\n<td>18\/16\/13<\/td>\n<td>12 \u03bcm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u30d4\u30b9\u30c8\u30f3\u30dd\u30f3\u30d7\u30e1\u30fc\u30ab\u30fc\u306f\u901a\u5e38\u3001\u6700\u4f4e\u6e05\u6d44\u5ea6\u309219\/17\/14\u3068\u898f\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u3068\u3001\u4fdd\u8a3c\u304c\u7121\u52b9\u306b\u306a\u308a\u3001\u6469\u8017\u304c\u65e9\u307e\u308a\u307e\u3059\u3002.<\/p>\n<\/section>\n<section class=\"standards-comparison\">\n<h2>ISO 4406 vs NAS 1638 vs GB\/T 14039<\/h2>\n<p>\u6d41\u4f53\u306e\u6e05\u6d44\u5ea6\u306b\u3064\u3044\u3066\u306f\u3001\u5730\u57df\u306b\u3088\u3063\u30663\u3064\u306e\u57fa\u6e96\u304c\u3042\u308b\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9<\/th>\n<th>\u5730\u57df<\/th>\n<th>\u30b3\u30fc\u30c9\u5f62\u5f0f<\/th>\n<th>\u7c92\u5b50\u5f84<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ISO 4406<\/td>\n<td>\u30a4\u30f3\u30bf\u30fc\u30ca\u30b7\u30e7\u30ca\u30eb<\/td>\n<td>XX\/YY\/ZZ<\/td>\n<td>4\u30016\u300114\u03bcm<\/td>\n<\/tr>\n<tr>\n<td>NAS 1638<\/td>\n<td>\u30a2\u30e1\u30ea\u30ab<\/td>\n<td>\u30af\u30e9\u30b900-12<\/td>\n<td>5\u300115\u300125\u300150\u3001100\u03bcm<\/td>\n<\/tr>\n<tr>\n<td>GB\/T 14039<\/td>\n<td>\u4e2d\u56fd<\/td>\n<td>ISO 4406\u3068\u540c\u7b49<\/td>\n<td>4\u30016\u300114\u03bcm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>ISO 4406\u306f\u3001\u305d\u306e\u5305\u62ec\u7684\u306a\u7c92\u5ea6\u7bc4\u56f2\u3068\u7c21\u4fbf\u306a\u691c\u51fa\u65b9\u6cd5\u306b\u3088\u308a\u3001\u4e16\u754c\u6a19\u6e96\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002GB\/T 14039-2022\u306fISO 4406\u3068\u540c\u7b49\u3067\u3042\u308a\u3001\u4e2d\u56fd\u3068\u56fd\u969b\u898f\u683c\u9593\u306e\u4e00\u8cab\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n<\/section>\n<section class=\"implementation\">\n<h2>\u76ee\u6a19\u6e05\u6d44\u5ea6\u3092\u9054\u6210\u3059\u308b\u306b\u306f<\/h2>\n<p>\u4ee5\u4e0b\u306e\u624b\u9806\u306b\u5f93\u3063\u3066\u3001\u9069\u5207\u306a\u6db2\u4f53\u6e05\u6d44\u5ea6\u3092\u78ba\u7acb\u3057\u3001\u7dad\u6301\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n<h3>\u30b9\u30c6\u30c3\u30d71\uff1a\u30aa\u30a4\u30eb\u5206\u6790\u306e\u5b9f\u65bd<\/h3>\n<p>\u30dd\u30fc\u30bf\u30d6\u30eb\u30d1\u30fc\u30c6\u30a3\u30af\u30eb\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u30b7\u30b9\u30c6\u30e0\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30dd\u30fc\u30c8\u306b\u76f4\u63a5\u63a5\u7d9a\u3059\u308b\u3068\u3001\u6700\u3082\u6b63\u78ba\u306a\u6e2c\u5b9a\u5024\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u30aa\u30a4\u30eb\u5206\u6790\u30d1\u30c3\u30c1\u30c6\u30b9\u30c8\u30ad\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u76ee\u8996\u3067\u6c5a\u308c\u3092\u8a55\u4fa1\u3057\u305f\u308a\u3001\u30dc\u30c8\u30eb\u30b5\u30f3\u30d7\u30eb\u3092\u8a66\u9a13\u6240\u306b\u9001\u3063\u3066\u7dcf\u5408\u7684\u306a\u30c6\u30b9\u30c8\u3092\u53d7\u3051\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002.<\/p>\n<p>\u56db\u534a\u671f\u3054\u3068\u306b\u30aa\u30a4\u30eb\u5206\u6790\u3092\u5b9f\u65bd\u3057\u3001\u7d4c\u6642\u7684\u306a\u6e05\u6d44\u5ea6\u306e\u50be\u5411\u3092\u8ffd\u8de1\u3059\u308b\u3002.<\/p>\n<h3>\u30b9\u30c6\u30c3\u30d72\uff1a\u308d\u904e\u306e\u5b9f\u65bd<\/h3>\n<p>\u76ee\u6a19\u3068\u3059\u308bISO\u30b3\u30fc\u30c9\u3068\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u8981\u4ef6\u306b\u57fa\u3065\u3044\u3066\u308d\u904e\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u5c02\u7528\u30d5\u30a3\u30eb\u30bf\u30fc\u30d1\u30cd\u30eb<\/strong>:\u7a3c\u50cd\u4e2d\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u30a4\u30f3\u30e9\u30a4\u30f3\u30fb\u30b3\u30f3\u30c7\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0<\/li>\n<li><strong>\u30dd\u30fc\u30bf\u30d6\u30eb\u30fb\u30d5\u30a3\u30eb\u30bf\u30fc\u30fb\u30ab\u30fc\u30c8<\/strong>:\u79fb\u9001\u304a\u3088\u3073\u7dca\u6025\u308d\u904e\u7528\u306e\u591a\u7528\u9014\u30e6\u30cb\u30c3\u30c8<\/li>\n<li><strong>\u30d6\u30ea\u30fc\u30b6\u30fc\u30d5\u30a3\u30eb\u30bf\u30fc<\/strong>:\u30ea\u30b6\u30fc\u30d0\u30fc\u547c\u5438\u6642\u306e\u74b0\u5883\u6c5a\u67d3\u3092\u9632\u3050<\/li>\n<li><strong>\u30aa\u30d5\u30e9\u30a4\u30f3\u814e\u30eb\u30fc\u30d7\u6ffe\u904e<\/strong>:\u30b7\u30b9\u30c6\u30e0\u904b\u8ee2\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u306a\u3044\u9023\u7d9a\u7cbe\u5bc6\u308d\u904e<\/li>\n<\/ul>\n<h3>\u30b9\u30c6\u30c3\u30d73\uff1a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u78ba\u7acb<\/h3>\n<ul>\n<li>\u30e1\u30fc\u30ab\u30fc\u304c\u63a8\u5968\u3059\u308b\u9593\u9694\u3067\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u4ea4\u63db\u3059\u308b<\/li>\n<li>\u65e9\u671f\u8b66\u544a\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u3068\u3057\u3066\u30d5\u30a3\u30eb\u30bf\u30fc\u5dee\u5727\u3092\u76e3\u8996<\/li>\n<li>\u30aa\u30a4\u30eb\u30fb\u30b5\u30f3\u30d7\u30eb\u3092\u63a1\u53d6\u3059\u308b\u969b\u306f\u3001\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30fb\u30dd\u30fc\u30c8\u3092\u6e05\u6f54\u306b\u4fdd\u3064\u3053\u3068\u3002<\/li>\n<li>\u65b0\u3057\u3044\u6db2\u4f53\u306f\u6e05\u6f54\u306a\u5bb9\u5668\u306b\u4fdd\u7ba1\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u52a0\u3048\u308b\u524d\u306b\u308d\u904e\u3059\u308b\u3002<\/li>\n<\/ul>\n<\/section>\n<section class=\"faq\">\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>ISO 4406\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u3068\u306f\u3069\u3046\u3044\u3046\u610f\u5473\u3067\u3059\u304b\uff1f<\/h3>\n<p>ISO 4406\u30b3\u30fc\u30c9\u3067\u306f\u30013\u3064\u306e\u7c92\u5ea6\u7bc4\u56f2\u3067\u7c92\u5b50\u6570\u3092\u5831\u544a\u3057\u3066\u3044\u308b\u3002\u6570\u5024\u304c\u5c0f\u3055\u3044\u307b\u3069\u3001\u3088\u308a\u6e05\u6d44\u306a\u6db2\u4f53\u3092\u793a\u3059\u3002\u30b3\u30fc\u30c919\/17\/14\u306f\u30011\u30df\u30ea\u30ea\u30c3\u30c8\u30eb\u5f53\u305f\u308a\u30014\u03bcm\u4ee5\u4e0a\u30672,500\uff5e5,000\u500b\u30016\u03bcm\u4ee5\u4e0a\u3067630\uff5e1,250\u500b\u300114\u03bcm\u4ee5\u4e0a\u306740\uff5e80\u500b\u306e\u7c92\u5b50\u3092\u610f\u5473\u3057\u307e\u3059\u3002.<\/p>\n<h3>\u6cb9\u5727\u4f5c\u52d5\u6cb9\u306e\u6e05\u6d44\u5ea6\u306f\u3069\u308c\u304f\u3089\u3044\u306e\u983b\u5ea6\u3067\u691c\u67fb\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u30aa\u30a4\u30eb\u306e\u6e05\u6d44\u5ea6\u306f\u3001\u5b9a\u671f\u4fdd\u5b88\u70b9\u691c\u6642\u306b\u56db\u534a\u671f\u3054\u3068\u306b\u30c6\u30b9\u30c8\u3059\u308b\u3053\u3068\u3002\u30b7\u30b9\u30c6\u30e0\u306e\u6539\u9020\u3001\u90e8\u54c1\u306e\u4ea4\u63db\u3001\u6c5a\u67d3\u4e8b\u6545\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3001\u3088\u308a\u983b\u7e41\u306b\u30c6\u30b9\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5b9a\u671f\u7684\u306a\u76e3\u8996\u306b\u3088\u308a\u3001\u6545\u969c\u306e\u539f\u56e0\u3068\u306a\u308b\u524d\u306b\u50be\u5411\u3092\u7279\u5b9a\u3059\u308b\u3002.<\/p>\n<h3>\u30aa\u30a4\u30eb\u306e\u6e05\u6d44\u5ea6\u304c\u5fc5\u8981\u4ee5\u4e0a\u306b\u60aa\u3044\u5834\u5408\u306f\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u6c5a\u67d3\u3055\u308c\u305f\u6d41\u4f53\u306f\u3001\u30dd\u30f3\u30d7\u3001\u30d0\u30eb\u30d6\u3001\u30b7\u30ea\u30f3\u30c0\u30fc\u306e\u6469\u8017\u3092\u52a0\u901f\u3055\u305b\u307e\u3059\u3002\u30b5\u30fc\u30dc\u30d0\u30eb\u30d6\u306e\u3088\u3046\u306a\u7cbe\u5bc6\u90e8\u54c1\u306f\u3001\u30b9\u30c6\u30a3\u30c3\u30af\u30b9\u30ea\u30c3\u30d7\u6319\u52d5\u3001\u7cbe\u5ea6\u52a3\u5316\u3001\u65e9\u671f\u6545\u969c\u3092\u7d4c\u9a13\u3057\u307e\u3059\u3002\u696d\u754c\u306e\u30c7\u30fc\u30bf\u306b\u3088\u308b\u3068\u3001\u6cb9\u5727\u30b7\u30b9\u30c6\u30e0\u306e\u6545\u969c\u306e\u7d0480%\u304c\u6c5a\u67d3\u306b\u95a2\u9023\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>\u6cb9\u5727\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u3069\u306eISO\u30b3\u30fc\u30c9\u3092\u6307\u5b9a\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u6700\u3082\u654f\u611f\u306a\u90e8\u54c1\u306e\u8981\u4ef6\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\u3002\u30d4\u30b9\u30c8\u30f3\u30dd\u30f3\u30d7\u306f\u901a\u5e38\u3001\u6700\u4f4e19\/17\/14\u304c\u5fc5\u8981\u3067\u3059\u3002\u30b5\u30fc\u30dc\u30d0\u30eb\u30d6\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u901a\u5e3814\/12\/9\u4ee5\u4e0a\u306e\u3001\u3088\u308a\u6e05\u6d44\u306a\u6db2\u4f53\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u5b89\u5168\u30de\u30fc\u30b8\u30f3\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u6700\u3082\u53b3\u3057\u3044\u8981\u4ef6\u3088\u308a\u3082\u6e05\u6d44\u306a\u3082\u306e\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<\/section>\n<section class=\"conclusion\">\n<h2>\u7d50\u8ad6<\/h2>\n<p>ISO 4406\u306f\u3001\u4f5c\u52d5\u6cb9\u306e\u6e05\u6d44\u5ea6\u306b\u95a2\u3059\u308b\u4e16\u754c\u5171\u901a\u8a9e\u3067\u3059\u30023\u6841\u306e\u6570\u5b57\u306e\u8aad\u307f\u65b9\u3092\u7406\u89e3\u3057\u3001\u6e05\u6d44\u5ea6\u30ec\u30d9\u30eb\u3092\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u8981\u4ef6\u306b\u9069\u5408\u3055\u305b\u3001\u9069\u5207\u306a\u308d\u904e\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3067\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u6280\u8853\u8005\u306f\u6c5a\u67d3\u306b\u95a2\u9023\u3059\u308b\u6545\u969c\u3092\u9632\u6b62\u3057\u3001\u6a5f\u5668\u306e\u5bff\u547d\u3092\u5ef6\u3070\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n<p>\u5b9a\u671f\u7684\u306a\u6cb9\u5206\u6790\u3001\u9069\u5207\u306a\u308d\u904e\u3001\u4e00\u8cab\u3057\u305f\u4fdd\u5b88\u4f5c\u696d\u306b\u3088\u308a\u3001\u6cb9\u5727\u30b7\u30b9\u30c6\u30e0\u306f\u76ee\u6a19\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u5185\u3067\u4f5c\u52d5\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3092\u6e1b\u3089\u3057\u3001\u90e8\u54c1\u306e\u5bff\u547d\u3092\u5ef6\u3070\u3057\u3001\u8a2d\u5099\u6295\u8cc7\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Introduction Hydraulic systems depend on clean fluid to function reliably. Even small particles\u2014visible only under a microscope\u2014cause wear, seizure, and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4557,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4554","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes - Hydrath Power<\/title>\n<meta name=\"description\" content=\"Learn how ISO 4406 cleanliness codes work, how to read particle count reports, and which cleanliness levels your hydraulic components need.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hydrathpower.com\/ja\/iso-4406-\u6cb9\u5727\u30aa\u30a4\u30eb\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u5b8c\u5168\u30ac\u30a4\u30c9\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes - Hydrath Power\" \/>\n<meta property=\"og:description\" content=\"Learn how ISO 4406 cleanliness codes work, how to read particle count reports, and which cleanliness levels your hydraulic components need.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hydrathpower.com\/ja\/iso-4406-\u6cb9\u5727\u30aa\u30a4\u30eb\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u5b8c\u5168\u30ac\u30a4\u30c9\/\" \/>\n<meta property=\"og:site_name\" content=\"Hydrath Power\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-09T08:25:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1027\" \/>\n\t<meta property=\"og:image:height\" content=\"875\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"unohydrath\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"unohydrath\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"5\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/\"},\"author\":{\"name\":\"unohydrath\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#\\\/schema\\\/person\\\/6edfda07a2534b174472a872ae9be426\"},\"headline\":\"ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes\",\"datePublished\":\"2026-04-09T08:25:52+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/\"},\"wordCount\":826,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/hydrathpower.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg\",\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/\",\"url\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/\",\"name\":\"ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes - Hydrath Power\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/hydrathpower.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg\",\"datePublished\":\"2026-04-09T08:25:52+00:00\",\"description\":\"Learn how ISO 4406 cleanliness codes work, how to read particle count reports, and which cleanliness levels your hydraulic components need.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#primaryimage\",\"url\":\"https:\\\/\\\/hydrathpower.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg\",\"contentUrl\":\"https:\\\/\\\/hydrathpower.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg\",\"width\":1027,\"height\":875,\"caption\":\"ISO 4406 Explained A Complete Guide to Hydraulic Oil Cleanliness Codes\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/hydrathpower.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#website\",\"url\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/\",\"name\":\"Hydrath Power\",\"description\":\"Hydraulic Product Supplier\",\"publisher\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#organization\",\"name\":\"Hydrath Power\",\"url\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/hydrathpower.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Untitled-design.png\",\"contentUrl\":\"https:\\\/\\\/hydrathpower.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Untitled-design.png\",\"width\":350,\"height\":100,\"caption\":\"Hydrath Power\"},\"image\":{\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/#\\\/schema\\\/person\\\/6edfda07a2534b174472a872ae9be426\",\"name\":\"unohydrath\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a4c3e4f5b9346c699aed8e727959ec03d0a34029a1e8ffb2bbe414d94ca01f6a?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a4c3e4f5b9346c699aed8e727959ec03d0a34029a1e8ffb2bbe414d94ca01f6a?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/a4c3e4f5b9346c699aed8e727959ec03d0a34029a1e8ffb2bbe414d94ca01f6a?s=96&d=mm&r=g\",\"caption\":\"unohydrath\"},\"sameAs\":[\"https:\\\/\\\/hydrathpower.com\"],\"url\":\"https:\\\/\\\/hydrathpower.com\\\/ja\\\/author\\\/unohydrath\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"ISO 4406\u306e\u8aac\u660e\uff1a\u6cb9\u5727\u30aa\u30a4\u30eb\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u306e\u5b8c\u5168\u30ac\u30a4\u30c9 - Hydrath Power","description":"ISO 4406\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u306e\u4ed5\u7d44\u307f\u3001\u30d1\u30fc\u30c6\u30a3\u30af\u30eb\u30ab\u30a6\u30f3\u30c8\u30ec\u30dd\u30fc\u30c8\u306e\u8aad\u307f\u65b9\u3001\u6cb9\u5727\u90e8\u54c1\u306b\u5fc5\u8981\u306a\u6e05\u6d44\u5ea6\u30ec\u30d9\u30eb\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/hydrathpower.com\/ja\/iso-4406-\u6cb9\u5727\u30aa\u30a4\u30eb\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u5b8c\u5168\u30ac\u30a4\u30c9\/","og_locale":"ja_JP","og_type":"article","og_title":"ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes - Hydrath Power","og_description":"Learn how ISO 4406 cleanliness codes work, how to read particle count reports, and which cleanliness levels your hydraulic components need.","og_url":"https:\/\/hydrathpower.com\/ja\/iso-4406-\u6cb9\u5727\u30aa\u30a4\u30eb\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u5b8c\u5168\u30ac\u30a4\u30c9\/","og_site_name":"Hydrath Power","article_published_time":"2026-04-09T08:25:52+00:00","og_image":[{"width":1027,"height":875,"url":"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg","type":"image\/jpeg"}],"author":"unohydrath","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"unohydrath","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"5\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#article","isPartOf":{"@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/"},"author":{"name":"unohydrath","@id":"https:\/\/hydrathpower.com\/ja\/#\/schema\/person\/6edfda07a2534b174472a872ae9be426"},"headline":"ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes","datePublished":"2026-04-09T08:25:52+00:00","mainEntityOfPage":{"@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/"},"wordCount":826,"commentCount":0,"publisher":{"@id":"https:\/\/hydrathpower.com\/ja\/#organization"},"image":{"@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#primaryimage"},"thumbnailUrl":"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg","articleSection":["Uncategorized"],"inLanguage":"ja","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/","url":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/","name":"ISO 4406\u306e\u8aac\u660e\uff1a\u6cb9\u5727\u30aa\u30a4\u30eb\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u306e\u5b8c\u5168\u30ac\u30a4\u30c9 - Hydrath Power","isPartOf":{"@id":"https:\/\/hydrathpower.com\/ja\/#website"},"primaryImageOfPage":{"@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#primaryimage"},"image":{"@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#primaryimage"},"thumbnailUrl":"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg","datePublished":"2026-04-09T08:25:52+00:00","description":"ISO 4406\u6e05\u6d44\u5ea6\u30b3\u30fc\u30c9\u306e\u4ed5\u7d44\u307f\u3001\u30d1\u30fc\u30c6\u30a3\u30af\u30eb\u30ab\u30a6\u30f3\u30c8\u30ec\u30dd\u30fc\u30c8\u306e\u8aad\u307f\u65b9\u3001\u6cb9\u5727\u90e8\u54c1\u306b\u5fc5\u8981\u306a\u6e05\u6d44\u5ea6\u30ec\u30d9\u30eb\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002.","breadcrumb":{"@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#primaryimage","url":"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg","contentUrl":"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/ISO-4406-Explained-A-Complete-Guide-to-Hydraulic-Oil-Cleanliness-Codes.jpg","width":1027,"height":875,"caption":"ISO 4406 Explained A Complete Guide to Hydraulic Oil Cleanliness Codes"},{"@type":"BreadcrumbList","@id":"https:\/\/hydrathpower.com\/ja\/iso-4406-explained-a-complete-guide-to-hydraulic-oil-cleanliness-codes\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/hydrathpower.com\/"},{"@type":"ListItem","position":2,"name":"ISO 4406 Explained: A Complete Guide to Hydraulic Oil Cleanliness Codes"}]},{"@type":"WebSite","@id":"https:\/\/hydrathpower.com\/ja\/#website","url":"https:\/\/hydrathpower.com\/ja\/","name":"\u30cf\u30a4\u30c9\u30e9\u30b9\u30fb\u30d1\u30ef\u30fc","description":"\u6cb9\u5727\u88fd\u54c1\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc","publisher":{"@id":"https:\/\/hydrathpower.com\/ja\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/hydrathpower.com\/ja\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/hydrathpower.com\/ja\/#organization","name":"\u30cf\u30a4\u30c9\u30e9\u30b9\u30fb\u30d1\u30ef\u30fc","url":"https:\/\/hydrathpower.com\/ja\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/hydrathpower.com\/ja\/#\/schema\/logo\/image\/","url":"https:\/\/hydrathpower.com\/wp-content\/uploads\/2025\/11\/Untitled-design.png","contentUrl":"https:\/\/hydrathpower.com\/wp-content\/uploads\/2025\/11\/Untitled-design.png","width":350,"height":100,"caption":"Hydrath Power"},"image":{"@id":"https:\/\/hydrathpower.com\/ja\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/hydrathpower.com\/ja\/#\/schema\/person\/6edfda07a2534b174472a872ae9be426","name":"\u30a6\u30ce\u30d2\u30c9\u30e9\u30b9","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/secure.gravatar.com\/avatar\/a4c3e4f5b9346c699aed8e727959ec03d0a34029a1e8ffb2bbe414d94ca01f6a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/a4c3e4f5b9346c699aed8e727959ec03d0a34029a1e8ffb2bbe414d94ca01f6a?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a4c3e4f5b9346c699aed8e727959ec03d0a34029a1e8ffb2bbe414d94ca01f6a?s=96&d=mm&r=g","caption":"unohydrath"},"sameAs":["https:\/\/hydrathpower.com"],"url":"https:\/\/hydrathpower.com\/ja\/author\/unohydrath\/"}]}},"_links":{"self":[{"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/posts\/4554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/comments?post=4554"}],"version-history":[{"count":2,"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/posts\/4554\/revisions"}],"predecessor-version":[{"id":4556,"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/posts\/4554\/revisions\/4556"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/media\/4557"}],"wp:attachment":[{"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/media?parent=4554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/categories?post=4554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hydrathpower.com\/ja\/wp-json\/wp\/v2\/tags?post=4554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}